Iron(II) sulfate http://gestis-en.itrust.de/nxt/gateway.dll/gestis_en/004450.xml?f=templa...
GESTIS Substance Database
Iron(II) sulfate
IDENTIFICATION Iron(II) sulfate Ferrous sulfate Ferrosulfate Iron monosulfate Iron vitriol Iron sulfate ZVG number: 4450 CAS number: 7720-78-7 anhydrous INDEX number: 026-003-00-7 EC number: 231-753-5 CAS number: 7782-63-0 heptahydrate INDEX number: 026-003-01-4 EC number: 231-753-5 CAS number: 13463-43-9 hydrate (about monohydrate) 10028-21-4 1,5-hydrate
CHARACTERISATION
SUBSTANCE GROUP CODE 137100 Iron compounds 131400 Sulfates, hydrogensulfates, disulfates
STATE OF AGGREGATION The substance is solid.
PROPERTIES Colour: white (anhydrous), light bluish or celadon (heptahydrate) Odour: odourless
CHEMICAL CHARACTERISATION Non-combustible solid. Freely soluble in water. Hygroscopic.
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Aqueous solution reacts acidic. Sensitive to light. Acute or chronic health hazards result from the substance. (see: chapter REGULATIONS).
FORMULA
FeSO4 FeO4S
Molar mass: 151,91 g/mol
TOXICOLOGY / ECOTOXICOLOGY
TOXICOLOGICAL DATA LD50 oral rat Value: 319 mg/kg Reference: Journal of Pediatrics. Vol. 69, Pg. 663, 1966. Source: 02071
ECOTOXICOLOGICAL DATA LC50 Fish (96 hours) Minimum: 0,41 mg/l Maximum: 48 mg/l Median: 4,45 mg/l Study number: 11 Reference: Decker, C., and R. Menendez 1975. Acute Toxicity of Iron and Aluminum to Brook Trout. W.Va.Acad.Sci. 46(2):159-167 EC50 Crustaceans (48 hours) Minimum: 7,2 mg/l Maximum: 7,2 mg/l Median: 7,2 mg/l Study number: 1 Reference: Khangarot, B.S., and P.K. Ray 1989. Investigation of Correlation Between Physicochemical Properties of Metals and Their Toxicity to the Water Flea Daphnia magna Straus. Ecotoxicol.Environ.Saf. 18(2):109-120 Iron sulfate, anhydrous Source: 02072 LC50 Fish (96 hours) Minimum: 20,8 mg/l Maximum: 51,2 mg/l Median: 36 mg/l Study number: 2 Reference: Office of Pesticide Programs 2000. Pesticide Ecotoxicity Database (Formerly:
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Environmental Effects Database (EEDB)). Environmental Fate and Effects Division, U.S.EPA, Washington, D.C. EC50 Crustaceans (48 hours) Minimum: 7,1 mg/l Maximum: 7,1 mg/l Median: 7,1 mg/l Study number: 1 Reference: Office of Pesticide Programs 2000. Pesticide Ecotoxicity Database (Formerly: Environmental Effects Database (EEDB)). Environmental Fate and Effects Division, U.S.EPA, Washington, D.C. Iron sulfate, Heptahydrate Source: 02072
PHYSICAL AND CHEMICAL PROPERTIES
MELTING POINT The substance decomposes when heated (see decomposition temperature).
