English
Product Name
Potassium phthalate monobasic, ACS reagent, acidimetric standard
grade
ACS reagent
Quality Level
Assay
99.95-100.05% dry basis
form
crystals
quality
acidimetric standard
impurities
≤0.002% S compounds
≤0.003% Cl compounds
≤0.005% insolubles
pH
4.00-4.02 (25.0 °C±0.2 °C, 0.05 M)
mp
295-300 °C (dec.) (lit.)
solubility
water: soluble (93 g/l at 30 °C (86 °F))
