7783-11-1

Basic information

• Product Name: AMMONIUM SULFITE
• Synonyms: AMMONIUM SULFITE;Ammonium sulfite monohydrate, 92% min;Sulfurous acid diammonium·hydrate;Ammonium sulfite mon;Diammonium sulfite monohydrate;Sulfurous acid diammonium salt monohydrate;Sulfurous acid,diammonium salt, monohydrate (8CI,9CI);Ammonium sulfite monohydrate 92%
• CAS NO: 7783-11-1
• Molecular Formula: H2O.H2O3S.2H3N
• Molecular Weight: 134.16
• EINECS: 233-484-9
• Mol File: 7783-11-1.mol
• Article Data: 0

Chemical Properties

• Melting Point: 60-70°C
• Appearance: White/Crystalline
• Density: 1.41 g/mL at 25 °C(lit.)
• Refractive Index: 1.515
• Storage Temp.: Store below +30°C.
• Water Solubility: Soluble in water. Insoluble in acetone and alcohol.
• Sensitive: Air Sensitive
• Merck: 14,557
• CAS DataBase Reference: AMMONIUM SULFITE(CAS DataBase Reference)
• NIST Chemistry Reference: AMMONIUM SULFITE(7783-11-1)
• EPA Substance Registry System: AMMONIUM SULFITE(7783-11-1)

Safety Data

• Hazard Codes: Xi
• Statements: 31-36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• TSCA: Yes
• Hazardous Substances Data: 7783-11-1(Hazardous Substances Data)

Usage

Description

Ammonium Sulfite, also known as ammonium hydrogen sulfite, is an inorganic compound with the chemical formula (NH4)2SO3. It is a white crystalline solid that is soluble in water and has a slightly alkaline pH. Ammonium Sulfite is a versatile chemical with a wide range of applications across different industries.

Uses

Used in Food Industry:
Ammonium Sulfite is used as an additive in the production of caramel, a food coloring agent. It helps to achieve the desired color and consistency in caramel products.
Used in Cosmetics Industry:
In the cosmetics industry, Ammonium Sulfite monohydrate is used as a hair straightening agent and a hair waving agent. It helps to alter the structure of hair proteins, allowing for the desired styling effects.
Used in Photography:
Ammonium Sulfite acts as a reducing agent in photography. It is used in the development process of photographic films and prints, helping to reduce the silver halide crystals to metallic silver, which forms the image.
Used in Construction Industry:
Ammonium Sulfite is used in the production of bricks for blast furnace linings. It helps to improve the durability and performance of the bricks, making them suitable for high-temperature applications.
Used in Environmental Applications:
Ammonium Sulfite is used in gas scrubbers to remove harmful gases and pollutants from industrial emissions. It helps to neutralize and capture the contaminants, reducing their impact on the environment.

Precautions

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

InChI:InChI=1/2H3N.H2O3S.H2O/c;;1-4(2)3;/h2*1H3;(H2,1,2,3);1H2