Sodium phosphate dibasic - puriss. p.a. - ACS reagent - anhydrous - more than or equal to 99.0% (T)

Code: 71640-1KGSIG D2-231

General description

Sodium phosphate is widely used buffer in molecular biology, biochemistry, and chromatographic studies. It exists in three forms: monobasic (NaH2

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General description

Sodium phosphate is widely used buffer in molecular biology, biochemistry, and chromatographic studies. It exists in three forms: monobasic (NaH2PO4), dibasic (Na2HPO4), and tribasic (Na3PO4). Monobasic and dibasic forms in varying ratios are commonly used to compose the neutral sodium phosphate buffer solution.

anion tracessulfate (SO42-): ≤50 mg/kg, chloride (Cl-): ≤10 mg/kg
assay≥99.0% (T)
cation tracesK: ≤50 mg/kg, Cr: ≤5 mg/kg, Mn: ≤5 mg/kg, Mg: ≤5 mg/kg, Ca: ≤10 mg/kg, Pb: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, heavy metals: ≤0.001% (by ICP-OES), Zn: ≤5 mg/kg, Ni: ≤5 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg
formpowder (or crystals)
gradepuriss. p.a., ACS reagent
impurities≤0.001% total nitrogen (N)
InChI keyBNIILDVGGAEEIG-UHFFFAOYSA-L
InChI1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
loss≤0.2% loss on drying, 105 °C
pH8.7-9.3 (25 °C, 50 mg/mL in H2O)
pKa (25 °C)(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
Quality Level200
SMILES string[Na+].[Na+].[H]OP([O-])([O-])=O
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71640-250GSIG
Sodium phosphate dibasic - puriss. p.a. - ACS reagent - anhydrous - more than or equal to 99.0% (T)

Unit:EACH
List Price: £32.09
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71640-5KGSIG
Sodium phosphate dibasic - puriss. p.a. - ACS reagent - anhydrous - more than or equal to 99.0% (T)

Unit:EACH
List Price: £439.91
Source:List Price
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Cas Number7558-79-4
This product has met the following criteria: