麦克林 aladdin 罗恩 Adamas/阿达玛斯 玻尔 Greagent Alfa sigma-aldrich

97% 99.0% min 99% ≥99.0% (RT) ≥99.0%ACSreagent, ≥99.0% N<0.0005%，HJ636-2012 ≥99.0% 总氮含量≤0.0005%，适用于HJ636-2012 ≥99.0%,ACSreagent 99.5% 环保级，99.5% ≥99.5%AR 99.5%+RG 99.9% 99.99% trace metals 99.99% metals basis 99.99%（高纯试剂） for analysis, 99+%RG AR,99.5% puriss. p.a., ACS reagent, ≥99.0% (RT) ACS,≥99.0%(RT) GR,99.9% for analysis ACS, 99+%ACS ACS reagent, ≥99.0% 15g/L 20g/L, 介质: H2O 25g/L 40g/L, 介质: NaOH, 适用于HJ 636-2012 4g/L, 介质: H2O 50g/L, 介质: H2O 总氮N≤0.0005%，适用于HJ636-2012

250ml 500ml 1kg 1KG 2.5kg 5G 5kg 10kg 12×500g 12X500g 25g 25GR 25kg(纸板桶) 50g 100g 100G 250g 250G 250GR 500g 500G 500GR 500gR 2500g