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Physicochemical Information
Boiling point	1689 °C (1013 hPa)
Density	2.662 g/cm3
Melting Point	1067 °C
pH value	7 (H₂O, 25 °C)
Bulk density	800 kg/m3
Solubility	111 g/l

Toxicological Information
LD 50 oral	LD50 Rat 6600 mg/kg

Safety Information according to GHS
RTECS	TT5900000
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.

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

Specifications
Assay (alkalimetric)	≥ 99.0 %
Insoluble matter	≤ 0.01 %
pH-value (5 %; water, 25 °C)	5.5 – 7.5
Chloride (Cl)	≤ 0.0005 %
Total nitrogen (N)	≤ 0.0005 %
Heavy metals (as Pb)	≤ 0.0005 %
As (Arsenic)	≤ 0.0002 %
Ca (Calcium)	≤ 0.005 %
Fe (Iron)	≤ 0.0005 %
Mg (Magnesium)	≤ 0.002 %
Na (Sodium)	≤ 0.02 %
Corresponds to ACS,ISO,Reag. Ph Eur

Merck 105153 1000 Potassium Sulfate Gr For Analysis Acs,iso 1 KG.