Phosphoric acid, disodium salt, dihydrate (8CI,9CI)

Basic Information

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CAS Number

10028-24-7

Molecular Formula

H5Na2O6P

Molecular Weight

177.99 g/mol

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

243-245 ºC

Solubility

H2O: 0.5 M at 20 °C, clear, colorless

SMILES

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

InChI

1S/2Na.H3O4P.2H2O/c;;1-5(2,3)4;;/h;;(H3,1,2,3,4);2*1H2/q2*+1;;;/p-2

InChIKey

KDQPSPMLNJTZAL-UHFFFAOYSA-L

LogP

-0.18080

Complexity

46.5

Safety Information

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Stability

Stable. Incompatible with strong oxidizing agents.

Synonyms & References

English

Disodium hydrogenphosphate dihydrate
Sodium phosphate dibasic dihydrate
Sodium hydrogenphosphate dihydrate
disodium phosphate dihydrate
Sodium phosphate
Disodium phosphate
DSP
DSPA
FEMA 2398
BioChemica
BUFFER SOLUTION
DISODIUM PHOSHATE
SEC-SODIUM PHOSPHATE
EMSURE?, For Analysis
SODIUM HYDROGENHOSHATE
Disodium hydrogen phosphate dihydrate
Phosphoric acid, disodium salt, dihydrate
di-Sodium hydrogen phosphate dihydrate
Sodium phosphate, dibasic, dihydrate
94255I6E2T
Sodium phosphate dibasic dihydrate, 99+%, for HPLC
Sodium phosphate dibasic dihydrate, 98+%, for analysis
Dinatrii phosphas dihydricus
2Na.HPO4.2H2O
Disodium

MDL Number

MFCD00149181

Customs Code

28352200

FAQ

What are the physical and chemical properties of Phosphoric acid, disodium salt, dihydrate (CAS: 10028-24-7)?

Phosphoric acid, disodium salt, dihydrate (CAS: 10028-24-7) is a crystalline solid with a molecular weight of approximately 234.09 g/mol. It has a dihydrate form, meaning it contains two water molecules per molecule of the salt. The salt is moderately soluble in water and exhibits weak acidic properties. It is stable under normal conditions but can react with strong bases to form sodium salts.

How is Phosphoric acid, disodium salt, dihydrate (CAS: 10028-24-7) typically synthesized?

Phosphoric acid, disodium salt, dihydrate is typically synthesized by dissolving sodium salts in phosphoric acid. The reaction is conducted at room temperature, and the product is then dehydrated to form the dihydrate form. This process involves careful temperature control to ensure the dihydrate form is maintained.

What industries use Phosphoric acid, disodium salt, dihydrate (CAS: 10028-24-7)?

Phosphoric acid, disodium salt, dihydrate (CAS: 10028-24-7) is widely used in the pharmaceutical industry for manufacturing medications, as a reagent in the polymer industry for producing certain polymers, and in the semiconductor industry for etching processes. It is also used in the production of sensors and as a component in various cleaning agents.

What precautions should be taken when handling Phosphoric acid, disodium salt, dihydrate (CAS: 10028-24-7)?

When handling Phosphoric acid, disodium salt, dihydrate (CAS: 10028-24-7), it is important to wear appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. Use a fume hood to minimize exposure to fumes. Spills should be cleaned up carefully using appropriate absorbents, and the area should be well-ventilated. Always refer to the Safety Data Sheet (SDS) for specific handling and disposal instructions.