Merck 106649 0500 Sodium Sulfate Anhydrous Gr For Analysis Acs,iso 500 GR.

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Description
Catalogue Number	106649
Replaces	SX0761-20

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Product Information
CAS number	7757-82-6
EC number	231-820-9
Grade	ACS,ISO,Reag. Ph Eur
Hill Formula	Na₂O₄S
Chemical formula	Na₂SO₄
Molar Mass	142.04 g/mol
HS Code	2833 11 00
Quality Level	MQ300

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Physicochemical Information
Density	2.70 g/cm3 (20 °C)
Melting Point	888 °C
pH value	5.2 - 8.0 (50 g/l, H₂O, 20 °C)
Bulk density	1400 - 1600 kg/m3
Solubility	200 g/l

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

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Safety Information according to GHS
RTECS	WE1650000
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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Transport Information
Declaration (railroad and road) ADR, RID	Kein Gefahrgut
Declaration (transport by air) IATA-DGR	No Dangerous Good
Declaration (transport by sea) IMDG-Code	No Dangerous Good

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Specifications
Assay (alkalimetric)	≥ 99.0 %
Assay (alkalimetric, calculated on dried substance)	98.5 - 101.0 %
Identity	passes test
Appearance of solution	passes test
Insoluble matter	≤ 0.01 %
Acidity or alkalinity	passes test
pH-value (5 %; water; 25 °C)	5.2 - 8.0
Chloride (Cl)	≤ 0.001 %
Phosphate (PO₄)	≤ 0.001 %
Total nitrogen (N)	≤ 0.0005 %
Heavy metals (ACS)	≤ 0.0005 %
Heavy metals (as Pb)	≤ 0.0005 %
As (Arsenic)	≤ 0.0001 %
Ca (Calcium)	≤ 0.005 %
Fe (Iron)	≤ 0.0005 %
K (Potassium)	≤ 0.002 %
Mg (Magnesium)	≤ 0.001 %
Loss on drying (130 °C)	≤ 0.5 %
Loss on ignition (800 °C)	≤ 0.5 %
Corresponds to ACS, ISO, Reag. Ph Eur