StockOptions Citric Acid buffer kit is a preformulated, sterile filtered set of titrated buffer stocks. The StockOptions Citric Acid buffer stock reagents are supplied as 1.0 M stock solutions in 10 ml volumes. Each StockOptions Citric Acid buffer reagent is carefully titrated using Sodium hydroxide. StockOptions Citric Acid is comprised of 44 unique reagents covering the pH range of 2.2 to 6.5 in 0.1 pH unit increments. Individual reagents are available.
Citric acid Synonym:Citric acid anhydrous C6H8O7 HOC(COOH)(CH2COOH)2 Mr 192.13 CAS Number [77-92-9] EC Number 201-069-1 Beilstein Registry Number 782061 Merck 14,2326 RTECS GE7350000 MDL Number MFCD00011669 PubChem Substance ID 24856611 Purity >99.5% Useful pH range of citric acid as a buffer 2.2 - 6.5 pKa1 = 3.1 pKa2 = 4.8 pKa3 = 6.4
Assay Al <0.0005% As <0.00001% Ba <0.0005% Bi <0.0005% Ca <0.001% Cd <0.0005% Cl <0.0005% Co <0.0005% Cr <0.0005% Cu <0.0005% Fe <0.0005% K <0.005% Li <0.0005% Mg <0.0005% Mn <0.0005% Mo <0.0005% Na <0.005% Ni <0.0005% Oxalate (C2O4) <0.05% Pb <0.0005% PO4 <0.0005% SO4 <0.002% Sr <0.0005% Tartrate (C4H4O6) <0.2% Zn <0.0005%
