Bromochlorodifluoromethane
Bromochlorodifluoromethane
CAS: 353-59-3
Molecular Formula: CBrClF2
Bromochlorodifluoromethane - Names and Identifiers
| Name | Bromochlorodifluoromethane |
| Synonyms | CF2BrCl Freon 12V1 flugex12b1 Freon 12B1 Halon 1211 fluorocarbon1211 Fluorocarbon 1211 Chlorobromodifluoromethane Chlorodifluorobromomethane bromochlorodifluoro-methan Bromochlorodifluoromethane |
| CAS | 353-59-3 |
| EINECS | 206-537-9 |
| InChI | InChI=1/CBrClF2/c2-1(3,4)5 |
Bromochlorodifluoromethane - Physico-chemical Properties
| Molecular Formula | CBrClF2 |
| Molar Mass | 165.365 |
| Density | 2.052g/cm3 |
| Melting Point | -160,5°C |
| Boling Point | 1.5°C at 760 mmHg |
| Water Solubility | 15.8mg/L(0 ºC) |
| Vapor Presure | 1720mmHg at 25°C |
| Refractive Index | 1.4 |
| Physical and Chemical Properties | Chemical properties of low toxic gases. Melting point -160.5 ℃, boiling point -4 ℃. |
| Use | Used as fire extinguishing agent, refrigerant and metal surface lubricant |
Bromochlorodifluoromethane - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S23 - Do not breathe vapour. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | 1974 |
| Hazard Class | 2.2 |
| Toxicity | LCLo inhalation in dog: 5pph/30M |
Bromochlorodifluoromethane - Upstream Downstream Industry
| Raw Materials | Chlorine Bromine |
| Downstream Products | Foscarnet sodium KRYPTON DELAPRIL BROMODIFLUOROMETHANE |
Bromochlorodifluoromethane - Uses and synthesis methods
overview
Bromo reaction is an important reaction to obtain new compounds in organic synthesis, and many brominates such as bromochlorodifluoromethane are also important intermediates, among which bromofluoroalkanes are an important class of fluorine-containing intermediates, which can be used in the synthesis of new fluorine-containing medicines, pesticides and surfactants. At present, the preparation of brominated fluoroalkanes by thermal bromination is mostly used to mix fluoroalkanes with bromine, preheating and vaporization, and then enter the bromination reactor for bromination reaction. The shortcomings of this method are that the single-pass conversion rate of raw materials is low, the single-pass utilization rate of bromine is low, the energy consumption is high, and the post-treatment process load is large.
use
1. Used as refrigerant, metal surface lubricant, rocket fuel and high-efficiency fire extinguishing agent, aviation generator protective agent.
2. Used as a refrigerant
3. Used as fire extinguishing agent, refrigerant and metal surface lubricant
production method
P> obtained by the interaction of difluorochloromethane and bromine: difluorochloromethane and bromine enter the reactor after passing through the brominator, and control the reaction temperature at about 500 ℃ to generate crude difluorochlorobromomethane. The reaction gas (F1211 crude product) first washes off most of the bromine and hydrogen bromide in the water washing tower, and then enters the alkaline washing tower to clean the trace amount of bromine and hydrogen bromide. Then the water is separated in the gas-water separator, compressed and deoxidized by a compression pump, and enters the distillation tower to separate difluoro-chloromethane, and then enters the rectification tower to separate high-boiling matter, and the purified difluoro-chlorobromomethane is the finished product after condensation. Packed in steel cylinders. Industrial product content ≥ 995.%. Raw material consumption (kg/t) difluoromonochloromethane 1000 bromine 1200category
Compressed gas and liquefied gas
toxicity classification
low toxicity
acute toxicity
inhalation-rat LC50: 200000 PPM/15 points
storage and transportation features
The warehouse is ventilated and dry at low temperature; stored separately from flammable materials
fire extinguishing agent
Water
occupational standards
STEL 1000 mg/m3
Last Update：2024-04-10 22:29:15
Bromochlorodifluoromethane - Security information
| Hazard Note | Irritant |
| toxic substance data | 353-59-3(Hazardous Substances Data) |
Last Update：2024-04-10 22:29:15
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Raw Materials for Bromochlorodifluoromethane
Downstream Products for Bromochlorodifluoromethane