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104873 Potassium dihydrogen phosphate

104873
Purchase on Sigma-Aldrich

Overview

Key Spec Table

CAS #EC NumberHill FormulaChemical FormulaMolar MassGrade Value
7778-77-0231-913-4H₂KO₄PKH₂PO₄136.09 g/molISO

Products

Catalogue NumberPackaging Qty/Pack
1048730250 Plastic bottle 250 g
1048731000 Plastic bottle 1 kg
1048735000 Plastic bottle 5 kg
1048739025 Fibre carton 25 kg
1048739050 Fibre carton 50 kg
Description
Catalogue Number104873
Synonymsmono-Potassium orthophosphate, Potassium biphosphate, Potassium phosphate monobasic
Product Information
CAS number7778-77-0
EC number231-913-4
GradeISO
Hill FormulaH₂KO₄P
Chemical formulaKH₂PO₄
Molar Mass136.09 g/mol
HS Code2835 24 00
Quality LevelMQ300
Physicochemical Information
Density2.33 g/cm3 (21.5 °C)
Melting Point252.6 °C (decomposition)
pH value4.2 - 4.6 (20 g/l, H₂O, 20 °C)
Vapor pressure<0.1 hPa (25 °C)
Bulk density1200 kg/m3
Solubility208 g/l
Toxicological Information
LD 50 dermalLD50 Rabbit > 4640 mg/kg
Safety Information according to GHS
RTECSTC6615500
Storage class10 - 13 Other liquids and solids
WGKWGK 1 slightly hazardous to water
Disposal14
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
StorageStore at +2°C to +30°C.
Transport Information
Declaration (railroad and road) ADR, RIDKein Gefahrgut
Declaration (transport by air) IATA-DGRNo Dangerous Good
Declaration (transport by sea) IMDG-CodeNo Dangerous Good
Specifications
Assay (alkalimetric, calculated on dried substance)99.5 - 100.5 %
Assay (alkalimetric; dried substance)≥ 99.5 %
pH-value (5 %; water)4.2 - 4.5
Chloride (Cl)≤ 0.0005 %
Sulfate (SO₄)≤ 0.003 %
Total nitrogen (N)≤ 0.001 %
Heavy metals (as Pb)≤ 0.0010 %
As (Arsenic)≤ 0.0002 %
Cu (Copper)≤ 0.0003 %
Fe (Iron)≤ 0.0010 %
Na (Sodium)≤ 0.02 %
Pb (Lead)≤ 0.001 %
Reducing substancespasses test
Loss on drying (110 °C)≤ 0.2 %
Loss on drying (130 °C)≤ 0.2 %
Correspons to ISO
Global Trade Item Number
Catalogue Number GTIN
1048730250 04022536056074
1048731000 04022536056098
1048735000 04022536056128
1048739025 04022536584263
1048739050 04022536056142