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MERCK 106521.1000 Sodium Molybdate Dihydrate GR for Analysis (SD.M.106521.1000)

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MERCK 106521.1000 Sodium Molybdate Dihydrate GR for Analysis

Description
Catalogue Number	106521

Product Information
CAS number	10102-40-6
EC number	231-551-7
Grade	ACS,Reag. Ph Eur
Hill Formula	Na₂MoO₄ * 2 H₂O
Chemical formula	Na₂MoO₄ * 2 H₂O
Molar Mass	241.95 g/mol
HS Code	2841 70 20
Quality Level	MQ300

Physicochemical Information
Density	2.71 g/cm3 (22 °C) (for the dihydrate)
Melting Point	687 °C Elimination of water of crystallisation
pH value	9 - 10 (840 g/l, H₂O, 20 °C)
Bulk density	1000 - 1400 kg/m3
Solubility	840 g/l

Toxicological Information
LD 50 oral	LD50 Rat 4233 mg/kg
LD 50 dermal	LD50 Rat > 2000 mg/kg

Safety Information according to GHS
RTECS	QA5085000
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water
Disposal	14 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
Storage	Store at +2°C to +30°C.

Specifications
Assay (precipitative titration)	99.5 - 103.0 %
pH-value (5 %; water, 25 °C)	7.0 - 10.5
Insoluble matter	≤ 0.005 %
Chloride (Cl)	≤ 0.005 %
Nitrate (NO₃)	≤ 0.005 %
Phosphate (PO₄)	≤ 0.0005 %
Phosphate, Arsenate, Silicate (as PO₄)	≤ 0.001 %
Sulfate (SO₄)	≤ 0.005 %
Fe (Iron)	≤ 0.001 %
NH₄ (Ammonium)	≤ 0.001 %
Pb (Lead)	≤ 0.001 %
Heavy metals (as Pb)	≤ 0.0005 %
Corresponds to ACS, Reag. Ph Eur

Global Trade Item Number
Catalogue Number	GTIN
1065210100	04022536078144
1065210250	04022536078151
1065211000	04022536078168

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