Phosphates
Potassium dihydrogen phosphate (04243)
extra pure, meets analytical specification of Ph. Eur., NF, E 340, assay (calc. to the dried substance) 98.0 - 100.5%
Overview
Specifications
General Information
- Molar Mass
- 136.09 g/mol
- Linear Formula
- KH2PO4
- CAS Number
- 7778-77-0
- Grade
- Extra pure
Physical Properties
- Vapor Pressure
- No data available hectopascal
- pH
- 4.2 to 4.5 (20 °C)
- Density
- 2.34 g/cm3 (20 °C)
- Odor
- Odorless
- Color
- Colorless
- Physical Form
- Crystalline powder
- Boiling Point/Range
- Not applicable
Safety Information
- Chemical Stability
- Stable under normal conditions.
- Self Ignition
- Not auto-flammable
- Flammability
- The product is not flammable.
- Incompatible Materials
- None known
- Thermal Decomposition
- 400 °C
International Transportation
- Harmonized System Code
- 28352400
General Information
- Molar Mass
- 136.09 g/mol
- Linear Formula
- KH2PO4
- CAS Number
- 7778-77-0
- Grade
- Extra pure
Physical Properties
- Vapor Pressure
- No data available hectopascal
- pH
- 4.2 to 4.5 (20 °C)
- Density
- 2.34 g/cm3 (20 °C)
- Odor
- Odorless
- Color
- Colorless
- Physical Form
- Crystalline powder
- Boiling Point/Range
- Not applicable
Safety Information
- Chemical Stability
- Stable under normal conditions.
- Self Ignition
- Not auto-flammable
- Flammability
- The product is not flammable.
- Incompatible Materials
- None known
- Thermal Decomposition
- 400 °C
International Transportation
- Harmonized System Code
- 28352400
- Molar Mass : 136.09 g/mol
- Linear Formula : KH2PO4
- CAS Number : 7778-77-0
- Grade : Extra pure
- Vapor Pressure : No data available hectopascal
- pH : 4.2 to 4.5 (20 °C)
- Density : 2.34 g/cm3 (20 °C)
- Odor : Odorless
- Color : Colorless
- Physical Form : Crystalline powder
- Boiling Point/Range : Not applicable
- Chemical Stability : Stable under normal conditions.
- Self Ignition : Not auto-flammable
- Flammability : The product is not flammable.
- Incompatible Materials : None known
- Thermal Decomposition : 400 °C
- Harmonized System Code : 28352400
Property
Value
assay (calc. to the dried substance)
98.0 - 100.5 %
loss on drying (130°C)
Max. 1.0 %
loss on drying (105°C, 4 h)
Max. 1.0 %
water insoluble matter
Max. 0.2 %
pH (5 %, 20°C)
4.2 - 4.5
arsenic (As)
Max. 1 ppm
cadmium (Cd)
Max. 1 ppm
copper (Cu)
Max. 0.002 %
iron (Fe)
Max. 10 ppm
mercury (Hg)
Max. 1 ppm
sodium (Na)
Max. 0.1 %
lead (Pb)
Max. 1 ppm
zinc (Zn)
Max. 0.002 %
heavy metals (as Pb)
Max. 10 ppm
chloride (Cl)
Max. 10 ppm
fluoride (F)
Max. 10 ppm
sulfate (SO4)
Max. 200 ppm
KMnO4 red. matter (as O)
Max. 0.04 %
appearance of the solution
complying
residual solvents
complying
