71501

Sodium pyrophosphate dibasic

BioUltra, ≥99.0% (T)

• Synonym(s): Disodium dihydrogen pyrophosphate, Sodium diphosphate dibasic
• Linear Formula: Na₂H₂P₂O₇
• CAS Number: 7758-16-9
• Molecular Weight: 221.94
• NACRES: NA.25
• PubChem Substance ID: 57652309
• UNSPSC Code: 12161700
• EC Number: 231-835-0
• MDL number: MFCD00014246

Properties

• product line: BioUltra
• Quality Level: 200
• assay: ≥99.0% (T)
• form: powder
• impurities: insoluble matter, passes filter test
• loss: ≤0.5% loss on drying, 200 °C
• pH: 3.5-4.5 (20 °C, 0.1 M in H₂O, freshly prepared)
• solubility: H₂O: 0.1 M at 20 °C, clear, colorless
• anion traces: chloride (Cl^-): ≤50 mg/kg
• cation traces: Al: ≤5 mg/kg, As: ≤0.2 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤50 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤10 mg/kg, K: ≤300 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg
• λ: 1 M in H₂O
• UV absorption: λ: 260 nm A_max: 0.11, λ: 280 nm A_max: 0.09
• SMILES string: [Na+].[Na+].OP([O-])(=O)OP(O)([O-])=O
• InChI: 1S/2Na.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2*+1;/p-2
• InChI key: GYQBBRRVRKFJRG-UHFFFAOYSA-L

Description

Application

Sodium pyrophosphate dibasic has been used:

• as a setting retardant
• as a component of STOP-washing buffer for in gel kinase assay
• as protease and phosphatase inhibitor in the preparation of western blot lysis buffer

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H319
• pcodes: P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2
• Storage Class: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)