1,2,6-Trichlorobenzene
1,2,3-Trichlorobenzene
CAS: 87-61-6
Molecular Formula: C6H3Cl3
1,2,6-Trichlorobenzene - Names and Identifiers
1,2,6-Trichlorobenzene - Physico-chemical Properties
| Molecular Formula | C6H3Cl3 |
| Molar Mass | 181.45 |
| Density | 1,69 g/cm3 |
| Melting Point | 51-53 °C (lit.) |
| Boling Point | 218-219 °C (lit.) |
| Flash Point | 260°F |
| Water Solubility | INSOLUBLE |
| Solubility | 0.02g/l |
| Vapor Presure | 0.07 mm Hg ( 25 °C) |
| Vapor Density | 6.25 (vs air) |
| Appearance | neat |
| Color | White crystals or platelets |
| Merck | 14,9630 |
| BRN | 956882 |
| Storage Condition | 2-8°C |
| Explosive Limit | 2.5-6.6%(V) |
| Refractive Index | 1.5693 (estimate) |
| Physical and Chemical Properties | Trait plate crystal (in alcohol). melting point 53.4 ℃ boiling point 218~219 ℃ solubility insoluble in water, slightly soluble in ethanol, soluble in ether. |
| Use | Mainly used in organic synthesis |
1,2,6-Trichlorobenzene - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R38 - Irritating to the skin R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S36/37 - Wear suitable protective clothing and gloves. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36 - Wear suitable protective clothing. |
| UN IDs | UN 3077 9/PG 3 |
| WGK Germany | 3 |
| RTECS | DC2095000 |
| TSCA | Yes |
| HS Code | 29036990 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | LC50 2,177 to 3,084 μg/L (soil porewater concentration) for earthworm (Eisenia andrei) and 2,540 to 3,084 μg/L (soil porewater concentration) for earthworm (Lumbricus rubellus) (Van Gestel and Ma, 1993). |
1,2,6-Trichlorobenzene - Nature
Open Data Verified Data
1,2,4-chlorobenzene; 1,3,5-chlorobenzene; 1,2,3-trichlorobenzene isomers. The physical properties are as follows: a large amount of commercially available products 1,2,4-chlorobenzene and a small amount of 1,2,3-and 1,3,5-trichlorobenzene and other mixtures have a distillation range of 208 to 218 °c. The relative density was 1. 46. Refractive index 572. Specific heat capacity 0.84 J/g. The latent heat of evaporation was 243 J/g. Flammable. With the vast majority of organic solvents and oils miscible, insoluble in water.
Last Update：2024-01-02 23:10:35
1,2,6-Trichlorobenzene - Preparation Method
Open Data Verified Data
- The dried HCH was heated in a pyrolysis kettle to obtain trichlorobenzene, and a large amount of hydrogen chloride was by-produced.
- The alkali hydrolysis method of Six Six Six non-toxic body and milk of Lime Co-heat that is obtained trichlorobenzene, while by-products a large number of calcium chloride solution.
The above two methods of trichlorobenzene are 1,2,4 trichlorobenzene; 1,3,5 trichlorobenzene; 1,2,3 trichlorobenzene three isomers of the mixture, with 1,2,4 A three chlorobenzene as the main component.
Last Update：2022-01-01 10:40:38
1,2,6-Trichlorobenzene - Use
Open Data Verified Data
can be used as a solvent for the preparation of pesticides, dyes, transformer oil, electrolyte, lubricating oil and heat transfer medium.
Last Update：2022-01-01 10:40:37
1,2,6-Trichlorobenzene - Safety
Open Data Verified Data
- This product is toxic, has a stimulating effect on the skin, but the volatility is small, with narcotic, human can cause acute or chronic Mental Disorder. 1,2,4-chlorobenzene rats oral LD50 756mg/kg. The control method can refer to chlorobenzene. The operator should wear protective gear.
- pack in iron drum and store in a cool and ventilated place. Transportation shall be carried out in accordance with regulations for hazardous materials.
Last Update：2022-01-01 10:40:39
1,2,6-Trichlorobenzene - Reference Information
| Henry's Law Constant | 8.36, 10.3, 13.2, 20.6, and 26.5 at 2.0, 6.0, 10.0, 18.0, and 25.0 °C, respectively (EPICS-SPME,Dewulf et al., 1999) |
| LogP | 4.139 at 25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| uses | mainly used in organic synthesis mainly used in the preparation of pyromellitic dianhydride, also used in the production of polyimide resin, dyes, plasticizers, surfactants, etc. |
| production method | 1. The dried HCH was heated in a pyrolysis kettle to obtain trichlorobenzene, and a large amount of hydrogen chloride was by-produced. Alkali hydrolysis of Six Six Six non-toxic body and milk of lime heat that is obtained trichlorobenzene, while by-products a large number of calcium chloride solution. Trichlorobenzene obtained by the above two methods is 1,2, 4-trichlorobenzene; 1,3, 5-trichlorobenzene; 1,2, 3-trichlorobenzene three kinds of isomers mixture, 1,2,4-trichlorobenzene as the main component. The content of 1,2, 4-trichlorobenzene in trichlorobenzene produced by milk of lime method is more than 75%, and 1,2, 3-trichlorobenzene accounts for about 20%. |
| category | pesticide |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 1830 mg/kg; Intraperitoneal-mouse LD50: 1390 mg/kg |
| flammability hazard characteristics | open flame flammability; Combustion releases toxic chloride smoke; Hydrolysis of hydrochloric acid |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from food additives |
| fire extinguishing agent | water, foam, carbon dioxide, sand |
| spontaneous combustion temperature | 1059 ° F. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 21:04:16
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