DOCSLIB.ORG

Material Safety Data Sheet Sodium Hydrosulphite (Hydro)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Material Safety Data Sheet Sodium Hydrosulphite (Hydro) Safety Data Sheet According to EC Regulation / 1272/2008 TSIPL/MSDS/001/18, Revision 03/03-01-2018 MATERIAL SAFETY DATA SHEET SODIUM HYDROSULPHITE (HYDRO) 1. Identification of Substance and Manufacturer 1.1 Product details Product name : Sodium hydrosulphite CAS No. : 7775 – 14 – 6 Synonyms : Sodium hydrosulphite; Sodium dithionite, Hydro Chemical Formula : Na2S2O4 Molecular weight : 174.11 g/mole Reach Registration No : 01 – 2119520510 – 57 – 001 Relevant identified uses : Reducing and Bleaching agent Bleaching : As a beaching aid in bleaching of ground wood pulp Textile : For dying and printing of Vat, Sulphur & Indigo dyes. Reduction clearing of synthetic goods. Stripping of dyes. Reducing Agent :Reduction of heavy metals such as Titanium, Chromium,Manganese, Molybdenum and Tungsten. Disulphide linkage in wool hair. Other Applications : Machine cleaning, Water treatment, Food bleaching (Sugar,Honey and gelatin),Soap Manufacturing and Glue manufacturing. 1.2 Company details TRANSPEK – SILOX INDUSTRY PRIVATE LIMITED Kalali Road, Atladra, Vadodara – 390 012, Gujarat, India Telephone : +91 265 2680401-05 Fax : +91 265 2680407 / 2680062 1.3 Emergency contact details Telephone: +91 265 2680401, Email : [email protected] Contact Person: Factory Manager www.transpek-silox.com Page 1 of 19 Safety Data Sheet According to EC Regulation / 1272/2008 TSIPL/MSDS/001/18, Revision 03/03-01-2018 MATERIAL SAFETY DATA SHEET SODIUM HYDROSULPHITE (HYDRO) 2. Hazard identification 2.1 Classification according to regulation (EC) 1272/2008 [EU-GHS/CLP] NFPA Rating HMIS Rating Health 1 1 Flammability 2 2 Reactivity 2 2 Specific hazard Not available E Classification according to EU Directives 67/548/EEC or 1999/45/EC May cause fire. Harmful if swallowed. Contact with acids liberates toxic gas. 2.2 Labeling elements according Regulation (EC) No 1272/2008 [CLP] Pictogram GHS02 GHS07 Signal word : Danger. Hazard statements : H251 – Self heating; may catch fire. : H302 – Harmful if swallowed. : H315 – Causes skin irritation : H320 – Cases eye irritation. : H333 – May be harmful if inhaled. : H335 - May cause respiratory irritation. : H341 - Suspected of causing genetic defects www.transpek-silox.com Page 2 of 19 Safety Data Sheet According to EC Regulation / 1272/2008 TSIPL/MSDS/001/18, Revision 03/03-01-2018 MATERIAL SAFETY DATA SHEET SODIUM HYDROSULPHITE (HYDRO) 2.2 Labeling elements according Regulation (EC) No 1272/2008 [CLP] Continue. Precautionary statements : P280 – Wear protective gloves and eye/face protection. (Prevention) P201 – Obtain special instructions before use. : P235 + P410- Keep cool. Protect from sunlight. P261 – Avoid breathing dust/fumes : P264 – Wash with plenty of water & soap after handling : P270 – Do not eat, drink or smoke when using this product. : P271 – Use only out doors or in well-ventilated area : P273 – Avoid release to the environment. P280 – Wear protective gloves/protective clothing/eye protection/face protection Precautionary statements : P301 + P312 – If swallowed, Call a DOCTOR if feel unwell. (Response) : P305 + P351 + P338 – If in eye, Rinse cautiously with water for several minutes, remove contact lenses, if present & easy to do. Continue rinsing : P308+P313 If exposed or concerned: Get medical advice/ attention. : P304+P312 IF INHALED: Call a POISON CENTER/doctor/physician/first aider/if you feel unwell. : P330 – Rinse mouth. : P337 + P311 – If eye irritation persists, Call a DOCTOR. : P370 – In case of fire, use large quantity of water : P391 – Collect spillage Precautionary statements : P407 – Maintain air gap between stacks / pellets (Storage) P403+P233 – Store in a well-ventilated place. Keep container tightly closed. : P420 – Store away from other material. www.transpek-silox.com Page 3 of 19 Safety Data Sheet According to EC Regulation / 1272/2008 TSIPL/MSDS/001/18, Revision 03/03-01-2018 MATERIAL SAFETY DATA SHEET SODIUM HYDROSULPHITE (HYDRO) 2.2 Labeling