Course Presentation for B.Sc. Chemistry (H) SEM VI
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Staining Wood and Natural Materials Using PRO Washfast Water Based
Staining Wood and Natural Materials using PRO WashFast Water-Based Dyes Please read directions carefully before starting. Many materials, whose surface is only slightly wettable, may be colored with water-based (water soluble) dyes resulting in colored surfaces that do not hide the grain of the wood or the character of the substrate. This process is also suitable for the coloration of feathers, retouching wool tapestries and wool or nylon carpeting. Basically anything that does not have the high wash fastness requirements of wearable clothing fabrics. Wet fastness is good. Always do test samples before working on a large project. For additional information visit our web site at www.prochemicalanddye.com. Wear rubber gloves, apron, or old clothes. Utensils used for dyeing should never be used for food preparation. Procedure: 1. Dissolve the PRO WashFast Acid dye by placing 1 tsp (2.5 gm) of the dye in a one cup (250 ml) Pyrex container. Add 1 or 2 tsp (5 or 10 ml) of boiling water to make a paste. Gradually add more boiling water with continuous stirring to the 2 cup (125 ml) mark. Set aside to cool. 2. When cooled to room temperature, fill to one cup (250 ml) mark with denatured grain alcohol or Isopropyl rubbing alcohol (90%). Store in re-sealable glass container. 3. Apply to surface of substrate with foam brush or immerse object into dye solution for several minutes. Air dry and repeat procedure as often as needed for deeper color allowing previous coat to dry thoroughly. 4. After thorough drying, wood and similar materials may be coated to seal in the color and give lasting protection to the wood itself. -
New Facile and Sensitive Methods for the Estimation of Telmisatran Y
J. Curr. Chem. Pharm. Sc.: 4(1), 2014, 30-33 ISSN 2277-2871 NEW FACILE AND SENSITIVE METHODS FOR THE ESTIMATION OF TELMISATRAN Y. KRANTI KUMAR, K. VANITHA PRAKASH* and GUTHI LAVANYA Department of Pharmaceutical Analysis, SSJ College of Pharmacy, V. N. Pally, Gandipet, HYDERABAD – 500075 (A.P.) INDIA (Received : 26.10.2013; Accepted : 03.11.2013) ABSTRACT Two simple, accurate, rapid and sensitive Methods (A and B) have been developed for the estimation of Telmisatran in its pharmaceutical dosage form. The method A is based on the formation of yellow colored chromogen, due to reaction of Telmisatran with Alizarin red dye. The formation of ion association complexes of the drug with dyes in acidic phthalate buffer of pH 2.8 was followed by their extraction in chloroform, which exhibits λmax at 423 nm. The method B is based on the formation of golden yellow colored chromogen due to reaction of Telmisatran with Bromophenol blue dye. The formation of ion association complexes of the drug with dyes in acidic phthalate buffer of pH 2.8 was followed by their extraction in chloroform, which exhibits λmax at 416 nm. The absorbance-concentration plot is linear over the range of 100- 150 mcg/mL for method A and 20-50 mcg/mL for method B. Results of analysis for all the methods were validated statistically and by recovery studies. The proposed methods are precise, accurate, economical and sensitive for the estimation of Telmisatran in bulk drug and in its tablet dosage form. Key words: Telmisatran, Alizarin red, Bromophenol blue. INTRODUCTION Telmisartan is an angiotensin II receptor antagonist used in the management of hypertension. -
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J. Indonesian Trop. Anim. Agric. 39(3):188-193, September 2014 ISSN 2087-8273 THE CHROME-TANNED GOAT LEATHER FOR HIGH QUALITY OF BATIK W. Pancapalaga1,2, V. P. Bintoro1, Y. B. Pramono1 and S. Triatmojo3 1Doctorate Program of Animal Science, Faculty of Animal and Agricultural Sciences, Diponegoro University, Tembalang Campus, Semarang 50275 - Indonesia 2Permanent Address: Faculty of Agriculture and Animal Sciences, Malang Muhammadiyah University, Jl. Raya Tlogomas No. 246, Malang 65148 - Indonesia 3Faculty of Animal Science, Gajah Mada University, Jl. Fauna, Bulaksumur, Yogyakarta 55281 - Indonesia Corresponding E-mail: [email protected] Received July 03, 2014; Accepted August 24, 2014 