HEXACHLOROBENZENE
Hexachlorobenzene
CAS: 118-74-1
Molecular Formula: C6Cl6
HEXACHLOROBENZENE - Names and Identifiers
| Name | Hexachlorobenzene |
| Synonyms | NO BUNT BUNT-CURE(R) BUNT-NO-MORE(R) Perchlorobenzene PERCHLOROBENZENE HEXACHLOROBENZENE Hexachlorobenzene Hexachlorobenzene (Hummel) Benzene,1,2,3,4,5,6-hexachloro- |
| CAS | 118-74-1 |
| EINECS | 204-273-9 |
| InChI | InChI=1/C6Cl6/c7-1-2(8)4(10)6(12)5(11)3(1)9 |
| InChIKey | CKAPSXZOOQJIBF-UHFFFAOYSA-N |
HEXACHLOROBENZENE - Physico-chemical Properties
| Molecular Formula | C6Cl6 |
| Molar Mass | 284.78 |
| Density | 1.5691 |
| Melting Point | 227-229°C(lit.) |
| Boling Point | 323-326°C(lit.) |
| Flash Point | 11°C |
| Water Solubility | Practically insoluble in water |
| Vapor Presure | 1.45 x l0-3 Pa (20 °C) |
| Appearance | morphology neat |
| Exposure Limit | No exposure limit has been set for this com pound. Carcinogenicity: Animal SufficientEvidence, Human Limited Evidence (IARC). |
| Merck | 13,4696 |
| BRN | 1912585 |
| Storage Condition | APPROX 4°C |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Refractive Index | 1.5691 (estimate) |
| Physical and Chemical Properties | Pure hexachlorobenzene is a colorless, elongated, needle-like crystal. Industrial products are light red crystals with a slight fragrance. |
| Use | Trace analysis of organic elements used as chlorine standard, also used in organic synthesis |
HEXACHLOROBENZENE - Risk and Safety
| Risk Codes | R45 - May cause cancer R48/25 - R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R67 - Vapors may cause drowsiness and dizziness R65 - Harmful: May cause lung damage if swallowed R62 - Possible risk of impaired fertility R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R48/20 - R38 - Irritating to the skin R11 - Highly Flammable R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R66 - Repeated exposure may cause skin dryness or cracking R36/38 - Irritating to eyes and skin. R36 - Irritating to the eyes |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. S36/37 - Wear suitable protective clothing and gloves. S33 - Take precautionary measures against static discharges. S29 - Do not empty into drains. S16 - Keep away from sources of ignition. S9 - Keep container in a well-ventilated place. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 2729 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | DA2975000 |
| Hazard Class | 6.1(b) |
| Packing Group | III |
| Toxicity | LC50 for ?ve freshwater species 0.05-0.2 mg/L (Hartley and Kidd, 1987); acute oral LD50 for rats 10,000 mg/kg (RTECS, 1985). |
HEXACHLOROBENZENE - Upstream Downstream Industry
HEXACHLOROBENZENE - Nature
| Henry's Law Constant | 6.11 at 25°C (continuous flow sparger, Sproule et al., 1991) |
| Exposure Limits | No exposure limit has been set for this com pound. Carcinogenicity: Animal Sufficient Evidence, Human Limited Evidence (IARC). |
| (IARC) Carcinogen Classification | 2B (Vol. Sup 7, 79) 2001 |
| EPA chemical information | Hexachlorobenzene (118-74-1) |
Last Update：2024-04-29 13:16:10
HEXACHLOROBENZENE - Uses and synthesis methods
features
in pure products are colorless fine needle or small flake crystals, in industrial products are light yellow and light brown crystals, and then slightly fragrant smell. It is insoluble in water and only soluble in organic solvents such as ether, chloroform, and hot benzene. This chemical is combustible and may also be carcinogenic. It is irritating. If it is decomposed by high heat, it will produce toxic and corrosive flue gas. The products after combustion and decomposition: carbon monoxide, carbon dioxide and hydrogen chloride.
