Pallets Packing | 20'FCL | 40'FCL | ||
With | Without | With | Without | |
20KG/Fibre Drum
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20 MT
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Product Name: O-Phenanthroline
Cas No.:5144-89-8
Molecular formula:C12H8N2·H2O
Molecular weight: 198.22
Product details:
Appearance: monohydrate is white crystalline powder. The melting point is 93-94 ℃, the melting point of anhydrous matter is 117 ℃, soluble in 300 parts of water, 70 parts of benzene, and soluble in alcohol and acetone.
Application: o-phenanthroline and ferrous ion form orange complex under the condition of pH4 ~ 5, and then determine the iron content by spectrophotometry.
Quality standard:
Items | Standard |
Assay(C12H8N2·H2O),% | ≥ 99.0 |
Molar and absorption coefficients of iron complexes, L/cm.mol | 1.15ⅹ104 |
Ethanol dissolution test | Qualified |
Burning residue(sulfate),% | 0.1 |