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Sodium phosphate dibasic_Molecular_structure_CAS_7558-79-4)
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Sodium phosphate dibasic

Catalog No. 219886 Name Sigma Aldrich
CAS Number 7558-79-4 Website http://www.sigmaaldrich.com
M. F. HNa2O4P Telephone 1-800-521-8956
M. W. 141.958841 Fax
Purity ≥99.0% Email
Storage Chembase ID: 130837

SYNONYMS

Title
磷酸钠 二元
IUPAC name
disodium hydrogen phosphate
IUPAC Traditional name
disodium hydrogen phosphate
Synonyms
Sodium hydrogenphosphate
磷酸二钠
sec-Sodium phosphate
Disodium phosphate
Disodium hydrogen phosphate
二盐基磷酸钠
磷酸一氢钠
磷酸氢二钠

DATABASE IDS

EC Number 231-448-7
CAS Number 7558-79-4
MDL Number MFCD00003496

PROPERTIES

Antion Traces chloride (Cl-): ≤0.002%
Antion Traces sulfate (SO42-): ≤0.005%
Cation Traces Fe: ≤0.002%
Cation Traces heavy metals: ≤0.001%
Grade ACS reagent
Impurities ≤0.01% insolubles
Linear Formula Na2HPO4
Loss on Drying ≤0.2% loss on drying
pH Range 8.7 - 9.3
Purity ≥99.0%
pKa (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) (25°C)
Vapor Density 4.9 (vs air)
MSDS Link Download
Personal Protective Equipment Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
RTECS WC4500000
German water hazard class 1

DETAILS

Description (English)
Application
Suitable for buffer solutions
Description (简体中文)
Application
适用于缓冲溶液

REFERENCES