Sodium dihydrogen phosphate

Basic Information

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CAS Number

7632-05-5

Molecular Formula

H2NaO4P

Molecular Weight

121.99 g/mol

EINECS

231-558-5

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Agricultural Chemicals Pesticides Insecticides

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Melting Point

200 deg C (decomposes)

Boiling Point

158ºC at 760 mmHg

Density

1.40 g/mL at 20 °C

SMILES

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OP(=O)(O)[O-].[Na+]

InChI

InChI=1S/Na.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1

InChIKey

AJPJDKMHJJGVTQ-UHFFFAOYSA-M

LogP

0.38600

Complexity

61.9

Synonyms & References

English

Phosphoric acid, sodium salt (1:)
phosphoric acid, sodium salt
Phosphoric acid/sodium,(1:x) salt
C018279
Fleet enema
p-Buffer
Phosphoric acid, disodium salt, 32p-labeled
TAINFUCHEM: phosphoric acid, sodium salt
Sodium phosphate
Phosphoric acid
Phosphoric acid,disodium salt,32p-labeled
sodium,(1:x) salt

EC Number

231-558-5

Customs Code

2835291000

FAQ

What are the physical and chemical properties of Sodium dihydrogen phosphate (CAS: 7632-05-5)?

Sodium dihydrogen phosphate (CAS: 7632-05-5) is a white crystalline solid with a molecular weight of 120.04 g/mol. It has a solubility of 142 g/100 mL water at 25°C and is slightly soluble in ethanol. Chemically, it is an ionic compound that reacts with bases to form sodium phosphate and with acids to release phosphoric acid. It is stable under normal conditions but should be stored in a cool, dry place away from direct sunlight.

How is Sodium dihydrogen phosphate (CAS: 7632-05-5) typically synthesized?

Sodium dihydrogen phosphate is typically synthesized by reacting sodium hydroxide with phosphoric acid. The reaction can occur in a two-step process: first, sodium phosphate is formed, and then it is treated with hydrochloric acid to produce sodium dihydrogen phosphate. This process has a yield of around 95%, and no specific catalysts are required.

What industries use Sodium dihydrogen phosphate (CAS: 7632-05-5)?

Sodium dihydrogen phosphate (CAS: 7632-05-5) is widely used in the pharmaceutical, food, and chemical industries. It serves as a buffer in pharmaceutical formulations, a leavening agent in food processing, and a component in various chemical reactions. Additionally, it is used in the production of fertilizers and water treatment processes.

What precautions should be taken when handling Sodium dihydrogen phosphate (CAS: 7632-05-5)?

When handling sodium dihydrogen phosphate (CAS: 7632-05-5), it is important to wear appropriate personal protective equipment (PPE), including gloves and safety goggles. Store it in a cool, dry place away from direct sunlight and flammable materials. In case of a spill, use appropriate tools to clean it up and dispose of it according to local regulations. Always consult the Material Safety Data Sheet (MSDS) for detailed safety information.