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7681-38-1

Name Sodium bisulfate
CAS 7681-38-1
EINECS(EC#) 231-665-7
Molecular Formula HNaO4S
MDL Number MFCD00003531
Molecular Weight 120.06
MOL File 7681-38-1.mol

Chemical Properties

Appearance off-white granules, crystals or powder
Melting point  315 °C
density  2.1
form  Granules
color  White to light yellow
Stability: Stable. Incompatible with strong bases, strong oxidizing agents, sodium carbonate, sodium hypochlorite. May decompose upon exposure to moist air or water.
Water Solubility  soluble in 2 parts H2O, 1 part boiling H2O; decomposes in alcohol to sodium sulfate and H2SO4 [MER06]
Sensitive  Hygroscopic
Merck  13,8658
InChI InChI=1S/Na.H2O4S.H/c;1-5(2,3)4;/h;(H2,1,2,3,4);
InChIKey TTXJTWGBBUPRBF-UHFFFAOYSA-N
SMILES S(O)(O)(=O)=O.[NaH]
Uses
Flux for decomposing minerals; substitute for sulfuric acid in dyeing; disinfectant; manufacture of sodium hydrosulfide, sodium sulfate, and soda alum; liberating CO 2 in carbonic acid baths, in thermophores; carbonizing wool; manufacture of magnesia cements, paper, soap, perfumes, foods, industrial cleaners, metal pickling compounds; lab reagent.
CAS DataBase Reference 7681-38-1(CAS DataBase Reference)
EPA Substance Registry System 7681-38-1(EPA Substance)

Safety Data

Hazard Codes  Xi
Risk Statements 
R41:Risk of serious damage to eyes.
Safety Statements 
S24:Avoid contact with skin .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RIDADR  3260
WGK Germany  1
RTECS  VZ1860000
3
TSCA  Yes
HazardClass  8
PackingGroup  II
HS Code  28331900
Safety Profile
A corrosive irritant to skin, eyes, and mucous membranes. Mutation data reported. Reacts with moisture to form sulfuric acid. Uxtures with calcium hypochlorite + starch + sodium carbonate explode when compressed. Violent reaction with acetic anhydride + ethanol may lead to ignition and a vapor explosion. Incompatible with calcium hypochlorite. When heated to decomposition it emits toxic fumes of SO, and NanO. See also SULFATES.

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