Merck 104820 1000 Potassium Acetate Extra Pure 1 KG.

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Description
Catalogue Number	104820

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Product Information
CAS number	127-08-2
EC number	204-822-2
Grade	Ph Eur,BP,JPE,E 261
Hill Formula	C₂H₃KO₂
Chemical formula	CH₃COOK
Molar Mass	98.15 g/mol
HS Code	2915 29 00
Structure formula Image
Quality Level	MQ500

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Physicochemical Information
Density	1.570 g/cm3
Melting Point	292 °C
pH value	7.0 - 9 (98.2 g/l, H₂O, 25 °C)
Vapor pressure	<0.0000001 hPa (25 °C)
Bulk density	500 kg/m3
Solubility	2530 g/l

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Toxicological Information
LD 50 oral	LD50 Rat 3250 mg/kg

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Safety Information according to GHS
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water

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Storage and Shipping Information
Storage	Store at +15°C to +25°C.

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Specifications
Assay (perchloric acid titration, calculated on dried substance)	99.0 - 100.5 %
Identity	passes test
Appearance of solution	passes test
pH-value (5 %; water)	7.5 - 8.5
Chloride (Cl)	≤ 0.01 %
Sulfate (SO₄)	≤ 0.005 %
Al (Aluminium)	≤ 0.0001 %
As (Arsenic)	≤ 0.0002 %
Fe (Iron)	≤ 0.001 %
Hg (Mercury)	≤ 0.0001 %
Na (Sodium)	≤ 0.5 %
Pb (Lead)	≤ 0.0002 %
Heavy metals (as Pb)	≤ 0.0004 %
free acetic acid	≤ 0.4 %
Other residual solvents (ICH Q3C)	excluded by manufacturing process
formic acid, formate and other oxidizable impurities	≤ 0.1 %
Substances reducing potassium permanganate (as HCOOH)	passes test
Loss on Drying (105 °C)	≤ 3.0 %
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, JPE, E261\nConforms to the purity criteria on food additives according to the current European Commission Regulation.