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Disodium hydrogenphosphate
Product Details
Category
Buffering Agents
Molecular Formula
HNa2O4P
CAS Number
7558-79-4
Synonyms
Disodium hydrogenorthophosphate;disodium,hydrogen phosphate;
Purity
231-448-7
Quality Level
200
Storage
Store at RT.
Boiling Point
158ºC at 760 mmHg
Melting Point
243-245ºC
Density
1.064 g/mL at 20ºC
Product Description
Disodium phosphate (DSP), or sodium hydrogen phosphate, is the inorganic compound with the formula Na2HPO4. It is one of several sodium phosphates. The salt is known in anhydrous form as well as forms with 2, 7, 8, and 12 hydrates. All are water-soluble White powders; the anhydrous salt being hygroscopic.
EC Number
231-448-7
Molecular Weight (g/mol)
141.959
Physical State
Powder
MDL number
MFCD00003496
NACRES
NA.21
InChI Key
BNIILDVGGAEEIG-UHFFFAOYSA-L
SMILES
[Na+].[Na+].[H]OP([O-])([O-])=O
InChI
1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
Stability
Stable. Incompatible with strong acids. Hygroscopic.
Hazard Codes
Xi
Safety Statements
S24/25-S36
WGK Germany
3
RTECS
WC4500000
HS Code
2835220000
Color
White granular
Risk Statements
R36/37/38
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