Merck 105073 0250 Potassium Oxalate Monohydrate For Analysis 250 GR.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Description
Catalogue Number	105073
Synonyms	Oxalic acid dipotassium salt monohydrate
Description	di-Potassium oxalate monohydrate

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Product Information
CAS number	6487-48-5
EC index number	607-007-00-3
EC number	209-506-8
Grade	ACS
Hill Formula	C₂K₂O₄ * H₂O
Chemical formula	K₂C₂O₄ * H₂O
Molar Mass	184.24 g/mol
HS Code	2917 11 00
Structure formula Image
Quality Level	MQ300

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Physicochemical Information
Density	2.20 g/cm3 (20.4 °C)
Melting Point	>138 °C Not applicable,(decomposition)
pH value	7.0 - 8.5 (50 g/l, H₂O, 25 °C)
Vapor pressure	<0.1 hPa (20 °C)
Bulk density	700 - 1100 kg/m3
Solubility	392 g/l (anhydrous substance)

\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Toxicological Information
LD 50 oral	LD50 Rat 660 mg/kg

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Safety Information according to GHS
Hazard Pictogram(s)	\n
Hazard Statement(s)	H302 + H312: Harmful if swallowed or in contact with skin.\nH319: Causes serious eye irritation.
Precautionary Statement(s)	P264: Wash skin thoroughly after handling.\nP270: Do not eat, drink or smoke when using this product.\nP280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.\nP301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell.\nP302 + P352 + P312: IF ON SKIN: Wash with plenty of water. Call a POISON CENTER/doctor if you feel unwell.\nP305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word	Warning
Storage class	10 - 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water
Disposal	3\nRelatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Safety Information
Categories of danger	harmful

\n\n\n\n\n\n\n\n\n\n\n\n\n\n

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

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

Specifications
Assay (oxidimetric)	99.5 - 101.0 %
Insoluble matter	≤ 0.01 %
Neutrality	passes test
Chloride (Cl)	≤ 0.001 %
Sulfate (SO₄)	≤ 0.01 %
Heavy metals (as Pb)	≤ 0.001 %
NH₄ (Ammonium)	≤ 0.002 %
Fe (Iron)	≤ 0.0005 %
Na (Sodium)	≤ 0.02 %
Substances darkened by hot sulfric acid	passes test
Corresponds to ACS