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Congo red

指示剂级

  • Commodity number:RE04000018
  • Goods number:RE04000018-25g
  • Brand:Hanhong
  • Income integral:5
  • Abbreviation: Congo red
  • CAS: 573-58-0
  • MF: C32H22N6Na2O6S2
  • MW: 696.66
  • Original price: ¥54.00-¥394.00
  • Present price: ¥54.00-¥394.00
Freight number Package Original price Present price Order quantity Stock describe
RE04000018-25g 25g ¥54.00 ¥54.00
4 deliver goods within 1-2 days
RE04000018-100g 100g ¥108.00 ¥108.00
6 deliver goods within 1-2 days
RE04000018-500g 500g ¥394.00 ¥394.00
3 deliver goods within 1-2 days
|上海瀚鸿化工科技有限公司^

Parameters

Properties
Properties【外观性状】棕红色粉状物,易溶于热水,溶于10份冷水,溶液呈黄红色;溶于乙醇呈橙色;极微溶于丙酮,几乎不溶于醚。溶于乙醇呈橙色,微溶于丙酮。在浓硫酸中呈深蓝色,稀释后呈浅蓝色有蓝针对沉淀。其水溶液加浓盐酸生成戏光蓝色沉淀;加乙酸生成呈蓝光紫色转为较红的蓝色沉淀。在浓烧碱中不溶解。对酸、盐敏感,即使从空气中吸收二氧化碳,也会使色泽变蓝暗,但用稀纯碱液处理可恢复原来色泽。【熔点 】>360 °C(lit.)【密度 】0.995 g/mL at 25 °C【储存条件 】Flammables area【色指数 】22120【水溶解性 】soluble【Merck 】14,2498【BRN 】3894858
Specification And Standard
Production And Usage
Biological properties|酸碱指示剂[pH3.0(蓝紫)-5.0(红)],吸附指示剂,沉淀蛋白质,检测胃液中的游离盐酸、胚胎切片、植物粘蛋白、纤维素、弹性组织等染色,测定硼酸、氰化物和盐酸等^
Packing And Storage
Safety
Spectrum And References
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Update2018-11-22wf