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Sodium phosphate dibasic_Molecular_structure_CAS_7558-79-4)
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Sodium phosphate dibasic

Catalog No. 71629 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 ≥99.999% (metals basis) 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
PubChem SID 24886237
MDL Number MFCD00003496

PROPERTIES

Antion Traces chloride (Cl-): ≤5 mg/kg
Antion Traces sulfate (SO42-): ≤30 mg/kg
Cation Traces As: ≤0.1 mg/kg
Cation Traces Ba: ≤1 mg/kg
Cation Traces Ca: ≤0.5 mg/kg
Cation Traces Cd: ≤0.01 mg/kg
Cation Traces Ce: ≤0.01 mg/kg
Cation Traces Co: ≤0.01 mg/kg
Cation Traces Cs: ≤5 mg/kg
Cation Traces Cu: ≤0.01 mg/kg
Cation Traces Eu: ≤0.01 mg/kg
Cation Traces Fe: ≤0.05 mg/kg
Cation Traces Hg: ≤0.005 mg/kg
Cation Traces K: ≤2 mg/kg
Cation Traces La: ≤0.01 mg/kg
Cation Traces Li: ≤1 mg/kg
Cation Traces Mg: ≤0.1 mg/kg
Cation Traces Mn: ≤0.01 mg/kg
Cation Traces Ni: ≤0.01 mg/kg
Cation Traces Pb: ≤0.01 mg/kg
Cation Traces Rb: ≤5 mg/kg
Cation Traces Sm: ≤0.01 mg/kg
Cation Traces Sr: ≤0.5 mg/kg
Cation Traces Tl: ≤0.01 mg/kg
Cation Traces Y: ≤0.01 mg/kg
Cation Traces Yb: ≤0.01 mg/kg
Cation Traces Zn: ≤0.01 mg/kg
Grade for trace analysis
Grade TraceSELECT®
Impurities ≤10 mg/kg total nitrogen (N)
Linear Formula Na2HPO4
Purity ≥99.999% (metals basis)
pKa (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) (25°C)
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)
Legal Information
TraceSELECT is a registered trademark of Sigma-Aldrich Co. LLC
Description (简体中文)
法律信息
TraceSELECT 注册商标 Sigma-Aldrich Co. LLC

REFERENCES