≥1 piece |
Check item |
Specifications |
Check conclusion |
含量( Content ) |
99.0-101.00% |
99.55% |
水分( Loss on drying ) |
3-15 % |
13 .65% |
熔点( melting point ) |
226-230 ℃ |
227.2-229.7 ℃ |
鉴定( identification ) |
Positive |
Complies |
外观( appearance ) |
White crystals |
White crystals |
重金属( heavy metals ) |
≤10ppm |
< 10ppm |
砷( Arsenic ) |
≤ 3 ppm |
1ppm |
游离碱( Free alkalinity ) |
Complies with BP/USP |
Complies |
硒( Selenium ) |
≤ 0.003% |
<0.003% |
邻对甲苯磺酰氨 o-and p-Toluene sulphonamide |
≤ 0.001% of each |
<0.001% |
铅( Lead- on dry weight basis ) |
≤ 0.0001% |
<0.0001% |
结论( conclusion ) |
Comply with E954 BP2011,USP34 EP2003 |