Production method
In industrial production, hexachlorobenzene is mainly prepared by direct chlorination of benzene or lower chlorobenzene. Lower chlorobenzene mainly refers to the by-product dichlorobenzene in the production of monochlorobenzene and the trichlorobenzene obtained from the BHC invalid system. It can also be directly chlorinated by BHC. 1. Trichlorobenzene is heated to 110 ℃ by trichlorobenzene chlorination method, kept warm and dried for 1h, chlorine can be chlorinated, heat is released during reaction, the initial temperature is 100-120 ℃, the final temperature is 260-270 ℃, chlorination is 10-14h, when the temperature starts to drop, it means that the chlorination reaction has reached the end point, chlorine is stopped, molten material is put into a crystallization box containing water, and hexachlorobenzene is crystallized into grains under stirring. Wash with cold water to obtain hexachlorobenzene. 2. BHC invalid body direct chlorination method invalid body is dried by hot air to a water content of less than 1%, added to a melting kettle, heated to 150-170 ℃ for melting, and then added to a scrubber and chloride tower. The temperature of the scrubber is kept at 210-230 ℃. After the chlorination tower is chlorinated, the temperature is slowly increased according to the reaction heat, and the chlorination speed is controlled to increase the reaction temperature by 2-3 ℃ per hour. The chlorine-containing tail gas of the chloride tower is absorbed by the scrubber and then sent to the by-product hydrochloric acid system. When the chlorination temperature reaches 260-270 ℃, and quickly put it into a crystallization tank filled with water to quench and crystallize to obtain the finished product.
category
Pesticides
Toxicity classification
Poisoning
Acute toxicity
oral-rat LD50: 10000 mg/kg; Oral-mouse LD50: 4000 mg/kg
flammability hazard characteristics
Combustion produces toxic chloride gas
storage and transportation features
The warehouse is ventilated and dry at low temperature; stored and transported separately from food ingredients
Fire extinguishing agent
mist water, foam, carbon dioxide, sand.
occupational standards
TWA 0.5 mg/m3; STEL 0.9 mg/m3
Last Update：2024-04-29 13:20:25
HEXACHLOROBENZENE - Security information
| toxic substance data | 118-74-1(Hazardous Substances Data) |
Last Update：2024-04-29 13:21:45
HEXACHLOROBENZENE - Introduction
Hexachlorobenzene is an organic compound. It is a colorless to light yellow crystal with a strong irritating odor. The following is an introduction to the properties, uses, production methods, and safety information of hexachlorobenzene:
Nature:
1. Soluble in organic solvents such as ethanol, ether, and carbon disulfide, but almost insoluble in water.
2. Stable to light, heat, and air, but can undergo decomposition under strong alkaline conditions.
3. It is a strong carcinogen that is toxic to the environment and biological systems.
Use:
1. Hexachlorobenzene are widely used in industrial applications, such as as raw materials for the production of pesticides, dyes and drugs.
2. It can also be used as a solvent for extracting natural products or conducting organic synthesis reactions.
3. Hexachlorobenzene can also be used as a mordant and electron microscope sample preparation agent in the laboratory.
Method:
The preparation of Hexachlorobenzene is generally carried out by a method of chlorinating benzene. For example, nitrobenzene and ferrous chloride can be used as catalysts, and a chlorination reaction can be carried out under heating conditions to produce Hexachlorobenzene.
Safety Information:
1. Hexachlorobenzene is a kind of environmental pollutants and harmful chemicals, should follow the relevant safety procedures for treatment.
2. Contact with Hexachlorobenzene may cause irritation and corrosive effects. Avoid contact with skin and eyes, and ensure that the operation is under good ventilation.
3. Hexachlorobenzene is a potential carcinogen, so you should avoid inhaling its vapors or dust, and take appropriate personal protective measures, such as wearing protective glasses, gloves and respirators.
4. When using and handling Hexachlorobenzene, relevant laws and regulations and safety operation procedures must be observed to reduce potential hazards and risks.
Last Update：2024-04-29 13:24:14
Supplier List
Spot supply
Product Name: *Lindane Impurity 4 (Hexachlorobenzene) Visit Supplier Webpage Request for quotationCAS: 118-74-1
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052
Wechat: 15671228036
Spot supply
Product Name: *Lindane Impurity 4 (Hexachlorobenzene) Visit Supplier Webpage Request for quotationCAS: 118-74-1
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052
Wechat: 15671228036
View History
Raw Materials for HEXACHLOROBENZENE
Downstream Products for HEXACHLOROBENZENE