elements according Regulation (EC) No 1272/2008 [CLP] Continue. Precautionary statements : P501 – Dispose of contents / container to hazardous or special (Disposal) waste collection area or in accordance regulations. Supplemental Hazard : EUH031 – Contact with acids liberates toxic gas. information (EU) Hazard symbol According to European Directive 67/548/EEC as amended: R-phrase(s) : R 7 – May causes fire. : R22 – Harmful if swallowed. : R31 – Contact with acids liberates toxic gas. S-phrase(s) : S 7/8 – Keep container tightly closed and dry. : S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. : S28 – After skin contact, wash immediately with soap and water. Hazards Not Otherwise Classified No specific dangers known, if the regulations/notes for storage and handling are considered. If applicable information is provided in this section on other hazards which do not result in classification but which may contribute to the overall hazards of the substance or mixture. 3. Composition / Information on ingredients According to regulation 1994 / 2012 OSHA Hazard communication standard: 29 CFR Part 1910.1200 CAS No. Content Substance Name EINECS / EC No 7775 – 14 – 6 > 88 % Sodium dithionite 231 – 890 – 0 7757 – 83 - 7 Sodium sulphite ‎231 – 821 – 4 497 – 83 – 7 Sodium carbonate 207 – 838 – 8 7757 – 82 – 6 Sodium sulfate 231 – 820 – 9 7772 – 98 – 7 < 1 % Sodium thiosulfate 231 – 867 – 5 www.transpek-silox.com Page 4 of 19 Safety Data Sheet According to EC Regulation / 1272/2008 TSIPL/MSDS/001/18, Revision 03/03-01-2018 MATERIAL SAFETY DATA SHEET SODIUM HYDROSULPHITE (HYDRO) 4. First-aid measures General advice: Consult a physician. Show this MSDS to the doctor. In case of skin contact: If skin or hair contact occurs: o Immediately flush body & clothes with large amounts of water, using safety shower if available. o Quickly remove all contaminated clothing, including footwear. o Wash skin and hair with running water. Continue flushing with water until advised to stop by the Poisons Information Centre. In case of burns: Immediately apply cold water to burn either by immersion/ wrapping with saturated clean cloth. DO NOT remove or cut away clothing over burnt areas. DO NOT pull away clothing which has adhered to the skin as this can cause further injury. DO NOT break blister or remove solidified material. Quickly cover wound with dressing or clean cloth to help prevent infection and to ease pain. For high burns, sheets, towels or pillow slips are ideal; leave holes for eyes, nose and mouth. DO NOT apply ointments, oils, butter, etc. to a burn under any circumstances. Water may be given in small quantities if the person is conscious. Alcohol is not to be given under any circumstances. Reassure. Treat for shock by keeping the person warm and in a lying position. Seek medical aid and advise medical personnel in advance of the cause and extent of the injury and the estimated time of arrival of the patient. For thermal burns: Decontaminate area around burn. Consider the use of cold packs and topical antibiotics. For first-degree burns (affecting top layer of skin): Hold burned skin under cool running water or immerse in cool water until pain subsides. Use compresses if running water is not available. Cover with sterile non-adhesive bandage or clean cloth. Do NOT apply butter or ointments; this may cause infection. Give over-the counter pain relievers if pain increases or swelling, redness, fever occur. For second-degree burns (affecting top two layers of skin): Cool the burn by immerse in cold running water for 10-15 minutes. Use compresses if running water is not available. Do NOT apply ice as this may lower body temperature and cause further damage. Do NOT break blisters or apply butter or ointments; this may cause infection. Protect burn by cover loosely with sterile, non stick bandage &secure in place with gauze or tape. To prevent shock: (unless the person has a head, neck, or leg injury, or it would cause discomfort): Lay the person flat. Elevate feet about 12 inches. Elevate burn area above heart level, if possible. Cover the person with coat or blanket. For third-degree burns: Seek immediate medical or emergency assistance and In the mean time: Protect burn area cover loosely with sterile, non stick bandage or, for large areas, a sheet or other material that will not leave lint in wound. Separate burned toes and fingers with dry, sterile dressings. Do not soak burn in water or apply ointments or butter; this may cause infection. For an airway burn, do not place pillow under the person's head when he is lying down. This can close the airway. Have a person with a facial burn sit up. Check pulse and breathing to monitor for shock until emergency help arrives. www.transpek-silox.com Page 5 of 19 Safety Data Sheet According to EC Regulation / 1272/2008 TSIPL/MSDS/001/18, Revision 03/03-01-2018 MATERIAL SAFETY DATA SHEET SODIUM HYDROSULPHITE (HYDRO) In case of eye contact: o Remove the contact lenses. Removal of contact lenses after an eye injury should only be undertaken by skilled personnel. o Remove contact lenses and irrigate exposed eyes with copious amounts of 0.9% saline or water for at least 15 minutes. o Ensure complete flushing of the eye by keeping eyelids open and moving the eyelids by occasionally lifting the upper and lower lids. o If irritation, pain, swelling, lacrimation, or photophobia persist after 15 minutes of irrigation, seek medical attention without delay. o For THERMAL burns: Do NOT remove contact lens o Lay victim down, on stretcher if available and pad BOTH eyes, make sure dressing does not press on the injured eye by placing thick pads under dressing, above and below the eye. o Seek urgent medical assistance, or transport to hospital. If swallowed: IF SWALLOWED, REFER FOR MEDICAL ATTENTION, WHERE POSSIBLE, WITHOUT DELAY. Rinse mouth immediate with water, Avoid to give anything by mouth to an unconscious person, consult a physician In the mean time, qualified first-aid personnel should treat the patient following observation and employing supportive measures as indicated by the patient's condition.
Load more

Recommended publications
  • Derivatization of Methylglyoxal for LC-ESI-MS Analysis—Stability and Relative Sensitivity of Different Derivatives
    Supplementary Derivatization of Methylglyoxal for LC-ESI-MS Analysis—Stability and Relative Sensitivity of Different Derivatives Stefan Fritzsche 1,2, Susan Billig 1,, Robby Rynek 1, Ramarao Abburi 1,3, Elena Tarakhovskaya 1,4, Olga Leuner 1,5, Andrej Frolov 6 and Claudia Birkemeyer 1,* 1 Institute of Analytical Chemistry, Faculty of Chemistry and Mineralogy, University of Leipzig, 04103 Leipzig, Germany; [email protected] (S.F.), [email protected] (S.B.), [email protected] (R.R.), [email protected] (R.A.), [email protected] (E.T.), [email protected] (O.L.); 2 Institute of Pharmacy, Faculty of Medicine, University of Leipzig, 04103 Leipzig, Germany; 3 Department of Chemistry, Krishna University, Machilipatnam-521001, Andhra Pradesh, India; [email protected] 4 Department of Plant Physiology and Biochemistry, Saint Petersburg State University and Russian Academy of Science Library, Saint Petersburg 199034, Russian Federation; 5 Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, 165 00 Praha-Suchdol, Czech Republic; 6 Department of Biochemistry, St. Petersburg State University, Saint Petersburg 199034, Russian Federation; [email protected]; * Correspondence: [email protected]; Tel.: +49-341-973-6092 Synthesis of the permanently charged hydrazines and anilines 1.1. Materials and chemicals Acetonitrile (ACN; ROTISOLV®, ≥ 99.8%, for preparative HPLC), formic acid (> 98%, p.s.), n-hexane (ROTISOLV®, ≥ 95%, GC Ultra Grade), potassium bromate (p.a.), zinc dust (98%), methanol (ROTISOLV®, ≥ 99.95%, LC-MS Grade) and diethyl ether (ROTIPURAN®, ≥ 99.5%, p.a.) were purchased from Carl Roth, Karlsruhe, Germany. Ethanol (absolute, > 99.7%, HiPerSolv® CHROMANORM®), cyclohexane, 4-hydroxyacetanilide (p.s., ≥ 99.0%), sodium hydrogen carbonate, sodium sulfite (purum, anhydrous), potassium carbonate and hydroxide, ammonia (35%, p.a.), acetic (100%, p.a.) and sulfuric acid (98%, p.a.) were purchased from VWR Chemicals, Darmstadt, Germany.
