品 名: 草酸铵(c2h8n2o4·h2o) 规格: 分析纯
product: ammonium oxalate,monohylrate specification : a r
标准依据: hg/t 3—976—81 批号: 20120512
standard: hg/t 3—976—81 batch no: 20120512
检 验 项 目 t e s t i t e m |
检 验 标 准 t e s t s t a n d a r d |
检 验 结 果 t e s t r e s u l t |
性状 (characters) |
无色透明结晶 (colourless transparent crystal) |
合格(conform) |
含量 (assay) |
99.8% |
99.9% |
澄清度实验 (appearance of solution) |
应符合规定 (comply with the standard) |
合格 (conform) |
水不溶物 (water-insoluble) |
0.005% |
0.002% |
水溶液反应 (water solution reaction) |
应符合规定 (comply with the standard) |
合格 (conform) |
灼烧残渣 (residue on ignition) |
0.01% |
0.005% |
氯化物 (chloride) |
0.001% |
0.0008% |
硫化合物 (sulfur compounds) |
0.01% |
0.006% |
铁 (iron) |
0.0005% |
0.0002% |
重金属 (heavy metal) |
0.001% |
0.0003% |
结论(conclusion):符合分析纯之规定(the above product complies with ar) |