di-Sodium hydrogen phosphate anhydrous, for analysis, ExpertQ®, ACS, Reag. Ph Eur
- Synonyms: Disodium hydrogen phosphate, Sodium phosphate dibasic
- Na2HPO4
- M = 141,96 g/mol
- CAS [7558-79-4]
- EINECS-No.: 231-448-7
- Solub. in water: (20 ºC): 77 g/l
- Melting point: ~ 250 ºC (decomposes)
- LD 50 (oral, rat): 17000 mg/kg
- Tariff number: 2835 22 00 00
- Applications: analytical chemistry, in buffer solutions.
SPECIFICATIONS
assay (acidimetric): min. 99,0 %
identity (IR-spectrum): passes test
insoluble in water: max. 0,01 %
pH (5 %, H2O): 8,7 - 9,3
chlorides (Cl): max. 0,001 %
sulfates (SO4): max. 0,005 %
copper (Cu): max. 3 ppm
heavy metals: max. 0,001 %
iron (Fe): max. 0,001 %
lead (Pb): max. 0,001 %
loss on drying (105 ºC): max. 0,2 %
potassium (K): max. 0,01 %
| Reference | Volume | ||
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SO0337005P | x 5 kg |
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SO0337025P | x 25 kg |
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SO03370500 | x 500 g |
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SO03371000 | x 1 kg |
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