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Sodium phosphate dibasic heptahydrate

SIGALD/S9390 - ACS reagent, 98.0-102.0%

Synonym: Disodium hydrogen phosphate heptahydrate; Disodium phosphate

CAS Number: 7782-85-6
Empirical Formula (Hill Notation): HNa2O4P · 7H2O
Molecular Weight: 268.07
EC Number: 237-707-0
MDL Number: MFCD00149180
Linear Formula: Na2HPO4 · 7H2O
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-S9390-100G 100 g
 $50.20
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45-S9390-500G 500 g
 $102.00
1/EA		 Add To Favorites
45-S9390-1KG 1 kg
 $187.00
1/EA		 Add To Favorites
45-S9390-2.5KG 2.5 kg
 $440.00
1/EA		 Add To Favorites
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: S9390-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: S9390-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: S9390-1KG
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: S9390-2.5KG

 

anion traces chloride (Cl-): ≤0.001%
  sulfate (SO42-): ≤0.005%
assay 98.0-102.0%
cation traces Fe: ≤0.001%
  heavy metals: ≤0.001% (by ICP)
density 1.68 g/mL at 25 °C (lit.)
form powder
grade ACS reagent
impurities ≤0.005% Insoluble matter
InChI 1S/2Na.H3O4P.7H2O/c;;1-5(2,3)4;;;;;;;/h;;(H3,1,2,3,4);7*1H2/q2*+1;;;;;;;;/p-2
InChI key PYLIXCKOHOHGKQ-UHFFFAOYSA-L
pH 8.7-9.3 (25 °C, 5% in solution)
Quality Level 200 
SMILES string O.O.O.O.O.O.O.[Na+].[Na+].OP([O-])([O-])=O
vapor density 4.9 (vs air)
Application: A mixture of sodium phosphate dibasic heptahydrate, potassium phosphate monobasic, and NaCl in deionized water is used for the preparation of phosphate-buffered saline (PBS, pH 7.4). PBS is used as a buffer solution in biological research to keep the pH constant.
General description: Sodium phosphate dibasic heptahydrate is a hydrated form of disodium phosphate (DSP) or disodium hydrogen orthophosphate. DSP is widely used as a pH regulator and saline laxative.
Packaging: 1, 2.5, 4×2.5 kg in poly bottle
Packaging: 100, 500, 6×500 g in poly bottle
WGK Germany WGK 1
Flash Point(F) Not applicable
Flash Point(C) Not applicable
Purity 98.0-102.0%
Density 1.68 g/mL at 25 °C (lit.)
UNSPSC 12352302

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