2,4-Tolylene diisocyanate
Tolylene-2,4-diisocyanate
CAS: 584-84-9
Molecular Formula: C9H6N2O2
2,4-Tolylene diisocyanate - Names and Identifiers
2,4-Tolylene diisocyanate - Physico-chemical Properties
| Molecular Formula | C9H6N2O2 | |||||||||||||||||||||||||||||||||||||||||||||||||
| Molar Mass | 174.16 | |||||||||||||||||||||||||||||||||||||||||||||||||
| Density | 1.225g/mLat 25°C | |||||||||||||||||||||||||||||||||||||||||||||||||
| Melting Point | 20-22°C(lit.) | |||||||||||||||||||||||||||||||||||||||||||||||||
| Boling Point | 124-126°C18mm Hg(lit.) | |||||||||||||||||||||||||||||||||||||||||||||||||
| Flash Point | 250°F | |||||||||||||||||||||||||||||||||||||||||||||||||
| Water Solubility | reacts | |||||||||||||||||||||||||||||||||||||||||||||||||
| Solubility | Miscible with ether, acetone, benzene, carbontetrachloride and chlorobenzene. | |||||||||||||||||||||||||||||||||||||||||||||||||
| Vapor Presure | 0.03 mm Hg ( 25 °C) | |||||||||||||||||||||||||||||||||||||||||||||||||
| Vapor Density | 6 (vs air) | |||||||||||||||||||||||||||||||||||||||||||||||||
| Appearance | Liquid | |||||||||||||||||||||||||||||||||||||||||||||||||
| Specific Gravity | 1.225 | |||||||||||||||||||||||||||||||||||||||||||||||||
| Color | Colorless | |||||||||||||||||||||||||||||||||||||||||||||||||
| Odor | Sharp, pungent odor detectable at 0.02 to 0.4 ppm | |||||||||||||||||||||||||||||||||||||||||||||||||
| Exposure Limit | TLV-TWA 0.0355 mg/m3 (0.005 ppm)(ACGIH and NIOSH); STEL or ceiling/10min 0.142 mg/m3 (0.02 ppm) (ACGIH,NIOSH, and OSHA); IDLH 71 mg/m3(10 ppm) (NIOSH). | |||||||||||||||||||||||||||||||||||||||||||||||||
| Merck | 14,9530 | |||||||||||||||||||||||||||||||||||||||||||||||||
| BRN | 744602 | |||||||||||||||||||||||||||||||||||||||||||||||||
| Storage Condition | 2-8°C | |||||||||||||||||||||||||||||||||||||||||||||||||
| Stability | Stable, but decomposes in the presence of moisture. Also heat and light sensitive. Readily polymerizes in contact with base. Reacts with compounds containing active hydrogen. | |||||||||||||||||||||||||||||||||||||||||||||||||
| Sensitive | Moisture Sensitive | |||||||||||||||||||||||||||||||||||||||||||||||||
| Explosive Limit | 9.5% | |||||||||||||||||||||||||||||||||||||||||||||||||
| Refractive Index | n20/D 1.568(lit.) | |||||||||||||||||||||||||||||||||||||||||||||||||
| Physical and Chemical Properties |
|
2,4-Tolylene diisocyanate - Risk and Safety
| Hazard Symbols | T+ - Very toxic |
| Risk Codes | R26 - Very Toxic by inhalation R36/37/38 - Irritating to eyes, respiratory system and skin. R40 - Limited evidence of a carcinogenic effect R42/43 - May cause sensitization by inhalation and skin contact. R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S23 - Do not breathe vapour. S36/37 - Wear suitable protective clothing and gloves. 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. |
| UN IDs | UN 2078 6.1/PG 2 |
| WGK Germany | 2 |
| RTECS | CZ6300000 |
| FLUKA BRAND F CODES | 10-21 |
| TSCA | Yes |
| HS Code | 29291010 |
| Hazard Class | 6.1 |
| Packing Group | II |
| Toxicity | Acute oral LD50 for rats 5,800 mg/kg, wild birds 100 mg/kg (quoted, RTECS, 1985). |
2,4-Tolylene diisocyanate - Nature
Open Data Verified Data
colorless transparent or light yellow flammable liquid. There is a strong irritating odor. Boiling point 247 °c. Melting point 19. 5~21.5 °c. Flash point 127 °c. The relative density was 1. 217. With ethanol (decomposition), diethylene glycol ether, ether, acetone, carbon tetrachloride, benzene, chlorobenzene, kerosene, olive oil miscible. It reacts with water to produce carbon dioxide, which can react with compounds containing active hydrogen.
Last Update：2024-01-02 23:10:35
2,4-Tolylene diisocyanate - Preparation Method
Open Data Verified Data
first, molten 2, 4-aminotoluene is dissolved in chlorobenzene and reacted with phosgene at a low temperature of 35 to 45 ° C., and then reacted with phosgene at a high temperature of 130 ° C. Or lower. After completion of the reaction, the hydrogen chloride and the remaining phosgene were driven out with nitrogen, Chlorobenzene was distilled out, and finally vacuum distillation was performed to obtain the finished product. Can also be nitrotoluene by nitration, reduction, 2,4 A Two amino toluene, and then by phosgenation to obtain the finished product. For other new methods, see phenyl isocyanate (C351).
