Sodium pyrophosphate CAS 7758-16-9

Description

Quick Details

Chemical Name: Sodium pyrophosphate
CAS No.: 7758-16-9
Molecular Fomula: H5NaO7P2

Chemical Structure:

Molecular weight: 201.97

Appearance: White powder

Assay??99%

Typical Properties

Melting point	decomposes 220?? [MER06]
density	(hexahydrate) 1.86
vapor pressure	0Pa at 20??
storage temp.	-70??C
solubility	H2O: 0.1?M at?20???C, clear, colorless
form	white powder
color	White to Off-White
PH	3.5-4.5 (20??, 0.1M in H2O, freshly prepared)
Water Solubility	Fully miscible in water. Insoluble in alcohol and ammonia.
??max	??: 260 nm Amax: 0.11 ??: 280 nm Amax: 0.09
Merck	13,8643
Stability:	Stable.

application:

Sodium Pyrophosphate Dibasic is anhydrous form, pyrophosphate salt used in buffers.

Packaging and Shipping?

Drum, 25kg

Storage

Keep in dark place,Inert atmosphere,Store in freezer, under -20??C