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HomeProduct name listAmmonium sulfite monohydrate

Ammonium sulfite monohydrate

  • CAS NO.:7783-11-1
  • Empirical Formula: H2O.H2O3S.2H3N
  • Molecular Weight: 134.16
  • MDL number: MFCD00150959
  • EINECS: 684-263-2
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-10-17 17:11:53
Ammonium sulfite monohydrate Structural

What is Ammonium sulfite monohydrate?

Chemical properties

colorless crystal(s); loses H2O and gradually oxidizes to (NH4)2SO4 when heated in air; hygroscopic; used in medicine, metal lubricants, as a chemical reducing agent [MER06] [HAW93]

Physical properties

White or pale yellow solution. Thermal decomposition. Soluble in water, slightly soluble in ethanol, hardly soluble in acetone. The relative density of the saturated solution is 1.1995 (20°C), which is alkaline. Strong corrosion to steel.

The Uses of Ammonium sulfite monohydrate

Ammonium sulfite monohydrate is used in caramel coloring in the food industry. It is also used in cosmetics as a hair straightening agent and a hair waving agent. It acts as a reducing agent in photography. Further, it is used in the production of bricks in order to use in blast furnace linings. In addition to this, it used in gas scrubbers.

The Uses of Ammonium sulfite monohydrate

Ammonium Sulfite is an additive used in the production of caramel.

Precautions

Air sensitive. Incompatible with strong oxidizing agents, ammonia and acids.

Properties of Ammonium sulfite monohydrate

Melting point: 60-70°C
Density  1.41 g/mL at 25 °C(lit.)
refractive index  1.515
storage temp.  Store below +30°C.
solubility  insoluble in ethanol, acetone
form  Crystalline
color  White
Specific Gravity 1.41
Water Solubility  Soluble in water. Insoluble in acetone and alcohol.
Sensitive  Air Sensitive
Merck  14,557

Safety information for Ammonium sulfite monohydrate

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
Precautionary Statement Codes P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P332+P313:IF SKIN irritation occurs: Get medical advice/attention.
P337+P313:IF eye irritation persists: Get medical advice/attention.

Computed Descriptors for Ammonium sulfite monohydrate

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