    [Show full text]
  • Investigation of the Zinc-Mitophagy Signaling in Hypoxic Cells a Dissertation Presented to the Faculty of the College of Arts An
    Investigation of the Zinc-Mitophagy Signaling in Hypoxic Cells A dissertation presented to the faculty of the College of Arts and Sciences of Ohio University In partial fulfillment of the requirements for the degree Doctor of Philosophy Qiping Lu May 2020 © 2020 Qiping Lu. All Rights Reserved. 2 This dissertation titled Investigation of the Zinc-Mitophagy Signaling in Hypoxic Cells by QIPING LU has been approved for the Department of Molecular and Cellular Biology and the College of Arts and Sciences by Yang V. Li Professor of Biomedical Sciences Florenz Plassmann Dean, College of Arts and Sciences 3 ABSTRACT LU, QIPING, Ph.D., May 2020, Molecular and Cellular Biology Investigation of the Zinc-Mitophagy Signaling in Hypoxic Cells Director of Dissertation: Yang V. Li Zinc is one of the most essential trace elements in the body. The concentration of intracellular free zinc is strictly regulated. The abnormal zinc concentration has been implicated in numerous clinical manifestations including ischemic stroke. Zinc homeostasis is achieved by proteins and organelles which sequester zinc or release zinc. Mitochondria are the power plants of the cell, the proper function of mitochondria is crucial for cellular metabolisms and physiological activities, their quality and quantity are regulated by mitophagy through selectively removing damaged mitochondria. Emerging evidence over the past decade has shown that zinc affects mitochondria in response to ischemia. It is progressively clear that zinc-mitochondrial interactions occur in and contribute to ischemic injury. Among the pathological effects of zinc accumulation on mitochondria, zinc induced release and accumulation of ROS draws special interest. ROS is a major cause of mitochondrial damage and initiates mitophagy.
    [Show full text]
  • Safety Data Sheet
    World Headquarters Hach Company P.O.Box 389 MSDS No: M00107 Loveland, CO USA 80539 (970) 669-3050 SAFETY DATA SHEET _____________________________________________________________________________ 1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION Product Name: Hydrosulfite Reagent for Total Copper Catalog Number: 2118869 Hach Company Emergency Telephone Numbers: P.O.Box 389 (Medical and Transportation) Loveland, CO USA 80539 (303) 623-5716 24 Hour Service (970) 669-3050 (515)232-2533 8am - 4pm CST MSDS Number: M00107 Chemical Name: Dithionous acid, disodium salt CAS Number: 7775-14-6 Additional CAS No. (for hydrated forms): Not applicable Chemical Formula: Na2S2O4 Chemical Family: Reducing Agent Intended Use: Laboratory Use _____________________________________________________________________________ 2. HAZARDS IDENTIFICATION GHS Classification: Hazard categories: Self Heating: Self-heat. 1 Acute Toxicity: Acute Tox. 4-Orl . Serious Eye Damage/Eye Irritation:Eye Irrit. 2 Specific Target Organ Toxicity - Single Exposure: STOT SE 3 Hazardous to the Aquatic Environment: Aquatic Chronic 3 GHS Label Elements: DANGER Hazard statements: Self-heating: maycatch fire. Harmful if swallowed. Causes serious eye irritation. May cause respiratory irritation. Harmful to aquatic life with long lasting effects. Precautionary statements: Avoid breathing dust/fume/gas/mist/vapours/spray. Handle environmental release according to local, state, federal, provincial requirements. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention. IF INHALED: Remove victim/person to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER or doctor/physician if you feel unwell. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
    [Show full text]
  • An Approach to the Influence of Particle Size Distribution of Leuco Vat Dye Converted by a Reducing Agent
