| 2,2-bis(p-Chlorophenyl)-1,1,1-trichloroethane;DDT;4,4'-Dichlorodiphenyltrichloroethane;Dichlorodiphenyltrichloroethane
|
|
Molecular formula : C14H9Cl5
MW : No. 50-54 354.50
CAS-29-3
nature : colorless crystalline needle. 108.5-109 ° C melting point, boiling point of 260 ° C. Soluble in pyridine and 1,4-dioxane. The 100ml solubilities were : acetone 58g and 45g carbon tetrachloride, chlorobenzene teeth, ethanol 2g, ether yield of 28. Do not dissolve in water, acid and alkali.
Preparation : trichloroacetaldehyde with a chlorinated benzene in fuming sulfuric acid generated from the presence of condensation. Add into the condensation of chloral, chlorobenzene, stirring under 71/92 fuming sulfuric acid. Condensation of layered materials Still, the net release waste acid, acid DDT chlorobenzene solution washed with hot water, and then washed with sodium hydroxide solution. Then distillation recovery chlorobenzene, residues of DDT that is melting over to drum mold cooling crystallization derived products. Condensation in the 10-23 ° C, which also joined the condensation reaction of condensation Waste (intron reaction to the formation of acid chloride) or inhibition reaction to reduce the chlorine acid generation, the 71/92 sulfate for about 2.5 hours. A goods DDT powder on the original-content �74.0%.
purposes : DDT was widely used pesticides, with stomach poisoning and tag, converted into powder, emulsion or finishes use. China's previous major combat phase Boll pests, fruit borer, farm crops armyworms and other vegetables Pieris rapae. Also for environmental health, combating mosquitoes, flies and other bugs. DDT are not easily degradable into non-toxic substances, the use of which could easily lead to accumulation of air pollution. Plant residues of DDT, through the "food chain" or other means and animals, deposition poisoning, the impact on human health has been prohibited. But DDT some industrial uses, including its raw materials for pesticides, DDT also need to be as intermediates, such as Dicofol.
Notice:Each item can have many explanations from different angels. If you want grasp the item comprehensively,please see below "more details data". |
| Structure: |
 |
| More Detailed Data: |
1) 2,2-bis(p-Chlorophenyl)-1,1,1-trichloroethane;DDT;1,1-(2,2,2-trichloroethylidene)bis[4-chloro-Benzene];1,1,1-trichloro-2,2-bis(p-chlorophenyl)-ethan;1,1'-(2,2,2-trichloroethylidene)bis(4-chlorobenzene);1,1,1-trichloor-2,2-bis(4-chloor fenyl)-ethaan
2) DDT;dichlorodiphenyltrichloroethane;Accotox;Anofex;Arkotine;Benzochloryl
3) DDT;dichlorodiphenyltrichloroe-thane
4) DDT
5) deflagration to detonation transition;DDT
6) 1,1,1-Trichloroethane;Methylchloroform;Ethane, 1,1,1-trichloro-
7) 1,1,1-trichloroethane;methyl chloroform
8) 1,1,1-trichloroethane;methyl chloroform
9) 1,1,1-trichloroethane
10) Methylchloroform;Methyltrichloromethane;1,1,1-Trichloroethane
|
| Notice |
Some description was translated by software and the data is only as a reference. |
| Patent: |
1) Extension seat
2) Electronic device able to turnover upward opposite to another on casing
3) Power supply management system for palm equipment
4) Power supply management method for palm equipment
5) Portable device for logging on network capable of settin gperiod for storing data
6) Dynamic method for adjusting consumption power of computer system
7) Circuit set attched on peripheral of computer for detecting physiological signal and sensing brightness
8) Transform method for customizing graphic interface of browser
9) External adapter for general serial bus interface
10) Input system of computers
|
|
|
|
Home Products Search Properties Search ä¸æ–‡ç‰ˆ