ABSTRAK Penelitian bertujuan untuk mengevaluasi kualitas batik kulit yang disamak dengan krom. Penelitian dilakukan secara bertahap dengan tahap pertama bertujuan untuk mengevaluasi natrium silika sebagai bahan pelepas lilin batik pada kulit samak krom. Penelitian menggunakan rancangan acak lengkap (RAL) sebagai perlakuan adalah kosentrasi natrium silika yaitu P1 = 0 , P2 = 2 g/l, P3 = 4 g/L dan P4 = 6 g/L diulang 9 kali. Penelitian tahap kedua bertujuan untuk mengevaluasi jenis bahan warna yang digunakan dalam pewarnaan metode batik pada kulit kambing samak krom. Penelitian menggunakan rancangan acak lengkap (RAL) sebagai perlakuan adalah jenis bahan pewarna yaitu P'1 = asam , P'2 = indigosol, P'3 = napthol dan P'4 = remazol diulang 9 kali. Berdasarkan hasil penelitian penggunaan natrium silika kosentrasi 2 g/L menghasilkan prosentasi lilin yang terlepas sebesar 91,4 % serta tidak menurunkan kualitas kulit samak krom. Jenis bahan warna asam dan napthol memberikan kuat rekat dan kecerahan warna terbaik serta ketahanan cuci, air, keringat, tekuk dan gosok yang terbaik yaitu 4/5 sampai 5 pada skala abu abu. -
Separation of Hydroxyanthraquinones by Chromatography
Separation of hydroxyanthraquinones by chromatography B. RITTICH and M. ŠIMEK* Research Institute of Animal Nutrition, 691 23 Pohořelice Received 6 May 1975 Accepted for publication 25 August 1975 Chromatographic properties of hydroxyanthraquinones have been examined. Good separation was achieved using new solvent systems for paper and thin-layer chromatography on common and impregnated chromatographic support materials. Commercial reagents were analyzed by the newly-developed procedures. Было изучено хроматографическое поведение гидроксиантрахинонов. Хорошее разделение было достигнуто при использовании предложенных новых хроматографических систем: бумажная хроматография смесью уксусной кислоты и воды на простой бумаге или бумаге импрегнированной оливковым мас лом, тонкослойная хроматография на целлюлозе импрегнированной диметилфор- мамидом и на силикагеле без или с импрегнацией щавелевой или борной кислотами. Anthraquinones constitute an important class of organic substances. They are produced industrially as dyes [1] and occur also in natural products [2]. The fact that some hydroxyanthraquinones react with metal cations to give colour chelates has been utilized in analytical chemistry [3]. Anthraquinone and its derivatives can be determined spectrophotometrically [4—6] and by polarography [4]. The determination of anthraquinones is frequently preceded by a chromatographic separation the purpose of which is to prepare a chemically pure substance. For chromatographic separation of anthraquinone derivatives common paper [7—9] and paper impregnated with dimethylformamide or 1-bromonaphthalene has been used [10, 11]. Dyes derived from anthraquinone have also been chromatographed on thin layers of cellulose containing 10% of acetylcellulose [12]. Thin-layer chromatography on silica gel has been applied in the separation of dihydroxyanthraquinones [13], di- and trihydroxycarbox- ylic acids of anthraquinones [14] and anthraquinones occurring in nature [15]. -
Redalyc.JEAN-JACQUES COLIN
Revista CENIC. Ciencias Biológicas ISSN: 0253-5688 [email protected] Centro Nacional de Investigaciones Científicas Cuba Wisniak, Jaime JEAN-JACQUES COLIN Revista CENIC. Ciencias Biológicas, vol. 48, núm. 3, septiembre-diciembre, 2017, pp. 112 -120 Centro Nacional de Investigaciones Científicas Ciudad de La Habana, Cuba Available in: http://www.redalyc.org/articulo.oa?id=181253610001 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Revista CENIC Ciencias Biológicas, Vol. 48, No. 3, pp. 112-120, septiembre-diciembre, 2017. JEAN-JACQUES COLIN Jaime Wisniak Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel 84105 [email protected] Recibido: 12 de enero de 2017. Aceptado: 4 de mayo de 2017. Palabras clave: almidón-yodo, fermentación, fisiología vegetal, índigo, jabón, respiración de plantas, yodo. Key words: fermentation, iodine, indigo, plant physiology, plant respiration, soap, starch-iodine. RESUMEN. Jean-Jacques Colin (1784-1865), químico francés que realizó estudios fundamentales acerca de la fisiología de plantas, en particular germinación y respiración; el