DENSITY DENSITY Value: 2,84 g/cm³ anhydrous DENSITY Value: 1,89 g/cm³ heptahydrate DENSITY Value: 2,97 g/cm³ hydrate BULK DENSITY Value: ca. 600 kg/m³ heptahydrate BULK DENSITY Value: ca. 850 kg/m³ hydrate BULK DENSITY Value: 880 kg/m³ anhydrous
SOLUBILITY IN WATER Concentration: 256 g/l hydrate Temperature: 20 °C
pH-VALUE pH-value: 3 ... 4 Temperature: 20 °C Concentration: 50 g/l
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heptahydrate pH-value: 2,5 ... 3,8 Temperature: 20 °C Concentration: 50 g/l hydrate
HAZARDOUS REACTIONS Decomposition temperature: > 400 °C Thermal decomposition:: Water of crystallization is released with increasing temperature. Heptahydrate loses water of crystallization at > 60 deg. C Hydrate loses water of crystallization at ca. 300 deg. C Decompositon products: sulphur dioxide, sulphur trioxide, basic iron(III) sulphate iron oxides Hazardous chemical reactions:
The substance can react dangerously with: strong oxidizing agents strong bases
OCCUPATIONAL HEALTH AND FIRST AID
TOXIC EFFECTS Annotation: At present time the occupational health information for this substance is only available in german. Please consult our database in german.
FIRST AID Annotation: At present time the first aid information for this substance is only available in German. Please consult our database in German.
HANDLING AND USAGE
USAGE The substance is used as: - coagulant for water treatment - catalyst, e.g. for ammonia synthesis The substance is part of: - iron preparations The substance is used for the production of: - iron compounds and iron gall ink The substance is used for: - disinfection and deodorisation of refuse pits
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- wood preservation - etching of aluminium - detection of nitrites and nitrates The substance is used in: - crop protection - dye-works and tanneries - photography - veterinary medicine - lithography
TECHNICAL MEASURES - HANDLING Workplace: Provision of good ventilation in the working area. The floor must be acid resistant. Washing facility at the workplace required. Equipment: Use closed apparatus if possible. If release of the substance cannot be prevented, then it should be suctioned off at the point of exit. Consider emission limit values, a purification of waste gases if necessary. Label containers and pipelines clearly. Advice on safer handling: Take care to maintain clean working place. Do not leave container open. Sufficient ventilation must be guaranteed for refilling, transfer, or open use. Avoid spillage. Fill only into labelled container. Use acid resistant utensils. Avoid rising dust. Cleaning and maintenance: Use protective equipment while cleaning if necessary. Avoid dust formation. Dust formation that cannot be avoided must be collected regularly. Use a tested industrial vacuum cleaner or suction device. Do not raise dust while cleaning. Use of a blower for cleaning is not permitted. Alternative: clean damp. Only conduct maintenance and other work on or in the vessel or closed spaces after obtaining written permission.
TECHNICAL MEASURES - STORAGE Storage: Do not use any food containers - risk of mistake. Containers have to be labelled clearly and permanently. Store in the original container as much as possible. Keep container tightly closed. Recommended storage at room temperature. Store in a dry place. Protect from exposure to light. Protect from moisture. Substance is hygroscopic. Conditions of collocated storage: Storage class 10 - 13 (Other liquids and solids) Only substances of the same storage class should be stored together. Collocated storage with the following substances is prohibited: - Pharmaceuticals, foods, and animal feeds including additives. - Infectious, radioactive und explosive substances. - Strongly oxidizing substances of storage class 5.1A.
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Under certain conditions the collocated storage with the following sub-stances is permitted (For more details see TRGS 510 ): - Gases. - Flammable liquids of storage class 3. - Other explosive substances of storage class 4.1A. - Spontaneously flammable substances. - Substances liberating flammable gases in contact with water. - Oxidizing substances of storage class 5.1B. - Ammonium nitrate and preparations containing ammonium nitrate. - Organic peroxides and self reactive substances. - Combustible and non combustible acutely toxic substances of stora-ge classes 6.1A and 6.1B. The substance should not be stored with substances with which hazardous chemical reactions are possible.
TECHNICAL MEASURES - FIRE AND EXPLOSION PROTECTION Technical, constructive measures: Substance is non-combustible. Select fire and explosion prevention measures according to the other used substances.
