Merck 102161 0500 Calcium Sulfate Dihydrate Precipitated Gr For Analysis Acs 500 GR.

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Description
Catalogue Number	102161
Description	Calcium sulfate dihydrate

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Product Information
CAS number	10101-41-4
EC number	231-900-3
Hill Formula	CaO₄S * 2 H₂O
Chemical formula	CaSO₄ * 2 H₂O
Molar Mass	172.17 g/mol
HS Code	2833 29 80
Quality Level	MQ300

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Physicochemical Information
Density	2.320 g/cm3
pH value	7.0 (50 g/l, H₂O, 20 °C) (slurry)
Bulk density	400 - 600 kg/m3
Solubility	2 g/l

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Toxicological Information
LD 50 oral	LD50 Rat > 10000 mg/kg

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Safety Information according to GHS
RTECS	EW4150000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly 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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Storage and Shipping Information
Storage	Store at +2°C to +30°C.

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Specifications
Assay (complexometric)	99.0 - 102.0 %
Substances insoluble in hydrochloric acid	≤ 0.01 %
Carbonate (CO₃)	passes test
Chloride (Cl)	≤ 0.005 %
Nitrate (NO₃)	passes test
Heavy metals (as Pb)	≤ 0.002 %
Fe (Iron)	≤ 0.001 %
K (Potassium)	≤ 0.005 %
Mg (Magnesium)	≤ 0.01 %
Na (Sodium)	≤ 0.2 %
Sr (Strontium)	≤ 0.05 %