Merck 104984 0500 Potassium Hexacyanoferrate(II) Trihydrate P.A. 500 GR.

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Description
Catalogue Number	104984
Replaces	PX1460; PX1460-1; PX1460-20
Synonyms	Potassium ferrocyanide

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Product Information
CAS number	14459-95-1
EC number	237-722-2
Grade	ACS,ISO,Reag. Ph Eur
Hill Formula	C₆FeK₄N₆ * 3H₂O
Chemical formula	K₄[Fe(CN)₆]*3H₂O
Molar Mass	422.39 g/mol
HS Code	2837 20 19
Structure formula Image
Quality Level	MQ300

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Physicochemical Information
Density	1.85 g/cm3 (20 °C) (anhydrous substance)
Melting Point	70 °C Elimination of water of crystallisation
pH value	8.0 - 10 (211 g/l, H₂O, 25 °C) (anhydrous substance)
Bulk density	950 - 1050 kg/m3
Solubility	289 g/l

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Toxicological Information
LD 50 oral	LD50 Rat 3613 mg/kg

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Safety Information according to GHS
Storage class	10 - 13 Other liquids and solids
WGK	WGK 2 obviously hazardous to water
Disposal	14\nInorganic 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).

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Safety Information
Categories of danger	dangerous for the environment

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Storage and Shipping Information
Storage	Store at +2°C to +30°C.

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Specifications
Assay (cerimetric)	99.0 - 102.0 %
Insoluble matter	≤ 0.005 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO₄)	≤ 0.005 %
Na (Sodium)	≤ 0.01 %
Pb (Lead)	≤ 0.002 %
Corresponds to ACS,ISO,Reag. Ph Eur