di-Potassium hydrogen phosphate

ürün Kodu : 137010.1000

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Ürün Grubu : Merck Kimyasalları

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Description
Catalogue Number 137010
Synonyms Dipotassium hydrogen phosphate, Potassium phosphate dibasic, Dipotassium Phosphate
Product Information
CAS number 7758-11-4
EC number 231-834-5
Grade Ph Eur,BP,USP
Hill Formula HK₂O₄P
Chemical formula K₂HPO₄
Molar Mass 174.20 g/mol
HS Code 2835 24 00
Quality Level MQ500
Physicochemical Information
Density 2.45 g/cm3 (20.5 °C)
Melting Point >450 °C (decomposition)
pH value 9.2 (H₂O)
Bulk density 700 - 1000 kg/m3
Solubility 1600 g/l
Toxicological Information
LD 50 oral LD50 Rat 8000 mg/kg
Safety Information according to GHS
RTECS TC5580000
Storage class 10 - 13 Other liquids and solids
WGK WGK 1 slightly hazardous to water
Disposal 14
Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).
Storage and Shipping Information
Storage Store at +15°C to +25°C.
Specifications
Assay (alkalimetric, calculated on dried substance) 98.0 - 100.5 %
Identity passes test
Appearance of solution passes test
Insoluble substances ≤ 0.2 %
pH-value (5 %; water) 8.5 - 9.6
Carbonate passes test
Chloride (Cl) ≤ 0.02 %
Fluoride (F) ≤ 0.001 %
Sulfate (SO₄) ≤ 0.1 %
Al (Aluminium) ≤ 0.0005 %
As (Arsenic) ≤ 0.0002 %
Fe (Iron) ≤ 0.0010 %
Na (Sodium) ≤ 1.5 %
Na (sodium) passes test
Potassium dihydrogen phosphate ≤ 2.5 %
Potassium dihydrogen phosphate and tri- Potassium phosphate passes test
Residual solvents (ICH Q3C) excluded by manufacturing process
Reducing substances passes test
Loss on drying (130 °C) ≤ 1.0 %
Endotoxins ≤ 2.5 I.U./g
Total aerobic microbial count ≤ 100 CFU/g
Total yeast and mould count ≤ 100 CFU/g
DNases (Exo- and endonucleases) (not detectable) passes test
RNases (not detectable) passes test
Proteases (not detectable) passes test
Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*).
Corresponds to Ph Eur,BP,USP

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