Sodium dithionite

Sodium dithionite Property

mp : 300 °C bp : 1390°C density : 2.13 storage temp. : Store at RT. solubility : 250 g/L (20°C) Water Solubility : 250 g/L (20 ºC) Sensitive : Moisture Sensitive Merck : 14,8626 Stability:: Stable, but air sensitive. Incompatible with strong acids, strong oxidizing agents, water, moisture. CAS DataBase Reference: 7775-14-6(CAS DataBase Reference)

Safety

Hazard Codes : Xn Risk Statements : 7-22-31 Safety Statements : 26-28-43-7/8-43E-28A RIDADR : UN 1384 4.2/PG 2 WGK Germany : 1 F : 1-10 HazardClass : 4.2 PackingGroup : II Hazardous Substances Data: 7775-14-6(Hazardous Substances Data)

Sodium dithionite Chemical Properties,Usage,Production

Chemical Properties White solid Usage Reducing agent for vat dyes,reducing hair bleaching agents,vat dyes printing auxiliaries, silk scouring and bleaching agents, coloring agents and objects stripping vat cleaning agent General Description Sodium dithionite is a whitish to light yellow crystalline solid having a sulfur dioxide-like odor. Sodium dithionite spontaneously heats on contact with air and moisture. This heat may be sufficient to ignite surrounding combustible materials. Sodium dithionite is soluble in water. Under prolonged exposure to fire or intense heat containers of Sodium dithionite may violently rupture. Sodium dithionite is used in dyeing and to bleach paper pulp. Reactivity Profile Inorganic reducing agents, such as Sodium dithionite, react with oxidizing agents to generate heat and products that may be flammable, combustible, or otherwise reactive. Their reactions with oxidizing agents may be violent. Sulfites and hydrosulfites (dithionites) can react explosively with strong oxidizing agents (sodium chlorite). Sulfites generate gaseous sulfur dioxide in contact with oxidizing acids and nonoxidizing acids. Health Hazard Fire will produce irritating, corrosive and/or toxic gases. Inhalation of decomposition products may cause severe injury or death. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution. Fire Hazard Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated.

Sodium dithionite Preparation Products And Raw materials

Raw materials ZINC Etanol ZINC HYDROSULFITE Sulfur dioxide ZINC HYDROXIDE SODIUM SULFITE HEPTAHYDRATE Sodium formate Methanol Sodium hydroxide Sodium metabisulfite

Preparation Products SODIUM DITHIONATE Vitamin B2 8-METHYLXANTHINE 4-Aminobenzyl alcohol 4-AMINORESORCINOL HYDROCHLORIDE 4.4'-DIAMINODIPHENYLAMINESULFATE 5-Fluoroindole-2-carboxylic acid Sodium salicylate 3-Aminophthalhydrazide (2,4-DIAMINOPTERIDIN-6-YL)METHANOL HYDROCHLORIDE HYDRATE Trimethylhydroquinone 4,5,6-TRIAMINOPYRIMIDINE 4-amino-1-naphthol Naphthol AS-OL BASIC BLUE 3 4-(1,2,3-THIADIAZOL-4-YL)ANILINE 4-Azaindole 5,6-DIAMINO-2,4-DIHYDROXYPYRIMIDINE SULFATE TRIFLUOROMETHYL SULFINYL CHLORIDE 1H-1,2,3-Triazolo[4,5-d]pyrimidin-7-amine 4,5,6-TRIAMINOPYRIMIDINE SULFATE Glyoxalbis(2-hydroxyanil) Riboflavin 8-BROMO-3-METHYL-3,7-DIHYDRO-PURINE-2,6-DIONE 5-Hydroxyanthranilic acid 8-AZAGUANINE N-(2,5-Dimethoxyphenyl)-2-hydroxydibenzofuran-3-carboxamide 2,6-Dihydroxy-3-methylpurine 3-(3-AMINOPHENYL)-2H-CHROMEN-2-ONE (2-CYANO-3-PYRIDINYL)CARBAMIC ACID, 1,1-DIMETHYL ETHYL ESTER 3-BROMO-4-(TRIFLUOROMETHOXY)PHENOL 3-Hydroxy-N-2-naphthyl-2-naphthamide 2,5-Diamino-4,6-dihydroxy-pyrimidine 3-(4-AMINO-PHENYL)-CHROMEN-2-ONE 3-BROMO-4-(TRIFLUOROMETHOXY)ANILINE Hexachlorophene Disperse Blue BGL 5-Aminouracil 5,6-Diamino-1-methyluracil 2-Amino-5-chlorobenzaldehyde

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