Merck 101192 0250 Di-Ammonium Oxalate Monohydrate Gr For Analysis Acs,iso,Reag. Ph Eur 250 GR.

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Description
Catalogue Number	101192
Replaces	AX1325; AX1325-2; AX1325-20; AX1325-1
Synonyms	Oxalic acid ammonium salt
Description	di-Ammonium oxalate monohydrate

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Product Information
CAS number	6009-70-7
EC index number	607-007-00-3
EC number	214-202-3
Grade	ACS,ISO,Reag. Ph Eur
Hill Formula	C₂H₈N₂O₄ * H₂O
Chemical formula	(NH₄)₂C₂O₄ * H₂O
Molar Mass	142.11 g/mol
HS Code	2917 11 00
Structure formula Image
Quality Level	MQ300

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Physicochemical Information
Density	1.5 g/cm3 (20 °C)
Melting Point	133 °C (decomposition)
pH value	6.5 (41.8 g/l, H₂O, 20 °C)
Bulk density	480 kg/m3
Solubility	41.8 g/l (anhydrous substance)

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Safety Information according to GHS
Hazard Pictogram(s)	\n
Hazard Statement(s)	H302: Harmful if swallowed.\nH319: Causes serious eye irritation.
Precautionary Statement(s)	P264: Wash skin thoroughly after handling.\nP280: Wear eye protection/ face protection.\nP301 + P312: IF SWALLOWED: 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.\nP337 + P313: If eye irritation persists: Get medical advice/ attention.\nP501: Dispose of contents/ container to an approved waste disposal plant.
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.

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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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Specifications
Assay (manganometric)	99.5 - 101.0 %
Insoluble matter	≤ 0.005 %
Chloride (Cl)	≤ 0.0005 %
Nitrate (NO₃)	≤ 0.002 %
Sulfate (SO₄)	≤ 0.002 %
Heavy metals (as Pb)	≤ 0.0005 %
Ca (Calcium)	≤ 0.001 %
Fe (Iron)	≤ 0.0002 %
K (Potassium)	≤ 0.001 %
Mg (Magnesium)	≤ 0.001 %
Na (Sodium)	≤ 0.001 %
Residue on ignition (as sulfate)	≤ 0.02 %
Corresponds to ACS,ISO,Reag. Ph Eur