字典 资讯 展会 路线 最近搜索:推荐工具:批量查询CAS转化学名CAS校验 结构式搜索委托采购 CAS No. 7775-14-6 (连二亚硫酸钠)Msds CAS No:7775-14-6 英文名称:Sodium dithionite 分子量:174.096 分子式:Na2O4S2 基本信息物化属性安全信息生产及用途MSDS图谱 ...
中文名是连二亚硫酸钠。连二亚硫酸钠，也称为保险粉，是一种白色砂状结晶或淡黄色粉末化学用品，熔点300℃（分解） ，引燃温度 250 ℃，不溶于乙醇，溶于氢氧化钠溶液，遇水发生强烈反应并燃烧。连二亚硫酸钠的水溶液性质不稳定，有极强的还原性，属于强还原剂。暴露于空气中易吸收氧气而氧化，同...
(供选择的试剂:稀盐酸、稀硝酸、BaCl2溶液、KMnO 4溶液实验步骤预期现象和结论3.Na 2S2O4的应用六价铬对人体有毒,Na2S2O4可以用于处理含铬废水,使含六价铬的离子浓度降低而达到排放标准,即含六价铬的离子浓度≤0.5mgL1。具体操作是:在含六价铬(CrO)的酸性废水中先加入Na 2S2O4,再加入过量的石灰水,生成...
CAS No: 7775-14-6 Purity: 90% ,88% ,85% MF: Na2S2O4 MW: 174.11 MP:300 °C BP:1390°C Density:2.13 Storage temp.:Store at RT. Solubility:250 g/L (20°C) Water Solubility:250 g/L (20°C) CAS DataBase Reference:7775-14-6(CAS DataBase Reference) NaCO3(wt%):2-6 ...
China Factory for Sodium Hydrosulfite 88% Na2s2o4 CAS 7775-14-6 Hisea US$650.00 10 Tons (MOQ) Product Details Customization: Available CAS No.: 7775-14-6 Formula: Na2o4s2Contact Supplier Chat Qingdao Hisea Chem Co., Ltd.Gold Member Since 2007 Audited Supp...
Reference FOB Price Get Latest Price US $830.00-880.00/ Ton|10 Tons(Min. Order) CAS No.:7775-14-6 Formula:Na2s2o4 EINECS:231-890-0 Certification:ISO Purity:80%~90% Type:Sodium Hydrosulfite FavoritesShare Send your message to this supplier ...
Reference FOB Price Get Latest Price US $830.00-880.00/ Ton|10 Tons(Min. Order) CAS No.:7775-14-6 Formula:Na2s2o4 EINECS:231-890-0 Certification:ISO Purity:80%~90% Type:Sodium Hydrosulfite FavoritesShare Send your message to this supplier ...
Номер CAS 7775-14-6 формула na2o4s2 EINECS 231-890-0 Внешность Порошок Сертификация CCIC, ТИК, RoHS, ISO Чистота 90% ~ 99% Тип Сульф...
China Factory for Sodium Hydrosulfite 88% Na2s2o4 CAS 7775-14-6 1. Detail description: Product Name Sodium Hydrosulphite/Sodium Hydrosulfite Purity 85% 88% 90% CAS NO. 7775-14-6 Appearance White Crystal Powder MF Na2S2O4 HS Code 2831101000 EINECS NO. 231-89...
CAS 127-18-4 Industrial Grade Solvent Perchloroethylene PCE Cheap Price US$1,030.00-1,050.00 / Ton Industrial Grade High Purity 99.9%Min Perchloroethylene/PCE CAS No. 127-18-4 US$1,030.00-1,050.00 / Ton CAS 127-18-4 Tetrachloroethylene/Perchloroethylene ...