fenómeno de la fermentación, y la química del yodo durante la cual descubrió junto con Gaultier de Claubry, que el yodo era un excelente reactivo para determinar la presencia de almidón aun en pequeñas cantidades. Estudió también el efecto de diversas variables en la fabricación del índigo y jabones de diversas naturalezas. ABSTRACT. Jean-Jacques Colin (1784-1865), a French chemist, who carried fundamental research on plant physiology, particularly germination and fermentation; the phenomenon of fermentation and the chemistry of iodine, during which he discovered, together with Gaultier de Claubry, the ability of iodine to detect starch even in very small amounts. -
CIBA Acid F.Pdf
./ Fiber Types · Safety InUse• Ciba Washfast Acid Dyes may be used on the Although no chemical is entirely freefrom hazard, · following fiber types: these products will pres�nt a low to no health risk, • Wool (includirg Cashmere, Alpaca, Angora, provided that good standards of studio· hygiene are and other protein fi�rs) observed in their use and storage. All persons. • Silk handling them should take precautions to avoid Techniques• Nylon· accidental ingestion, inhalation, skin and eye contact and should be aware of any limitations of use of specific products. While dyes and the • high temperature immersion chemicals associated with their use are not highly • handpainting silkscreening ,. toxic, they are industrtal chemicals and should be • block prtnting handled with care. Chemical productsshould not • airbrushing be allowed to get into the eyes, but 1f they should • warp painting by accident, wash eyes with clean water and then_ • resist (paste resist, gutta, bound) obtain medical treatment. Prolonged or repeated • batch dyeing (tie dyeing, rainbow dyeing) contact with skin should be avoided. Wear rubber gloves and use implements to stir solutions and ColorSeereverse Availablefor further deta ils.· dyebaths. Inhalation of'dusts .should be avoided by careful handling of powders. If the dyes are handled where particles may become airborne, a Yellow, Gold Yellow, Scarlet, Fuchsia, Turquoise, suitable dust respirator should be worn. Navy, Brown, Black, Green, Blue, and Violet. Obviously, chemicals slJ.ould ,not be taken -WhatNote: These Youdyes- Willare Need completely intennixable. internally, and the use of food, drink and smoking materials should be prohibited where chemicals are employed. The utensils used fordyeing should Stainless steel, enamel, plastic or glass measuring. -
Dyeing of Polyamide Fibres
Dyeing of Polyamide Fibres Polyamides • Nylon a Polyamide, it is a condensation polymers. The formation of a polyamide is same as the synthesis of a simple amide. One prominent difference is that both the amine and the acid monomer units each have two functional groups ‐ one on each side of the molecule. In this polymer, the repeating units are identical. • Nylon is made from 1,6‐diaminohexane and adipic acid by elimination of water molecules (‐H from the amine and ‐OH from acid as shown in red on the graphic). • A simple representation is ‐[A‐B‐A‐B‐A‐B]‐. Nylon 66 • Nylon 66, was discovered in 1931 by Wallace Cruthers at DuPont. It was the first fully synthetic fiber produced. It was introduced to women in nylon stockings in 1939 with huge success. During World War II, nylon production was used to make parachutes and other items needed by the military. • Nylon is very similar in structure to the protein polyamides in silk and wool as shown earlier, but is far stronger, more durable, more chemically inert, and cheaper to produce as compared to the natural fibers. Polyamide Fibres • It’s a Nylon fibre we generally know. • It consists of multiples of six carbon chains, in which half the end of carbon being converted to carbonyl and other half to imino nitrogen. • It is thermoplastic , is sensitive to heat and tension applied in various texturizing processes. • Total temperature‐tension history of yarn determines the degree of orientation in textured yarns. Dyeing of Polyamide Fibres • Acid, metal complexes, disperse reactive and disperse dyes are the important classes of dyes used in dyeing of nylon. -
Ashnagar 1.Pmd
