Potassium phosphate monobasic

100

reag. ISO, reag. Ph. Eur.

ACS reagent, anhydrous, puriss. p.a.

99.5-100.5%

crystalline

≤0.001% total nitrogen (N)

≤0.2% loss on drying, 105 °C

4.2-4.5 (20 °C, 5%)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

252.6 °C (lit.)

water: 0.5 g/10 mL, clear, colorless to light yellow

2.338 g/mL at 25 °C (lit.)

chloride (Cl^-): ≤5 mg/kg, sulfate (SO₄^2-): ≤30 mg/kg

As: ≤0.5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤15 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg, heavy metals: ≤0.001% (by ICP)

[K+].OP(O)([O-])=O

1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1

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