Phosphates
di-Sodium hydrogen phosphate dodecahydrate (04273)
extra pure, meets analytical specification of Ph. Eur., BP, E 339, assay 98.5 - 102.5%
Overview
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Specifications
General Information
- Molar Mass
- 358.14 g/mol
- CAS Number
- 10039-32-4
- Linear Formula
- Na2HPO4 x 12 H2O
- Grade
- Extra pure
Physical Properties
- pH
- 9.0 to 9.3 (20 °C)
- Vapor Pressure
- No data available hectopascal
- Odor
- Odorless
- Physical Form
- Crystalline powder
- Density
- 1.52 g/cm3 (20 °C)
- Boiling Point/Range
- No data available
- Melting Point/Range
- 34 °C
- Color
- Colorless
Safety Information
- Chemical Stability
- Stable under normal conditions.
- Incompatible Materials
- No information available
- Thermal Decomposition
- Loss of water of crystallization on heating.
- Flammability
- The product is not flammable.
- Self Ignition
- Not auto-flammable
International Transportation
- Harmonized System Code
- 2835220000
General Information
- Molar Mass
- 358.14 g/mol
- CAS Number
- 10039-32-4
- Linear Formula
- Na2HPO4 x 12 H2O
- Grade
- Extra pure
Physical Properties
- pH
- 9.0 to 9.3 (20 °C)
- Vapor Pressure
- No data available hectopascal
- Odor
- Odorless
- Physical Form
- Crystalline powder
- Density
- 1.52 g/cm3 (20 °C)
- Boiling Point/Range
- No data available
- Melting Point/Range
- 34 °C
- Color
- Colorless
Safety Information
- Chemical Stability
- Stable under normal conditions.
- Incompatible Materials
- No information available
- Thermal Decomposition
- Loss of water of crystallization on heating.
- Flammability
- The product is not flammable.
- Self Ignition
- Not auto-flammable
International Transportation
- Harmonized System Code
- 2835220000
- Molar Mass : 358.14 g/mol
- CAS Number : 10039-32-4
- Linear Formula : Na2HPO4 x 12 H2O
- Grade : Extra pure
- pH : 9.0 to 9.3 (20 °C)
- Vapor Pressure : No data available hectopascal
- Odor : Odorless
- Physical Form : Crystalline powder
- Density : 1.52 g/cm3 (20 °C)
- Boiling Point/Range : No data available
- Melting Point/Range : 34 °C
- Color : Colorless
- Chemical Stability : Stable under normal conditions.
- Incompatible Materials : No information available
- Thermal Decomposition : Loss of water of crystallization on heating.
- Flammability : The product is not flammable.
- Self Ignition : Not auto-flammable
- Harmonized System Code : 2835220000
Property
Value
assay
98.5 - 102.5 %
assay (calc. to the dried substance)
98.5 - 101 %
assay of NaH2PO4 (calc.to dried subst.)
Max. 1.0 %
water (Karl Fischer)
57.0 - 61.0 %
loss on drying (130°C)
Max. 61.0 %
water insoluble matter
Max. 0.2 %
pH (1 %,20°C)
8.4 - 9.6
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
potassium (K)
Max. 0.005 %
lead (Pb)
Max. 1 ppm
zinc (Zn)
Max. 0.001 %
heavy metals (as Pb)
Max. 10 ppm
chloride (Cl)
Max. 10 ppm
fluoride (F)
Max. 10 ppm
sulfate (SO4)
Max. 100 ppm
appearance of the solution
complying
reducing impurities
complying
residual solvents
complying