    Fibers and Polymers 2006, Vol.7, No.2, 164-168 An Approach to the Influence of Particle Size Distribution of Leuco Vat Dye Converted by a Reducing Agent Woo Sub Shim*, Jung Jin Lee1, and Renzo Shamey Fiber and Polymer Science Program, North Carolina State University, Raleigh, NC 27695-8301, USA 1Department of Textile Engineering, Dankook University, Seoul 140-714, Korea (Received January 25, 2006; Revised March 23, 2006; Accepted April 2, 2006) Abstract: Three vat dyes have been applied to regular viscose rayon and their dyeing and wash fastness properties were eval- uated. Particle size determination was undertaken to obtain information about the size of dye particles converted by a reduc- ing agent, to see if dye particle size has an affect on dyeing properties of regular viscose rayon. It is observed that viscose rayon exhibits more dyeability with reducing agent concentrations between 5-7.5 g/l. Also, we found that the vat dyeing sys- tem is greatly affected by the particle size of the vat dye converted to leuco form by a reducing agent. Keywords: Particle size, Particle size distribution, Reducing agent, Viscose rayon, Vat dye, Dyeing properties, Wash fastness Introduction (Na2S2O4). The name “hydro” is commonly used for sodium hydrosulfite in the dyehouse. Reduction is done in the presence Vat dyes are used to dye cellulosic fibers in relatively dull of sodium hydroxide (NaOH) which is usually called caustic. shades requiring good fastness. They are insoluble in water The quantities of caustic and hydro required depend on how and cannot be used directly for dyeing cellulosic fibers.
    [Show full text]
  • 12 Env/Jm/Mono(2004)12
    Unclassified ENV/JM/MONO(2004)12 Organisation de Coopération et de Développement Economiques Organisation for Economic Co-operation and Development 24-Jun-2004 ___________________________________________________________________________________________ _____________ English - Or. English ENVIRONMENT DIRECTORATE JOINT MEETING OF THE CHEMICALS COMMITTEE AND Unclassified ENV/JM/MONO(2004)12 THE WORKING PARTY ON CHEMICALS, PESTICIDES AND BIOTECHNOLOGY OECD SERIES ON EMISSION SCENARIO DOCUMENTS Number 7 EMISSION SCENARIO DOCUMENT ON TEXTILE FINISHING INDUSTRY English - Or. English JT00166691 Document complet disponible sur OLIS dans son format d'origine Complete document available on OLIS in its original format ENV/JM/MONO(2004)12 OECD Environmental Health and Safety Publications Series on Emission Scenario Documents No. 7 EMISSION SCENARIO DOCUMENT ON TEXTILE FINISHING INDUSTRY Environment Directorate Organisation for Economic Co-operation and Development June 2004 3 ENV/JM/MONO(2004)12 ABOUT THE OECD The Organisation for Economic Co-operation and Development (OECD) is an intergovernmental organisation in which representatives of 30 industrialised countries in North America, Europe and the Pacific, as well as the European Commission, meet to co-ordinate and harmonize policies, discuss issues of mutual concern, and work together to respond to international problems. Most of the OECD's work is carried out by more than 200 specialised Committees and subsidiary groups composed of Member country delegates. Observers from several countries with
    [Show full text]
  • Ge 1/9 Safety Data Sheet Acc
    Page 1/9 Safety Data Sheet acc. to ISO/DIS 11014 Printing date 09/03/2014 Reviewed on 09/03/2014 1 Identification · Product identifier · Trade name: Vario Ferro F10, 25 ml · Catalogue number: 00530569, (4)530560, 530563, 00530579, (4)530570 · Relevant identified uses of the substance or mixture and uses advised against: No further relevant information available. · Application of the substance / the mixture: Reagent for water analysis · Manufacturer/Supplier: Tintometer Inc. 6456 Parkland Drive Sarasota, FL 34243 USA phone: (941) 756-6410 fax: (941) 727-9654 www.lovibond.us Made in Germany · Emergency telephone number: Chemtrec® : (US & Canada) 800-424-9300 (International) +1 (703) 527-3887 * 2 Hazard(s) identification · Classification of the substance or mixture US-GHS ~ GHS05 Corrosion Eye Dam. 1 H318 Causes serious eye damage. ~ GHS07 Acute Tox. 4 H302 Harmful if swallowed. Skin Sens. 1 H317 May cause an allergic skin reaction. · Classification according to Directive 67/548/EEC or Directive 1999/45/EC ?@G Xn; Harmful R22: Harmful if swallowed. ?@G Xi; Irritant R41: Risk of serious damage to eyes. R31: Contact with acids liberates toxic gas. · Label elements · GHS label elements The product is classified and labeled according to the Globally Harmonized System (GHS). · Hazard pictograms GHS05, GHS07 · Signal word Danger · Hazard-determining components of labeling: sodium dithionite disodium disulphite methenamine · Hazard statements H302 Harmful if swallowed. H318 Causes serious eye damage. H317 May cause an allergic skin reaction. (Contd. on page 2) USA 39.2.3.5 Page 2/9 Safety Data Sheet acc. to ISO/DIS 11014 Printing date 09/03/2014 Reviewed on 09/03/2014 Trade name: Vario Ferro F10, 25 ml (Contd.
