Ammonium Thiosulfate

Basic Information

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CAS Number

7783-18-8

Molecular Formula

H8N2O3S2

Molecular Weight

148.21 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Amines

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Melting Point

150 °C

Boiling Point

Decomposes

Density

1.679 g/mL at 25 °C

Water Solubility

Soluble in water, slightly soluble in acetone. Insoluble in ethanol and diethyl ether.

Flash Point

Non-flammable

Solubility

H2O: very soluble(lit.)

SMILES

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[O-]S(=S)(=O)[O-].[NH4+].[NH4+]

InChI

1S/2H3N.H2O3S2/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)

InChIKey

XYXNTHIYBIDHGM-UHFFFAOYSA-N

LogP

1.84280

Complexity

82.6

Safety Information

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Stability

Stable. Hygroscopic.

Sensitiveness

Hygroscopic

Synonyms & References

English

Ammonium thiosulfate
AMMONIUM HYPOSULFITE
AMMONIUM THIOSULPHATE
ammohypo
ammoniumthiosulfate((nh4)2s2o3)
amthio
diammoniumthiosulfate
thio-sul
thiosulfuricacid(h2s2o3),diammoniumsalt
Thiosulfuricacid,diammoniumsalt
thiosulfuricacid[h2s2o3],diammoniumsalt
ammonium thiosulate
Aminonium Thiosulfate
Ammoniumthiosulfatewhitextl
AMMONIUM THIOSULFATE PURE
AMMONIUM THIOSULFATE CRYSTALLIZED STAB
AmmoniumThiosulfateH8N2O3S2
AmmoniumThiosulphate.PhotoGrade
AmmoniumThiocyanateNH4SCN
diazanium,dioxido-oxo-sulfanylidene-λ<sup>6</sup>-sulfane
mmonium thiosulfate
ALuMinon
Diammonium thiosulfate
AMMONIUMTHIOSULFATE
Thiosulfuric acid (H2S2O3), diammonium salt
BKH1729645
Thiosulfuric acid (H2S2O3), ammonium salt (1:2)
DSSTox_CID_9703
DSSTox_RID_78814
DSSTox_GSID_29703
XYXNTHIYBIDHGM-UHFFFAOYSA-N

MDL Number

MFCD00015965

Customs Code

2832300000

FAQ

What is Ammonium Thiosulfate (CAS: 7783-18-8)?

Ammonium thiosulfate is a chemical compound with the formula (NH4)2S2O3. It is a white, crystalline solid that is soluble in water. This compound is known for its reducing properties and is commonly used in various industrial and chemical applications. It is also referred to as ammonium sulphite in some regions.

What are the main uses of Ammonium Thiosulfate (CAS: 7783-18-8)?

Ammonium thiosulfate is primarily used in the textile industry for bleaching and dyeing processes. It also finds applications in photography, as a reducing agent, and in the production of dyes and pharmaceuticals. Additionally, it is used in water treatment and as a component in some agricultural chemicals.

Is Ammonium Thiosulfate (CAS: 7783-18-8) safe?

Ammonium thiosulfate is generally considered safe when handled properly. However, it can be harmful if inhaled, ingested, or in contact with skin or eyes. Safety measures include wearing protective gloves, goggles, and clothing. It is important to follow OSHA and EPA guidelines for safe use and disposal.

How should Ammonium Thiosulfate (CAS: 7783-18-8) be stored?

Ammonium thiosulfate should be stored in a cool, dry, and well-ventilated area away from direct sunlight. It is stable under normal storage conditions but should be kept in a sealed container to prevent moisture absorption. Avoid storage near incompatible substances such as strong oxidizers.