Bis(trichloromethyl)carbonate，BTC for short. The molecular formula of solid phosgene is C3Cl6O3 and the molecular weight is 296.75; solid phosgene is a white to quasi-white crystal with a phosgene odor; Melting point78-81℃, Boiling Point203 --206℃(partial decomposition); Insoluble in water, soluble in chlorobenzene, toluene, dichloromethane, chloroform and other organic solvents.
Solid phosgene has the following advantages compared with gas phosgene:
Safe to use, and environmentally friendly, no gas phosgene is highly toxic, nor strong tear - inducing double phosgene, only for general toxic material treatment.
Solid crystal, easy to use, accurate measurement.
Can realize the gas phosgene can not achieve the backdrop reaction;
Equivalent reaction, high yield of reaction products.
Can be stored and transported.
Specification
| Items | Specification |
| Appearance | White crystal |
| Assay % | ≥99.5 |
| Melting point (℃) | 79-81 |
| Loss on drying % | ≤0.5 |
| Ignition residue % | ≤0.1 |
Application
1. Used as a highly toxic phosgene and two-phosgene in the synthesis of alternative products 2. It is safe and convenient with low toxicity and wide application. 3. Used in the synthesis of chloroformate, isocyanate, polycarbonate and acid chloride
Product packaging 1, plastic bucket: 25KG / bucket. 2. 100KG blue drum packaging.
Starage: 1,Store in a cool, dry and ventilated place. 2,Can not be mixed with alkaline chemicals.