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LC4930 Potassium dihydrogen phosphate
for analysis (<= 0.005% Na) EMSURE ACS,ISO,Reag. Ph Eur

 

Order number Packaging Quantity Price €
AC31930 Plastic bottle 1 kg 45.9
AC31930 Fibre carton 25 kg Inquire

 

Product information
Grade ACS,ISO,Reag. Ph Eur
Synonyms mono-Potassium orthophosphate, Potassium biphosphate, Potassium phosphate monobasic
Hill Formula H2KO4P
Chemical formula KH2PO4
HS Code 2835 24 00
EC number 231-913-4
Molar mass 136.08 g/mol
CAS number 7778-77-0

 

Chemical and physical data
Solubility 222 g/l (20 °C)
Melting point ca.253 °C (decomposition)
Molar mass 136.08 g/mol
Density 2.34 g/cm3 (20 °C)
Bulk density 1200 kg/m3
pH value 4.4 (50 g/l, H2O, 20 °C)

 

Safety information
RTECS TC6615500
Storage class 10 – 13 Other liquids and solids
WGK WGK 1 slightly water endangering
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).

 

Transport information
Declaration (transport by sea) IMDG-Code No Dangerous Good
Declaration (transport by air) IATA-DGR No Dangerous Good

 

Toxicological data
LD 50 oral LD50 rabbit > 4640 mg/kg

 

Specifications
Assay
– alkalimetric
≥ 99.0 %
– alkalimetric, calculated on dried substance 98.0 – 100.5 %
– alkalimetric over dried substance ≥ 99.5 %
Identity passes test
Clarity of solution passes test
Insoluble substances ≤ 0.01 %
pH-value (5 %; water, 25 °C) 4.2 – 4.5
Chloride (Cl) ≤ 0.0005 %
Sulphate (SO4) ≤ 0.003 %
Total nitrogen (N) ≤ 0.001 %
Heavy metals (as Pb) ≤ 0.001 %
As (Arsenic) ≤ 0.0002 %
Fe (Iron) ≤ 0.001 %
Na (Sodium) ≤ 0.005 %
Reducing substances passes test
Loss on drying (130 °C) ≤ 0.2 %