DISODIUM DIHYDROGEN PHOSPHATE
1.BASSIC INFORMATION
Alias: MSP
Formula: NaH2PO4·2H2O
Molecular weight: 156.01
CAS NO.: 13472-35-0
HS Code: 28352200
EINECS: 603-853-
2.PROPERTIES
Appearance: White crystal
Density: 1.915/cm3
Melting point: 60ºC
Solubility: Easily Soluble in water.The solubility in water at 25ºC is 12.14%, which is insoluble in ethanol.
Attribute: Colorless orthorhombic crystal, which is easily soluble in water, easy to agglomerate in wet air, and dehydrated into anhydrous substance at 100ºC. The aqueous solution is acidic.
3.APPLICATIONS
It is used in boiler water treatment, electroplating, tanning, baking powder, fuel additives, detergents, Mica, acid retarder, etc.It is also the raw material for preparing sodium hexametaphosphate and polycondensate.
4.TECHNICAL STANDARD(HG/T2767-2009)
Item |
Industrial Grade |
NaH4P2O4·2H2O |
NaH4P2O4 |
NaH4P2O4·2H2O,%≥ |
98.0 |
98.0 |
Water insoluble, %≤ |
0.10 |
0.20 |
Fe, %≤ |
0.05 |
0.05 |
As, %≤ |
0.01 |
0.01 |
SO4,%≤ |
0.50 |
0.50 |
CI,%≤ |
0.40 |
0.40 |
F, %≤ |
0.05 |
0.05 |
PH(10G/L) |
4.2~4.6 |
4.2~4.6 |
5.PACKAGING
PP and PE composite woven bags, inner vacuum treatment: 25kg/bag, 50kg/bag, 1000kg/bag, net weight and pattern can be customized.
6.TRANSPORTATION & STORAGE
During transportation, prevent rain and sunshine. Store in a dry and ventilated warehouse, and add cushion to prevent caking.