Merck 100495 0500 Oxalic Acid Dihydrate Gr For Analysis Acs,iso 500 GR.

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Description
Catalogue Number	100495
Synonyms	Ethanedioic acid
Description	Oxalic acid dihydrate

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Product Information
CAS number	6153-56-6
EC index number	607-006-00-8
EC number	205-634-3
Grade	ACS,ISO,Reag. Ph Eur
Hill Formula	C₂H₂O₄ * 2 H₂O
Chemical formula	(COOH)₂ * 2 H₂O
Molar Mass	126.07 g/mol
HS Code	2917 11 00
Structure formula Image
Quality Level	MQ300

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Physicochemical Information
Boiling point	149 - 160 °C (1013 hPa) (decomposition)
Density	1.65 g/cm3 (20 °C)
Flash point	157 °C (decomposition)
Melting Point	98 - 100 °C
pH value	1.5 (10 g/l, H₂O)
Vapor pressure	0.000312 hPa (25 °C)
Bulk density	813 kg/m3
Solubility	>100 g/l

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Toxicological Information
LD 50 oral	LD50 Rat 375 mg/kg

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Safety Information according to GHS
Hazard Pictogram(s)	\n\n
Hazard Statement(s)	H302 + H312: Harmful if swallowed or in contact with skin.\nH318: Causes serious eye damage.
Precautionary Statement(s)	P264: Wash skin thoroughly after handling.\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.\nP362 + P364: Take off contaminated clothing and wash it before reuse.
Signal Word	Danger
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.

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Safety Information
Categories of danger	harmful

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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 (manganometric)	99.5 - 102.0 %
Insoluble matter	≤ 50 ppm
Chloride (Cl)	≤ 5 ppm
Sulfate (SO₄)	≤ 50 ppm
Total nitrogen (N)	≤ 10 ppm
Heavy metals (as Pb)	≤ 5 ppm
Heavy metals (ACS)	≤ 5 ppm
Ca (Calcium)	≤ 10 ppm
Fe (Iron)	≤ 2 ppm
Readily carbonisable substance	passes test
Residue on ignition (as sulfate)	≤ 100 ppm
Corresponds to ACS,ISO,Reag. Ph Eur