StockOptions Phosphate - pH 5.0 to 8.2 in 0.2 pH unit increments - 10 ml

- pH 5.0 to 8.2 in 0.2 pH unit increments (17 reagents)
- 1.0 M concentrated stocks
- Sodium phosphate monobasic monohydrate pKa1 7.2
- Potassium phosphate dibasic pKa1 2.2 and pka2 6.8 and pka3 12.4

StockOptions Phosphate buffer kit is a preformulated, sterile filtered set of titrated buffer stocks. The StockOptions buffer stock reagents are supplied as 1.0 M stock solutions in 10 milliliter volumes. Each StockOptions Phosphate buffer reagent is formulated using a mixture of Sodium phosphate monobasic monohydrate and Potassium phosphate dibasic to determine the pH of the reagent. StockOptions Phsophate is comprised of 17 unique reagents covering the pH range of 5.0 to 8.2 in 0.2 pH unit increments.

Sodium phosphate monobasic monohydrate
Synonyms: Monosodium phosphate or Sodium dihydrogen phosphate monohydrate
NaH2PO4·H2O or H2NaO4P·H2O
Mr 137.99
CAS Number [10049-21-5]
EC Number 231-449-2
Merck 14,8660
MDL Number MFCD00149208
PubChem Substance ID 24886208
Purity > 99.0%

Trace Analysis
As <0.00005%
Ca <0.001%
Cd <0.0005%
Cl <0.0005%
Co <0.0005%
Cr <0.0005%
Cu <0.0005%
Fe <0.0005%
K <0.005%
Mg <0.0005%
Mn <0.0005%
N <0.001%
Ni <0.0005%
Pb <0.0005%
SO4 <0.003%
Zn <0.0005%

Potassium phosphate dibasic
Synonyms: Dipotassium hydrogenphosphate or Dipotassium phosphate or sec.-Potassium phosphate or di-Potassium hydrogen phosphate anhydrous
K2HPO4 or HK2O4P
Mr 174.18
CAS Number [7758-11-4]
EC Number 231-834-5
Merck 14,7658
MDL Number MFCD00011383
PubChem Substance ID 24881850
Purity ≥99.0%
Total Impurities: Insoluble matter passes filter test

Trace Analysis
Al <0.0005%
As <0.00001%
Ba <0.0005%
Bi <0.0005%
Ca <0.001%
Cd <0.0005%
Cl <0.005%
Co <0.0005%
Cr <0.0005%
Cu <0.0005%
Fe <0.0005%
Li <0.0005%
Mg <0.0005%
Mn <0.0005%
Mo <0.0005%
Na <0.5%
Ni <0.0005%
Pb <0.0005%
SO4 <0.005%
Sr <0.0005%
Zn <0.0005%

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