Biosciences, Biotechnology Research Asia Vol. 4(1), 19-22 (2007) Isolation and identification of 1,2-dihydroxy-9,10- anthraquinone (Alizarin) from the roots of Maddar plant (Rubia tinctorum) A. ASHNAGAR¹*, N. GHARIB NASERI² and A. SAFARIAN ZADEH¹ ¹School of Pharmacy, Ahwaz Jundi Shapour Univ. of Medical Sciences, Ahwaz (Iran) ²Ahwaz Faculty of Petroleum Engineering, Petroleum University of Technology, Ahwaz (Iran) (Received: March 02, 2007; Accepted: April 03, 2007) ABSTRACT The roots of madder (Rubia tinctorum) are source of anthraquinone dyes with alizarin being the main component. Free alizarin (I) is present in madder root in only small quantities, most of it is present as its glycoside i.e. ruberythric acid(III) On the basis of the importance of alizarin, in this research, it was isolated, purified and its structure was confirmed by various spectra. Maceration of the powdered madder roots in various polar and non-polar solvents, as well as Soxhlet extraction resulted in the formation of a reddish solid material (5.2% and 14.2% yield, respectively). Successive TLC and column chromatography of the solid material on silica gel with methanol as the mobile phase, gave three fractions with Rf = 0.21, 0.48 and 0.68. The fraction with 1 13 Rf = 0.68 was the major one. HNMR, CNMR, IR, UV and Mass spectra of this fraction were taken. On the basis of the results obtained from the spectra, the chemical structure of alizarin was determined and confirmed. Keywords: Alizarin, 1,2-dihydroxy-9,10-anthraquinone, 1,2-dihydroxy-9,10-anthracenedione, Rubia tinctorum, madder roots, ruberythric acid. -
Development of Monitoring Technology for Environmental Radioactivity
KAERI/RR-2037/99 KR0000197 Development of Environmental Radiation Protection Technology Development of Monitoring Technology for Environmental Radioactivity 31/40 Please be aware that all of the Missing Pages in this document were originally blank pages KAERI/RR-2037/99 2=1 # a Development of Environmental Radiation Protection Technology Development of Monitoring Technology for Environmental Radioactivity 2000^ : 0| o| I. II- EML ^-A>^ B \f $14. III. o) 4^0. 9Sr Tc-99 )14^H Tc-991- Tc-95m ^^^>* if?!: 7l^^ TBP TBP ^-^^i TEVA ?l^-^ 7] (Quantulus 1220)-!: 44^ *1^^ Pu-241 ^1-Jl £^7l^ 6}-g-«l-^ ^^^ PSA ^^1 Pu-241 a^^l^^: ^1-g-^^ FOM (figure of-merit)7> Pu-241 31# ^fl^l- S^^>^4. FOM° (Ultima gold-AB) ^4^ ^^^^4. S^ ^ 2]^^-€ Pu-241 ^^£ Pu-241 5H ^^^ PERALS® -g-nfl PERALS® PSA 7]^^; 7>*1 ^^]^^-7)]^7l(Quantulus 1220™, Wallac Rn-222 ^ Ra Rn-222 2. on-line «H3-3|i£ £^7l#-ir 7fl#§|-7] $«H ion chromatography£f <SH^% U-A>^^#7|1- ^l-g-^ «j-A}^ ^1#7]1- 7fl^Sl-^4. ion chromatographyS £|M 4^ 14^4^ ^^ #4^ 3. : 7fl#§V7| ^§1] Pu-242 ^«fi^ pH U-232, Th-229 ^ Am-243 Talvitie IV. (Sr-Spec)i 92 % oR1"^ fe^ ^t^: ^.$1^ £lfe Ba, Ca, Y 4. 111 7} %$\ £#*l|3. DC18C6 0.1 Mi tflsfl DNNS 25 mM ^£7} JL 6I *H 90 %°]$£\ ^S^-f- 4i^ > 1 : 5 - 1 ^^4J^A], ^ aflui*l<g<3 (20 - 500 keV) ^A^ ^S 90 % °1&JL 90Y^ 34.2 %, ne)jL 89Sr^r 50.6 % ^1-1^1^^(500 - 1400 keV)iAi^ 7fl#^^^: ^Sr0] 1.7 %, 90Y7} 49.7 %, nelJL 89Sr^l 44.9 % 3£t- .^-^4. -
University of Warwick Institutional Repository
CORE Metadata, citation and similar papers at core.ac.uk Provided by Warwick Research Archives Portal Repository University of Warwick institutional repository: http://go.warwick.ac.uk/wrap This paper is made available online in accordance with publisher policies. Please scroll down to view the document itself. Please refer to the repository record for this item and our policy information available from the repository home page for further information. To see the final version of this paper please visit the publisher’s website. Access to the published version may require a subscription. Author(s): Hendrik Schäfer, Natalia Myronova and Rich Boden Article Title: Microbial degradation of dimethylsulphide and related C1- sulphur compounds: organisms and pathways controlling fluxes of sulphur in the biosphere Year of publication: 2010 Link to published version: http://dx.doi.org/ 10.1093/jxb/erp355 Publisher statement: This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Journal of Experimental Botany following peer review. The definitive publisher-authenticated version Schäfer, H. et al. (2010). Microbial degradation of dimethylsulphide and related C1-sulphur compounds: organisms and pathways controlling fluxes of sulphur in the biosphere. Journal of Experimental Botany, Vol. 61(2), pp. 315-334 is available online at: http://jxb.oxfordjournals.org/cgi/content/full/61/2/315 Microbial degradation of dimethylsulfide and related C1-sulfur compounds: organisms and pathways controlling fluxes of sulfur in the biosphere Hendrik Schäfer*1, Natalia Myronova1, Rich Boden2 1 Warwick HRI, University of Warwick, Wellesbourne, CV35 9EF, UK 2 Biological Sciences, University of Warwick, Coventry, CV4 7AL, UK * corresponding author Warwick HRI University of Warwick Wellesbourne CV35 9EF Tel: +44 2476 575052 [email protected] For submission to: Journal of Experimental Botany 1 Abstract 2 Dimethylsulfide (DMS) plays a major role in the global sulfur cycle. -
Colour and Textile Chemistry—A Lucky Career Choice
COLOUR AND TEXTILE CHEMISTRY—A LUCKY CAREER CHOICE By David M. Lewis, The University of Leeds, AATCC 2008 Olney Award Winner Introduction In presenting this Olney lecture, I am conscious that it should cover not only scientific detail, but also illustrate, from a personal perspective, the excitement and opportunities offered through a scientific career in the fields of colour and textile chemistry. The author began this career in 1959 by enrolling at Leeds University, Department of Colour Chemistry and Dyeing; the BSc course was followed by research, leading to a PhD in 1966. The subject of the thesis was "the reaction of ω-chloroacetyl-amino dyes with wool"; this study was responsible for instilling a great enthusiasm for reactive dye chemistry, wool dyeing mechanisms, and wool protein chemistry. It was a natural progression to work as a wool research scientist at the International Wool Secretariat (IWS) and at the Australian Commonwealth Scientific Industrial Research Organisation (CSIRO) on such projects as wool coloration at room temperature, polymers for wool shrink-proofing, transfer printing of wool, dyeing wool with disperse dyes, and moth-proofing. Moving into academia in 1987 led to wider horizons bringing many new research challenges. Some examples include dyeing cellulosic fibres with specially synthesised reactive dyes or reactive systems with the objective of achieving much higher dye-fibre covalent bonding efficiencies than those produced using currently available systems; neutral dyeing of cellulosic fibres with reactive dyes; new formaldehyde-free crosslinking agents to produce easy-care cotton fabrics; application of leuco vat dyes to polyester and nylon substrates; cosmetic chemistry, especially in terms of hair dyeing and bleaching; security printing; 3-D printing from ink-jet systems; and durable flame proofing cotton with formaldehyde-free systems. -
Tub Dyeing Basics Step by Step Instructions on the Next Page G with Fiber Reactive Dyes
tub dyeing basics Step by step instructions on the next page g with Fiber Reactive Dyes Use this method to dye fabric or clothing, made of natural fibers one uniform or solid color. Also called Garment Dyeing or Vat Dyeing, this method can also be done in a washing machine. Fiber Reactive Dye is the dye of choice for all cellulose (plant) fibers, like cotton, Rayon, hemp, linen, Tencel®, Modal®, bamboo, etc. (For dyeing silk, wool and other protein fibers, see Dyeing Wool and Silk with Fiber Reactive Dyes on our website) The chemical bond of these dyes is permanent, so once all the excess dye is washed out an infant can chew on the fabric and it will not come off! Fiber Reactive Dyes work in lukewarm water so these directions can also be used to dye batik (waxed) fabrics in successive colors without fear of melting the wax. WHAT You’ll need: SALT & SODA ASH REQUIREMENTS • Fiber Reactive Dye • A bucket large enough The amount of Non-Iodized Salt and Soda Ash are for your item to move a function of the amount of water used. For each • Soda Ash around in, or a top pound of dry fabric you will need about 3 gallons of • Non-Iodized Salt loading washing machine warm water. The water must cover the fabric with • Urea (optional) • Pitcher & cup enough room for thorough, tangle-free stirring; oth- erwise you get uneven dyeing and streaks. For each • Calsolene Oil (optional) • Measuring cups 1½ gallons of water use 1½ cups of Non-Iodized • Synthrapol • Spoons Salt and 1/6 cup of Soda Ash.