    [Show full text]
  • Safety Data Sheet
    SAFETY DATA SHEET Preparation Date: 8/12/2016 Revision Date: 8/11/2016 Revision Number: G1 1. IDENTIFICATION Product identifier Product code: S1809 Product Name: SODIUM HYDROSULFITE, REAGENT Other means of identification Synonyms: Disodium dithionite Disodium hydrosulfite Dithionous acid, disodium salt Sodium dithionite Sodium hyposulfite Sodium sulfoxylate CAS #: 7775-14-6 RTECS # Not available CI#: Not available Recommended use of the chemical and restrictions on use Recommended use: In the textile industry, it is primarily used as a reducing agent for vat dyes and sulfur containing dyes and for removal of pigments on textiles. Pulp and paper bleaching. Dyestripping applications. Uses advised against No information available Supplier: Spectrum Chemical Mfg. Corp 14422 South San Pedro St. Gardena, CA 90248 (310) 516-8000. Order Online At: https://www.spectrumchemical.com Emergency telephone number Chemtrec 1-800-424-9300 Contact Person: Martin LaBenz (West Coast) Contact Person: Ibad Tirmiz (East Coast) 2. HAZARDS IDENTIFICATION Classification This chemical is considered hazardous according to the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200) Considered a dangerous substance or mixture according to the Globally Harmonized System (GHS) Serious eye damage/eye irritation Category 2B Specific target organ toxicity (single exposure) Category 3 Self-heating substances and mixtures Category 1 Label elements Danger Hazard statements Product code: S1809 Product name: SODIUM 1 / 12 HYDROSULFITE, REAGENT Causes eye irritation May cause respiratory irritation Self-heating: may catch fire Hazards not otherwise classified (HNOC) Reacts with water to release toxic and/or corrosive gases Reacts with water to evolve heat Other hazards May be harmful if swallowed Precautionary Statements - Prevention Wash face, hands and any exposed skin thoroughly after handling Avoid breathing dust/fume/gas/mist/vapors/spray Use only outdoors or in a well-ventilated area Keep cool.
    [Show full text]
  • Reduction Clearing of Simulated Disperse Dyed PLA Fabrics and Their Tensile Properties
    Indian Journal of Fibre & Textile Research Vol. 38, March 2013, pp. 22-28 Reduction clearing of simulated disperse dyed PLA fabrics and their tensile properties Gulzar A Baiga University College of Textile Engineering, B.Z.U 60800 Multan, Punjab, Pakistan Received 18 October 2011; revised received and accepted 19 March 2012 Polylactic acid (PLA) knitted fabric has been subjected to various textile wet processes, viz. scouring, bleaching and simulated disperse dyeing. Reduction clearing (RC) has been performed at various process conditions such as concentrations of sodium dithionite and sodium carbonate, bath temperature and process time and a full factorial experiment is designed. The results show that the pretreatment processes and RC parameters have pronounced effects on tensile properties of PLA yarns. Statistical analysis of variance is performed which show significant differences at a confidence interval of 99%. Attenuated total reflectance infrared spectroscopy of the PLA fabric is carried out to investigate chemical changes on fibre surface. Scanning electron microscopy reveals that the bleaching causes the formation of slits in the fibres. Since bleached fibres are already porous, the strength of PLA yarns is further decreased during simulated disperse dyeing and reduction clearing processes. Keywords: Disperse dye, Fibres, Polylactic acid fabric, Reduction clearing wash, Tensile strength 1 Introduction surface cohesion PLA produces sound when fibres are Polylactic acid (PLA) is a renewable and rubbed against one another – scroopiness9. biodegradable polyester material1. The biodegradable PLA has been dyed with disperse dyes10,11. DyStar materials are broken down into smaller molecules in recommends dyeing PLA at 110oC and pH 4.5-5.0 for the presence of aerobic or anaerobic microorganisms2, 30 min12.
