Disodium dihydrogen diphosphate

Basic Information

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CAS Number

68915-31-1

Molecular Formula

H2Na2O7P2

Molecular Weight

221.94 g/mol

EINECS

272-808-3

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

Density

1.25

SMILES

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

InChI

InChI=1S/2Na.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2*+1;/p-2

InChIKey

GYQBBRRVRKFJRG-UHFFFAOYSA-L

LogP

3.02880

Complexity

143

Synonyms & References

English

Sodium Hexa meta phophate
SODIUM POLYPHOSPHATE EXTRA PURE
SODIUM POLYPHOSPHATE, CRYSTALS, + 80 MES H, 96%
SodiumHexametaphosphateFoodGrade&TechnicalGrade
SodiumHexametaphosphateGlassy
Polyphosphorsuren, Natriumsalze
Sodium hexametaphosphate
disodium [hydroxy(oxidanidyl)phosphoryl] hydrogen phosphate
Sodium polyphosphate
Glassy sodium phosphate
Sodium polyphosphate, amorphous
Polyphosphoric acids, sodium salts
SodiuM hexaMetaphosphate
SHMP

MDL Number

MFCD00136045

EC Number

272-808-3

FAQ

What is Disodium dihydrogen diphosphate (CAS: 68915-31-1)?

Disodium dihydrogen diphosphate, with the CAS number 68915-31-1, is a chemical compound commonly used as a buffer and stabilizer. Its chemical formula is Na2H2P2O7, and it exists as a white, water-soluble powder. It has a pH range of 4.5 to 5.5 and is known for its ability to maintain acidic conditions in various applications.

What are the main uses of Disodium dihydrogen diphosphate (CAS: 68915-31-1)?

Disodium dihydrogen diphosphate is widely used in pharmaceuticals, food processing, and industrial applications. It serves as a pH buffer in drug formulations, a leavening agent in baking, and a chelating agent in water treatment. It is also employed in laboratory research for maintaining stable chemical environments.

Is Disodium dihydrogen diphosphate (CAS: 68915-31-1) safe?

Disodium dihydrogen diphosphate is generally considered safe when handled properly. It is non-toxic in normal usage conditions, but direct contact with skin or eyes should be avoided. Safety guidelines recommend using appropriate personal protective equipment (PPE) during handling and following standard chemical safety protocols to ensure safe use in laboratories and industrial settings.

How should Disodium dihydrogen diphosphate (CAS: 68915-31-1) be stored?

Disodium dihydrogen diphosphate should be stored in a cool, dry place away from moisture and light. It is best kept in a sealed container at temperatures below 25°C and humidity levels below 60%. Proper storage ensures stability and prevents degradation of the compound over time.