Overview
The category of sodium dihydrogen phosphate dihydrate is inorganic acid-type salt with the chemical formula NaH2PO4·2H2O.
It is a dihydrate organic compound with an orthorhombic axial crystal system and a crystalline type of dissociative radical-like substance with the properties of a monomer and a solution.
The molecular weight of sodium dihydrogen phosphate dihydrate is 156.01.
Sodium dihydrogen phosphate dihydrate Cas No. is 13472-35-0
Sodium dihydrogen phosphate dihydrate synonyms:
Sodium dihydrogen phosphate hydrate (1:1:2);
Sodium Dihydrogen Phosphate Dihydrate Bp;
Sodium Dihydrogen Phosphate Dihydrate Ip;
MonosodiumPhosphateFoodGradeHydrous;
Phosphoricacid monosodiumsalt, dihydrate;
Sodium dihydrogen phosphate, di;
Phosphoric acid monosodiumsalt dihydrate;
Sodium Dihydrogen Phosphate Dihydrate Usp;
MFCD00149209.
monosodiumdihydrogenphosphatedihydrate
Phosphoricacid,monosodiumsalt,dihydrate
Phosphoricacidmonosodiumsalt,dihydrate
Sodiumdihydrogenphosphate,di
Sodium biphosphate
Sodium biphosphate dihydrate
Sodium dihydrogen ort H2O
These synonyms reflect the naming differences of sodium dihydrogen phosphate dihydrate in different application scenarios.
Physical Properties
Sodium dihydrogen phosphate dihydrate is a white crystalline solid with density of 1,915 g/cm³, boiling point of 158°C and melting point of 60°C. It is easy to agglomerate in humid air, dehydrated to anhydrous at 100°C, generates sodium pyrophosphate at 190-210°C, and decomposes to sodium metaphosphate at 280-300°C. It can be used in the production of sodium phosphate dihydrate, and is also used in the production of sodium metaphosphate.
Chemical Properties
The aqueous solution of sodium dihydrogen phosphate dihydrate has an acidic reaction (pH about 4.5), very soluble in water, slightly soluble in chloroform. It is easy to agglomerate in humid air, dehydrated to anhydrous at 100℃, generating sodium pyrophosphate at 190-210℃, decomposing to sodium metaphosphate at 280-300℃.
Expanding reading:
What is sodium dihydrogen phosphate monohydrate?
