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POTASSIUM HYDROGEN TARTRATE Extra Pure

Conforms to BP
Potassium L-tartrate monobasic; L-(+)-Tartaric acid monopotassium salt; Potassium hydrogen L-tartrate

COAs

Packings

500 g (00500)

25 Kg (0025K)

50 Kg (0050K)

1PW1200500 1PDL00030K 1PDLP0065K
Print friendly version
Article No. 05375 Grade Extra Pure
Purity 99.5% CAS No. 868-14-4
Molecular Formula C4H5KO6 Molecular Weight 188.18
H.S. Code 2918.1310 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour White powder
Odour Odorless pH value 3.4 - 3.7 at 20 °C
Melting point/ Freezing point [°C] > 250 °C Density [g/cm3] 1.954
Solubility in water [% weight] Slightly soluble in water

Specifications

Appearance White or almost white, crystalline powder or colourless crystals Assay (acidimetric; on dried basis) 99.5 - 100.5%
Solubility Passes test Identification Passes test
Specific optical rotation ([α]20/D) + 8.0° to + 9.2° Oxalic acid Max. 0.05%
Chloride (Cl) Max. 0.05% Sulphate (SO4) Max. 0.05%
Barium (Ba) Passes test Heavy metal (as Pb) Max. 0.001%
Loss on drying (at 105°C) Max. 0.5%
Revision Date: 31-Jan-2020

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