ORGANISATIONAL MEASURES Instruction on the hazards and the protective measures using instruction manual ( TRGS 555 ) are required with signature if just more than one minor hazard was detected. Instruction must be provided before employment and then at a minimum of once per annum thereafter. Observe the restrictions on juvenile employment as defined in the "Jugendarbeitsschutzgesetz". Observe the restrictions on the employment of expectant and nursing mothers as defined in the "Mutterschutzverordnung".
PERSONAL PROTECTION Body protection: Depending on the risk, wear a tight, long apron and boots or suitable chemical protection clothing. Wear dust tight protective clothing. The protection clothing should be acid resistant. Respiratory protection: In an emergency (e.g.: unintentional release of the substance) respiratory protection must be worn. Consider the maximum period for wear. Respiratory protection: Particle filter P2 or P3, colour code white. Use insulating device for concentrations above the usage limits for filter devices, for oxygen concentrations below 17% volume, or in circumstances which are unclear. Eye protection: Sufficient eye protection must be worn. Wear glasses with side protection. Hand protection: Use protective gloves. The glove material must be sufficiently impermeable and resistant to the substance. Check the tightness before wear. Gloves should be well cleaned before being removed, then stored in a well ventilated location. Pay attention to skin care. Skin protection cremes do not protect sufficiently against the substance. The following information is valid for aqueous, saturated solutions of the salt. The following materials are suitable for protective gloves (Permeation time >= 8 hours): Natural rubber/Natural latex - NR (0,5 mm) (use non-powdered and allergen free products) Polychloroprene - CR (0,5 mm) Nitrile rubber/Nitrile latex - NBR (0,35 mm) Butyl rubber - Butyl (0,5 mm) Fluoro carbon rubber - FKM (0,4 mm) Polyvinyl chloride - PVC (0,5 mm)
The times listed are suggested by measurements taken at 22 °C and constant contact. Temperatures
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raised by warmed substances, body heat, etc. and a weakening of the effective layer thickness caused by expansion can lead to a significantly shorter breakthrough time. In case of doubt contact the gloves' manufacturer. A 1.5-times increase / decrease in the layer thickness doubles / halves the breakthrough time. This data only applies to the pure substance. Transferred to mixtures of substances, these figures should only be taken as an aid to orientation. Industrial hygiene: Foods, beverages and other articles of consumption must not be consumed at the work areas. Suitable areas are to be designated for these purposes. Avoid contact with skin. In case of contact wash skin. Avoid contact with eyes. In case of contact rinse the affected eye(s). Avoid contact with clothing. Contaminated clothes must be exchanged and cleaned carefully. Provide washrooms with showers and if possible rooms with separate storage for street clothing and work clothing. The skin must be washed with soap and water before breaks and at the end of work. Apply fatty skin-care products after washing.
DISPOSAL CONSIDERATIONS Hazardous waste according to Waste Catalogue Ordinance (AVV). If there is no way of recycling it must be disposed of in compliance with the respective national and local regulations.
Collection of small amounts of substance: Collect in container for toxic, inorganic residues and heavy metal salts and their solutions. Collection vessels must be clearly labelled with a systematic description of their contents. Store the vessels in a well-ventilated location. Entrust them to the appropriate authorities for disposal.
ACCIDENTAL RELEASE MEASURES Wear respiratory protection, eye protection, hand protection and body protection (see chapter Personal Protection). Carefully sweep up, gather and remove. Avoid rising dust. Afterwards ventilate area and wash spill site.
Endangerment of watert: Low hazard to waters. Inform the responsible authorities when very large quantities get into water, drainage, sewer, or the ground.
FIRE FIGHTING MEASURES Instructions: Substance is incombustible. Select fire fighting measures according to the surrounding conditions. In case of ambient fire: Cool surrounding containers with water spray. If possible, take container out of dangerous zone. Rise in pressure and risk of bursting when heating. Special protective equipment: Ambient fire may liberate hazardous vapours or decomposition products. Sulphuric oxides Wear self-contained breathing apparatus. In case of violent hazardous effect: Wear a special tightly sealed suit.
