磷酸氫二鉀 無水 500g | SCHARLAU

– Synonyms: Dipotassium hydrogen phosphate, Potassium phosphate dibasic
– K2HPO4
– M = 174,18 g/mol
– CAS [7758-11-4]
– EINECS-No.: 231-834-5
– Solub. in water: (20 ºC): soluble
– Tariff number: 2835 24 00 00
– Applications: analytical chemistry, in buffer solutions (phosphates), nutrient media for bacterial culture.

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貨號: SAL-PO02570500 分類:

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SPECIFICATIONS
assay (acidimetric, on dried sample): 98,0 – 101,0 %
Identification A (EP): passes test
Identification B (EP): passes test
Identification C (EP): passes test
appearance of solution: clear and colourless
reducing substances: passes test
potassium dihydrogen phosphate: max. 2,5 %
chlorides (Cl): max. 200 ppm
sulfates (SO4): max. 0,1 %
arsenic (As): max. 2 ppm
iron (Fe): max. 10 ppm
loss on drying (130 ºC): max. 2,0 %

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