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Sodium Phosphate Dibasic Anhydrous Structure

Sodium Phosphate Dibasic Anhydrous

Chemical Properties

Melting point 243-245 °C
Density  1.064 g/mL at 20 °C
vapor density  4.9 (vs air)
vapor pressure  0Pa at 20℃
FEMA  2398 | DISODIUM PHOSPHATE
storage temp.  Store at +5°C to +30°C.
solubility  H2O: 0.5 M at 20 °C, clear, colorless
form  powder
color  White
PH 8.9-9.2 (25℃, 50g/L in water)
pka (1) 2.15, (2) 6.82, (3) 12.38 (at 25℃)
Odor odorless
Water Solubility  >=10 g/100 mL at 20 ºC
Sensitive  Hygroscopic
λmax λ: 260 nm Amax: 0.019
λ: 280 nm Amax: 0.016
Merck  14,8659
Stability Stable. Incompatible with strong acids. Hygroscopic.
InChIKey BNIILDVGGAEEIG-UHFFFAOYSA-L
LogP -2.15
Substances Added to Food (formerly EAFUS) SODIUM PHOSPHATE, DIBASIC
CAS DataBase Reference 7558-79-4(CAS DataBase Reference)
FDA UNII 22ADO53M6F
EPA Substance Registry System Disodium phosphate (7558-79-4)

Safety

Symbol(GHS)
Hazard statements H315-H319-H335
Precautionary statements P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-24/25
RIDADR  UN 3077 9 / PGIII
WGK Germany  3
RTECS  WC4500000
3
TSCA  Yes
HS Code  28352200
Hazardous Substances Data 7558-79-4(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: > 2000 mg/kg
NFPA 704:
0
1 1

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