پتاسیم هیدروژن فتالات 104874 مرک

Description
Catalogue Number	104874

Product Information
CAS number	877-24-7
EC number	212-889-4
Grade	Reag. Ph Eur
Hill Formula	C₈H₅KO₄
Molar Mass	204.22 g/mol
HS Code	2917 39 95
Structure formula Image

Applications
Application	Potassium hydrogen phthalate for analysis EMSURE® Reag. Ph Eur. CAS 877-24-7, pH 4.0 (50 g/l, H₂O, 20 °C).

Physicochemical Information
Density	1.636 g/cm3
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 water endangering
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 +5°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