| 分子式 | |
| 其他事项 | 4.030025Pyridineanhydrous, with molecular sievesC5H5N M.=79.10CAS No. 110-86-1Minimum assay (GC) 99.5%Density at 20/4 0.981-0.982Identity (IR-spectrum) passes testMAXIMUM LIMIT OF IMPURITIESWater (H2O) 0.005% Piperidine (GC) 0.05% Chlorides (Cl) 0.0005% Sulfates (SO4) 0.0005% Ammonia (NH3) 0.002% Copper (Cu) 0.000002% Iron (Fe) 0.00001% Lead (Pb) 0.00001% Nickel (Ni) 0.000002% |
Stuart运送培养基
编号:HB8552 规格:250g 浓度:BR
铅矿
编号:VS 2038-81 规格:100 g 浓度:3组分
定制混标10 标准品
编号:CDGG-132910-03-1ml 规格:100mg/L于正己烷,1 mL
定制混标23 标准品
编号:CDGG-132923-01-1ml 规格:1000mg/L于正己烷,1 mL
定制混标20 标准品
编号:CDGG-132920-03-1ml 规格:100mg/L于正己烷,1 mL
定制混标25 标准品
编号:CDGG-132925-03-1ml 规格:100mg/L于正己烷,1 mL