    [Show full text]
  • Sodium Dithionite
    MATERIAL SAFETY DATA SHEET SODIUM DITHIONITE PRODUCT CODE NUMBER(S): 7790-1 PRODUCT IDENTIFICATION or in contact with damp air, toignite nearby combustible materials. Chemical Name and Synonyms: Sodium dithionite; So- Hazardous Decomposition Products: Highly toxic fumes dium hydrosulphite; Sodium sulfoxylate of SO , sulphur vapour. Chemical Family: Metal salt/inorganic sodium compound x Chemical Formula: Na2S2O4+H2O FIRE AND EXPLOSION DATA Product Use: Laboratory reagent Flammability: Can ignite if exposed to high temperatures. Manufacturer’s Name and Address: Addition of catalytic amounts of water, and/or temperatures Caledon Laboratories Ltd. above 60°C can initiate exothermic decomposition, with 40 Armstrong Avenue enough heat generated to ignite combustible materials. Dur- Georgetown, Ontario L7G 4R9 ing decomposition, sulphur vapour (which will burn under certain circumstances) may be released. Telephone No: (905) 877-0101 Extinguishing Media: Use water in flooding amounts to Fax No: (905) 877-6666 extinguish fire and stop decomposition. If water is not avail- Emergency Telephone No: CANUTEC (613) 996-6666 able, allow material to burn. Chemical extinguishers will not cool the decomposing material. If sealed containers are hot HAZARDOUS INGREDIENTS OF MATERIALS to touch or appear to bulge, vent by safest means possible, moving to safe, open area, flooding with water, containing all Ingredients % TLV Units CAS No. runoff. Firefighters must wear protective equipment (posi- 3 tive-pressure, full face-piece self-contained breathing Sodium
    [Show full text]
  • Luminol Synthesis
    Luminol Synthesis Objective To develop organic lab techniques and synthesize luminol (5-amino-2,3-dihydro-1,4- phthalazinedione). Background Luminol is a popular star on a variety of crime scene investigation programs. Luminol luminesces when exposed to blood, and it is often used to find traces of blood at a crime scene. However, once you understand that luminol emits a photon after its oxidized, you realize that the heme in hemoglobin is simply catalyzing the oxidation of luminol. Thus, blood is not necessary; luminol will luminesce in the presence of any oxidizing agent (like bleach) or in the presence of O2 and a catalyst. NH2 O NH2 O NH2 O * – OH O2 NH N O + N2 eq 1 NH N O O O O The excited molecule produced in equation one relaxes to its ground state by releasing a photon. NH2 O * NH2 O O O + hν eq 2 O O O O To make luminol, we will follow the synthesis drawn in Scheme 1. NO O NH O NO2 O 2 2 Na S O OH NH2 NH 2 2 4 NH OH NH2 Δ NH NH O O O Scheme 1 Procedure1 Synthesis of 5-nitrophthalhydrazide (step 1) Combine 0.300 g of 3-nitrophthalic acid and 0.4 mL of 10% aqueous hydrazine in a side arm test tube. Heat the test tube over a microburner until the solid dissolves. Add 0.8 mL of triethylene glycol to the test tube. Clamp the test tube to a ring stand, insert a thermometer into the test tube (use a two holed rubber stopper, one hole for the thermometer and the other to make certain that the system is not sealed), and connect the side arm to a vacuum source.
