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Sodium Phosphate CAS#7558-79-4

Sodium Phosphate CAS#7558-79-4
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Chemical Name:Sodium Phosphate
CAS No.:7558-79-4
Molecular Formula:Na2HPO4
Sample: Available
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PRODUCT DESCRIPTION


Sodium Phosphate CAS#7558-79-4

Disodium phosphate has a high degree of hygroscopicity and water solubility. It can be used in combination with sodium monosodium phosphate when preparing biological buffers. It is usually used as a buffer for biological assays. Sodium is essential for the functions of nerves and muscles.

Sodium Phosphate, Dibasic Chemical Properties


Melting point

243-245 °C

density

1.064 g/mL at 20 °C

bulk density

880kg/m3

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

biological source

synthetic

Water Solubility

>=10 g/100 mL at 20 ºC

Sensitive

Hygroscopic

λmax

λ: 260 nm Amax: 0.019λ: 280 nm Amax: 0.016

Merck

14,8659

Stability:

Stable. Incompatible with strong acids. Hygroscopic.

InChIKey

BNIILDVGGAEEIG-UHFFFAOYSA-L

LogP

-2.15

CAS DataBase Reference

7558-79-4(CAS DataBase Reference)

EPA Substance Registry System

Disodium phosphate (7558-79-4)

Absorption

≤0.01 at 260nm≤0.01 at 280nm


Product Usage

Sodium Phosphate, Dibasic is used as a laboratory reagent and a buffer in chemical analysis. Other uses are in manufacturing ceramics, detergents, and enamels; as a mordant in dyeing; for fireproofing paper and wood; for weighting and printing silk; in the treatment of boiler water; as a sequestrant in food; as a dietary supplement; in soldering enamels; and in fertilizers. It is used therapeutically as a cathartic.

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