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Description
Catalogue Number	104874

Physicochemical Information
Density	1.571 g/cm3 (20 °C)
Flash point	197.3 °C not applicable
Melting Point	295 – 300 °C
pH value	4.0 (50 g/l, H₂O, 20 °C)
Bulk density	900 kg/m3
Solubility	80 g/l

Toxicological Information
LD 50 oral	LD50 Rat > 3200 mg/kg

Safety Information according to GHS
RTECS	CZ4326000
Storage class	10 – 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water
Disposal	3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

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

Specifications
Assay (Perchloric acid titration from dried substance)	≥ 99.5 %
Identity (IR-spectrum)	passes test
In water insoluble matter	≤ 0.005 %
Chloride (Cl)	≤ 0.002 %
Sulfur compounds (as SO₄)	≤ 0.005 %
Heavy metals (as Pb)	≤ 0.0005 %
Cu (Copper)	≤ 0.0002 %
Fe (Iron)	≤ 0.0005 %
Na (Sodium)	≤ 0.01 %
Pb (Lead)	≤ 0.0005 %
Loss on Drying (105 °C)	≤ 0.2 %
Corresponds to Reag. Ph Eur

Merck 104874 0250 Potassium Hydrogen Phthalate Gr For Analysis 250 GR.