Ammonium oxalate monohydrate

NH4)2C2C>4 H20 (c). Berthelot131 measured the heat of solution of ammonium oxalate monohydrate. 

Ammonium oxalate (0-1 7m or 2- 5 %). Dissolve 25 g ammonium oxalate monohydrate, (COONH4)2.H20, in 900 ml water and after complete dissolution dilute to 1 litre. 

For substrates that will withstand it, Czeraecki and coworkers have developed a work-up procedure for PDC reactions that should be i licable to other reagents. Oxalate is known to be a very good ligand for chromium(in). Thus treatment of a reaction mixture with an aqueous solution of oxalic acid dihydrate and ammonium oxalate monohydrate readily removes residual chromium(III) salts. This procedure is particularly useful for large scale reactions. 

NH4)2C204 H20 Incompatible with oxidizers, acids, ammonium acetate furfliryl alcohol, silver, sodium chlorite, sodium hypochlorite. Attacks many metals. Heat of decomposition or fire produces fumes of ammonia, nitrogen oxides, carbon monoxide, carbon dioxide, formic acid. Attacks steel. On small fires, use foam, dry powder, water, or COj extinguishers. AMMONIUM OXALATE, MONOHYDRATE (6009-70-7) (NH4)2C204 Incompatible with oxidizers, acids, ammonium acetate furfiiryl alcohol, silver, sodium chlorite, sodium hypochlorite. Attacks many metals. Heat of decomposition or fire produces fumes of ammonia, nitrogen oxides, carbon monoxide, carbon dioxide, formic acid. Attacks steel. On small fires, use foam, dry powder, water, or COj extinguishers. 

AMMONIUM OXALATE, MONOHYDRATE (6009-70-7) Forms explosive compound with sodium hypochlorite. Incompatible with furfuryl alcohol, silver, sodium chlorite, sodium hypochlorite. Attacks many metals. 

The Cartesian coordinates of the atoms of an ammonium ion in crystalline ammonium oxalate monohydrate, as determined by X-ray diffraction and neutron diffraction, are as follows. The standard deviations apply to each of the coordinates. Calculate the N-H bond lengths, with standard deviations, and comment on the differences between values given by the two techniques. 

Ammonium oxalate (8%) Dissolve 80 g of ammonium oxalate monohydrate [(NH4)2 C2O4 H2O] in 1 litre of distilled water. 

---