    [Show full text]
  • Sodium Hydrosulfite.Pdf
    MATERIAL SAFETY DATA SHEET Page 1 of 13 SODIUM FOR CHEMICAL EMERGENCY HYDROSULFITE 24 Hours POWDERS & BLENDS IN CANADA Call CANUTEC (613) 996-6666 Revision: 4 IN the USA Call CHEMTREC (800) 424-9300 Revised Date: CHEMTREC – OUTSIDE USA (703) 527-3887 June 25, 2010 Chemtrade Emergency Contact: (866) 416-4404 Replaces MSDS dated: June 25, 2007 SECTION 01 – PRODUCT & COMPANY IDENTIFICATION COMPANY INFORMATION: Corporate Office In USA In Canada CHEMTRADE LOGISTICS CHEMTRADE PERFORMANCE 3406 Gene-H.-Kruger Boulevard 155 Gordon Baker Road CHEMICALS Trois-Rivières (Québec) G9A 4M3 Suite 300 814 Tyvola Road, Suite 126 Main Office: (819) 373-6881 Toronto, Ontario M2H 3N5 Charlotte, NC 28217 Customer Service: (888) 840-4720 Prepared by: Chemtrade Logistics Inc. Main Office: (704) 369-2480 Date Prepared: March 27, 2010 Customer Service: (877) 205-2903 For MSDS Info: (416) 496-5856 www.chemtradelogistics.com HAZARD RATINGS: WHMIS: CONTROLLED NFPA RATING HMIS RATING CLASS B6 HEALTH 2 HEALTH 2 D-2B FLAMMABILITY 1 FLAMMABILITY 1 F REACTIVITY 2 PHYSICAL HAZARD 2 SPECIFIC HAZARD W PERSONAL PROTECTION J PRODUCT INFORMATION: PRODUCT NAME: SODIUM HYDROSULFITE POWDERS & BLENDS CAS NUMBER: 7775-14-6 (for sodium hydrosulfite) (See SECTION 2) FORMULA: Na2S2O4 PRIMARY PRODUCT USE: Reducing agent SYNONYMS: Sodium Dithionite; Hydro; Sodium Hydrosulfite Powder; Hydro Powder; Sodium Hydrosulfite Powders & Blends; Sodium Sulfoxylate; Dithionous Acid; and Disodium Salt CHEMICAL FAMILY: Sulfite TRADE NAMES: V-BRITE®; VIRWITE®; VIRTEX®; & K-BRITE® This MSDS applies to Chemtrade’s V-BRITE®; VIRWITE®; VIRTEX® & K-BRITE® products using a 1 to 4 digit alphanumeric code (A through ZZZZ) or (1 – 9999) in any combination (e.g.
    [Show full text]
  • Safety Data Sheet
    Page 1/6 Safety Data Sheet According to OSHA and ANSI Printing date 01/31/2013 Reviewed on 08/04/2011 1 Identification of the substance/mixture and of the company/undertaking Product identifier Product name: Sodium hydrosulfite, tech grade Stock number: 33381 Details of the supplier of the safety data sheet Manufacturer/Supplier: Alfa Aesar, A Johnson Matthey Company Johnson Matthey Catalog Company, Inc. 30 Bond Street Ward Hill, MA 01835-8099 Tel: 800-343-0660 Fax: 800-322-4757 Email: [email protected] www.alfa.com Information Department: Health, Safety and Environmental Department Emergency telephone number: During normal hours the Health, Safety and Environmental Department at (800) 343-0660. After normal hours call Carechem 24 at (866) 928-0789. 2 Hazards identification Classification of the substance or mixture Classification according to Regulation (EC) No 1272/2008 GHS02 Flame Self-heat. 1 H251 Self-heating: may catch fire. GHS07 Acute Tox. 4 H302 Harmful if swallowed. Classification according to Directive 67/548/EEC or Directive 1999/45/EC Xn; Harmful R22: Harmful if swallowed. O; Oxidizing R7: May cause fire. R31: Contact with acids liberates toxic gas. Label elements Labelling according to Regulation (EC) No 1272/2008 The product is classified and labelled according to the CLP regulation. Hazard pictograms GHS02 GHS07 Signal word Danger Hazard-determining components of labelling: Sodium hydrosulfite Hazard statements H251 Self-heating: may catch fire. H302 Harmful if swallowed. Precautionary statements P280 Wear protective gloves/protective clothing/eye protection/face protection. P235+P410 Keep cool. Protect from sunlight. P301+P312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
    [Show full text]