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Brand Fluka | CAS Numbers (All) | EC Number | Linear Formula NaH2PO4 · 2H2O | MDL Number |
Molar Mass 156.01 g/mol | Synonyms Sodium dihydrogen phosphate dihydrate |
Property | Value |
---|---|
assay (calc. to the dried substance) | 98.0 - 100.5 % |
assay (calc.on the anhydrous basis) | 98.0 - 103.0 % |
loss on drying (130°C) | 21.5 - 24.0 % |
water (Karl Fischer) | 18.0 - 26.5 % |
water insoluble matter | Max. 0.2 % |
pH (5 %, 25 °C) | 4.2 - 4.5 |
pH (1 %,20°C) | 4.1 - 5.0 |
arsenic (As) | Max. 1 ppm |
calcium (Ca) | Max. 0.002 % |
cadmium (Cd) | Max. 1 ppm |
copper (Cu) | Max. 0.001 % |
iron (Fe) | Max. 5 ppm |
mercury (Hg) | Max. 1 ppm |
magnesium (Mg) | Max. 0.002 % |
lead (Pb) | Max. 1 ppm |
zinc (Zn) | Max. 0.001 % |
heavy metals (as Pb) | Max. 10 ppm |
Al, Ca and related substances | complying |
chloride (Cl) | Max. 50 ppm |
fluoride (F) | Max. 10 ppm |
sulfate (SO4) | Max. 200 ppm |
reducing impurities | complying |
appearance of the solution | complying |
residual solvents | complying |
appearance | complying |
Property | Value |
---|---|
Boiling Point/Range | Decomposes on heating |
Certification | Ph. Eur., BP, FCC, USP, E339 |
Color | Colorless |
Density | 2.04 g/cm3 (20 °C) |
Flashpoint | Not applicable |
Form | Solid |
Grade | Reagent Grade |
Incompatible Materials | None known |
Lower Explosion Limit | Not applicable |
Melting Point/Range | 60 °C |
Partition Coefficient | No data available |
Purity Percentage | 98.00 |
Purity Details | 98.00-100.50% |
Solubility in Water | Soluble |
Upper Explosion Limit | Not applicable |
Vapor Pressure | No data available |
Viscosity | Not applicable |
pH-Value | 4.2-4.5 (20 °C) (as aqueous solution) |
Storage Temperature | Ambient |
Property | Value |
---|---|
Hazard Class | N/A |
Package Group | N/A |
UN ID | N/A |
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