REGULATIONS Classification:
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Acute toxicity, Category 4, oral; H302 Eye irritation, Category 2; H319 Skin irritation, Category 2; H315
Signal Word: "Warning" Hazard Statement - H-phrases: H302: Harmful if swallowed. H319: Causes serious eye irritation. H315: Causes skin irritation. Precautionary Statement - P-phrases: P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P302+P352: IF ON SKIN: Wash with plenty of soap and water. Manufacturer's specification by Merck Source: 01211 The substance is listed in appendix VI, table 3.1 of CLP regulation. The given classification can deviate from the listed classification, since this classification is to be complemented concerning missing or divergent danger classes and categories for the respective substance. Source: 99999
GHS-CLASSIFICATION OF MIXTURES Specific Concentration Limits: Skin Irrit. 2; H315: C >= 25 % The general concentration limits from Annex 1 of the Regulation (EU) 1272/2008 are to be used for possible further available substance classifications. iron(II) sulfate, heptahydrate Source: 99999
EUROPEAN CLASSIFICATION Xn; R22 Xi; R36/38
Xn Harmful
Risk phrases (R-phrases): R 22 Harmful if swallowed R 36/38 Irritating to eyes and skin EU classification according to GHS regulation, appendix VI, table 3.2 Source: 07501
CLASSIFICATION OF MIXTURES Scope: iron(II) sulfate, anhydrous Source: 99999 Specific Concentration Limits:
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Xi; R38: C >= 25 % The general concentration limits from Preparation Directive 1999/45/EU are to be used for possible further available substance classifications. Scope: heptahydrate Source: 07501
WORKPLACE LABELLING ACCORDING TO GERMAN ASR A1.3 The workplace labelling still refers to the old hazard classification, because ASR A1.3 has not yet been converted to GHS. Warning label:
Caution - harmful or irritant material
Precept label:
Use safety goggles
Wear safety gloves
GERMAN WATER HAZARD CLASS Substance No: 514 WGK 1 - low hazard to waters Classification according to the Administrative Regulation of Substances Hazardous to Water (VwVwS)
TECHNICAL INSTRUCTIONS ON AIR QUALITY CONTROL (TA LUFT) Chapter 5.2.1 Overall Dust, including fine dust The emissions of dust in the exhaust gas are not allowed to exceed the following values: Mass flow: 0,20 kg/hr or Mass concentration: 20 mg/m³ The mass per unit volume of 0,15 g/m3 in exhaust gas is not allowed to be exceeded also on observance or lower deviation of a mass flow of 0,20 kg/h.
TRANSPORT REGULATIONS Not subject to transport regulations.
RESTRICTIONS OF USE / BANS OF USE Directives on Safety in School (BGR/GUV-SR 2003) Activity ban for pupils till grade 4 (form) inclusive. Substance list to GUV-SR 2004 (as of 11.2010)
FURTHER REGULATIONS TRGS 200 Einstufung und Kennzeichnung von Stoffen, Zubereitungen und Erzeugnissen; Ausgabe Oktober 2011
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TRGS 201 Einstufung und Kennzeichnung bei Tätigkeiten mit Gefahrstoffen; Ausgabe Oktober 2011
TRGS 400 Gefährdungsbeurteilung für Tätigkeiten mit Gefahrstoffen; Ausgabe Dezember 2010; geändert und ergänzt September 2012
TRGS 555 Betriebsanweisung und Information der Beschäftigten; Ausgabe Januar 2013
TRGS 600 Substitution; Ausgabe August 2008 TRGS 401 Gefährdung durch Hautkontakt, Ermittlung - Beurteilung - Maßnahmen; Ausgabe Juni 2008; berichtigt Februar 2010 TRGS 500 Schutzmaßnahmen; Ausgabe Januar 2008, ergänzt Mai 2008
TRGS 510 Lagerung von Gefahrstoffen in ortsbeweglichen Behältern; Ausgabe Oktober 2010
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