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Sodium Phosphate Dibasic CAS#7558-79-4

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  • Sodium Phosphate Dibasic CAS#7558-79-4
  • Sodium Phosphate Dibasic CAS#7558-79-4
  • Sodium Phosphate Dibasic CAS#7558-79-4
  • Sodium Phosphate Dibasic CAS#7558-79-4
  • Sodium Phosphate Dibasic CAS#7558-79-4

›

Sodium Phosphate Dibasic CAS#7558-79-4

Excellent Water Solubility & Hygroscopicity：Highly soluble and moisture-absorbing, ensuring rapid dissolution and stable performance in formulations.


Ideal Buffer Component：Commonly used with sodium phosphate monobasic to prepare reliable organic and biochemical buffer systems.


Nutritional & Physiological Support：Provides essential sodium and phosphate for normal nerve and muscle function and can be used as a dietary supplement.


Wide Food & Water Treatment Applications：Applied in food processing and water treatment, often in combination with trisodium phosphate for effective conditioning.


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Product Description

Product Description of ‌Sodium Phosphate Dibasic CAS#7558-79-4

Sodium phosphate dibasic is a highly hygroscopic, water-soluble salt. Used with sodium phosphate monobasic to make buffers for biochemical/analytical assays, it serves as a sodium/phosphate nutritional supplement and is applied in food processing and water treatment (often with trisodium phosphate).


Product Application of Sodium Phosphate Dibasic CAS#7558-79-4

Sodium phosphate dibasic is a laboratory reagent and buffering agent used in ceramics, detergents, enamels, textile dyeing, fireproofing, silk processing and boiler water treatment. It also serves as a food sequestrant, nutritional supplement, fertilizer component, soldering enamel ingredient and mild laxative.


Product Information

Parameters


Melting point243-245 °C
density1.064 g/mL at 20 °C
bulk density880kg/m3
vapor density4.9 (vs air)
vapor pressure0Pa at 20℃
FEMA2398 | DISODIUM PHOSPHATE
storage temp.Store at +5°C to +30°C.
solubilityH2O: 0.5 M at 20 °C, clear, colorless
formpowder
colorWhite
Odorodorless
PH8.9-9.2 (25℃, 50g/L in water)
pka(1) 2.15, (2) 6.82, (3) 12.38 (at 25℃)
biological sourcesynthetic
Water Solubility>=10 g/100 mL at 20 ºC
λmaxλ: 260 nm Amax: 0.019
λ: 280 nm Amax: 0.016
SensitiveHygroscopic
Merck148,659
Stability:Stable. Incompatible with strong acids. Hygroscopic.
InChIKeyBNIILDVGGAEEIG-UHFFFAOYSA-L
LogP-2.15
CAS DataBase Reference7558-79-4(CAS DataBase Reference)
EPA Substance Registry SystemDisodium phosphate (7558-79-4)
Absorption≤0.01 at 260nm
≤0.01 at 280nm


Safety Information


Hazard CodesXi
Risk Statements36/37/38
Safety Statements26-36-24/25
RIDADRUN 3077 9 / PGIII
WGK Germany3
RTECSWC4500000
F3
TSCAYes
HS Code28352200
Hazardous Substances Data7558-79-4(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: > 2000 mg/kg


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