توضیحات
پتاسيم دي هيدروژن اورتو فسفات 1 كيلوگرم كمپاني سیگما آلدریچ
Potassium dihydrogen phosphate
for analysis AnalaR
Synonym: Monopotassium phosphate, Potassium dihydrogen phosphate, Potassium phosphate monobasic, mono-Potassium orthophosphate, Potassium biphosphate, Potassium phosphate monobasic, prim.-Potassium phosphate
- CAS Number 7778-77-0
- Linear Formula KH2PO4
- Molecular Weight 136.09
- MDL number MFCD00011401
- EC Index Number 231-913-4
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Analysis Note
Assay (alkalimetric): ≥ 99.0 %
Assay (alkalimetric, calculated on dried substance): 98.0 – 100.5 %
Assay (alkalimetric; dried substance): ≥ 99.5 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.01 %
pH-value (5 %; water, 25 °C): 4.3 – 4.4
Chloride (Cl): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.003 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0010 %
Heavy metals (ACS): ≤ 0.001 %
As (Arsenic): ≤ 0.0002 %
Fe (Iron): ≤ 0.0010 %
Na (Sodium): ≤ 0.005 %
Reducing substances: passes test
Loss on drying (130 °C): ≤ 0.2 %
Corresponds to ACS,ISO,Reag. Ph Eur
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