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di-Ammonium oxalate monohydrate, EssentQ®

- Synonyms: Oxalic acid ammonium salt
- (NH4)2C2O4·H2O
- M = 142,11 g/mol
- CAS [6009-70-7]
- EINECS-No.: 214-202-3
- Solub. in water: (20 ºC): ~ 45 g/l
- Melting point: 70 ºC
- EC-Index-No.: 607-007-00-3
- ADR: 6.1 T2 III UN 2811
- IMDG: 6.1 III UN 2811
- IATA/ICAO: 6.1 III UN 2811
- GHS-signal word: Warning
- GHS-H sentences: H302 - H312
- GHS-P sentences: P280 - P264 - P270 - P321 - P301+P312 - P501a
- Tariff number: 2917 11 00 99
- Applications: analytical chemistry, for determination of: calcium, lead, rare earth metals.

SPECIFICATIONS
assay (permanganometric): min. 99 %
insoluble in water: max. 0,02 %
pH (2,5 %, H2O): 6 - 7
chlorides (Cl): max. 0,005 %
phosphates (as PO4): max. 0,01 %
sulfates (SO4): max. 0,01 %
nitrates (NO3): max. 0,005 %
arsenic (As): max. 0,00005 %
calcium (Ca): max. 0,002 %
copper (Cu): max. 0,002 %
heavy metals (as Pb): max. 0,002 %
iron (Fe): max. 0,002 %
lead (Pb): max. 0,002 %
nickel (Ni): max. 0,002 %
residue on ignition (as SO4): max. 0,1 %