60221
Fluka

Potassium phosphate monobasic

SKU
60221
for HPLC, ≥99.5%
Synonym(s)
Monopotassium phosphate; Potassium dihydrogen phosphate; prim.-Potassium phosphate
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Brand
Fluka
UNSPSC Code
12161700
CAS Numbers (All) EC Number Linear Formula
KH2PO4
MDL Number Molar Mass
136.09 g/mol
RTECS Number
TC6615500
Synonyms
Monopotassium phosphate; Potassium dihydrogen phosphate; prim.-Potassium phosphate

Documents

Specifications

PropertyValue
Assay99.5 - 101.0 %
pH (10 %, 20°C)4.1 - 4.5
Absorbance at 210 nmmax. 0.1
Absorbance at 220 nmmax. 0.06
Absorbance at 230 nmmax. 0.04
Absorbance at 300 nmmax. 0.02
Absorbance 500 nmmax. 0.02
Appearance of the solution (c=10%)complying
pKa (25 °C)(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

Properties

PropertyValue
Autoignition TemperatureNot auto-flammable
Boiling Point/RangeNot applicable
ColorColorless
Density2.34 g/cm3 (20 °C)
FlashpointNot applicable
For Use With (Equipment)For HPLC
FormCrystalline
GradeHPLC Buffer Salt
Incompatible MaterialsStrong acids and strong bases
Lower Explosion LimitNot applicable
Melting Point/Range253 °C
Partition CoefficientNo data available
Purity Percentage99.5
Purity Details>=99.5%
Solubility in Water220 g/l (20 °C)
Storage TemperatureAmbient
Upper Explosion LimitNot applicable
Vapor PressureNo data available
ViscosityNo data available
pH-Value4.2-4.5 (20 °C)

Safety Information

PropertyValue
Hazard ClassN/A
Package GroupN/A
UN IDN/A
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