Last Update：2022-01-01 10:55:06
2,4-Tolylene diisocyanate - Use
Open Data Verified Data
A linear polyurethane (polyurethane) resin is formed by reacting with a diol. Can be used for the preparation of synthetic fibers, foam plastics, rubber, coatings and adhesives. The dimer is a vulcanizing agent for the kneaded polyurethane rubber. In addition to being used alone, a mixture of 80:20 and 65:35 with 2, 6-toluene diisocyanate can also be used for the production of rigid and flexible polyurethane foams and the like.
Last Update：2022-01-01 10:55:05
2,4-Tolylene diisocyanate - Safety
Open Data Verified Data
highly toxic. Has a strong stimulating effect on the skin, eyes and mucous membranes. Long-term exposure can cause bronchitis, a few cases of asthma, bronchiectasis and even pulmonary heart disease. Rats at the concentration of (0.5~1) x 10 -6, inhalation 6 hours a day, inhalation 5~10 days, can be lethal. After the human body inhaled 0.0005mg/L, the occurrence of severe Cough, shortness of breath. The highest wind device in the air. The operator should wear protective equipment. Using galvanized iron drum packaging, net weight per barrel 35kg. Store in a ventilated, dry place. Packaging should be sealed to avoid moisture absorption. Hazardous materials shall be stored and transported according to regulations.
Last Update：2022-01-01 10:55:07
2,4-Tolylene diisocyanate - Reference Information
| LogP | 3.43 at 22℃ |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| uses | mainly used in polyurethane products, including foam, polyurethane coatings, polyurethane rubber; polyimide fibers and adhesives also have some applications. Used for the synthesis of fiber, foam and rubber, and also used as an adhesive |
| production method | dinitrotoluene is generated by nitration of toluene, and then toluene diamine is obtained by reduction. TDI (mainly 2,4-isomer) is obtained by the reaction of toluenediamine and phosgene. |
| category | toxic substances |
| toxicity classification | highly toxic |
| acute toxicity | inhalation-rat LC50: 98 mg/m3/4 h; Inhalation-mouse LC50: 70 mg/m3/4 h |
| stimulation data | skin-rabbit 500 mg/24 hours moderate; Eye-rabbit 100 mg severe |
| explosive hazard characteristics | blastable when mixed with air |
| flammability hazard characteristics | open flame is combustible; high heat decomposes toxic nitrogen oxide gas |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; Store separately from oxidants, food additives, acids and alkalis |
| fire extinguishing agent | foam, mist water, carbon dioxide, sand, dry powder. Disable acid-base fire extinguishing agent. |
| occupational standard | TLV-TWA 0.005 PPM(0.036 mg/m3); STEL 0.02 PPM (0.14 mg/m3); CL 0.02PPM (0.14 mg/m3) |
| spontaneous combustion temperature | >619°C |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
| immediate life-threatening and health concentration | 2.5 ppm |
Last Update：2024-04-09 19:05:09
Supplier List
Featured ProductsSpot supply
Product Name: Tolylene-2,4-diisocyanate Request for quotationCAS: 584-84-9
Tel: +86-18721521379
Email: 18721521379@163.com
Mobile: +86-18721521379
Wechat: 18721521379
Featured ProductsSpot supply
Product Name: Tolylene-2,4-diisocyanate Request for quotationCAS: 584-84-9
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Spot supply
Product Name: Tolylene-2,4-diisocyanate Request for quotationCAS: 584-84-9
Tel: +86-17505207175
Email: r@reformchem.com
Mobile: +86-17505207175
QQ: 3787852685
Wechat: chemical6666
Spot supply
Product Name: Tolylene-2,4-diisocyanate Request for quotationCAS: 584-84-9
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Wechat: chemical6666
Spot supply
Product Name: Tolylene-24-diisocyanate Visit Supplier Webpage Request for quotationCAS: 584-84-9
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
Spot supply
Product Name: 2,4-Toluene diisocyanate Visit Supplier Webpage Request for quotationCAS: 584-84-9
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Product Name: Tolylene-2,4-diisocyanate Request for quotation
CAS: 584-84-9
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 584-84-9
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Featured ProductsSpot supply
Product Name: Tolylene-2,4-diisocyanate Request for quotationCAS: 584-84-9
Tel: +86-18721521379
Email: 18721521379@163.com
Mobile: +86-18721521379
Wechat: 18721521379
Featured ProductsSpot supply
Product Name: Tolylene-2,4-diisocyanate Request for quotationCAS: 584-84-9
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Spot supply
Product Name: Tolylene-2,4-diisocyanate Request for quotationCAS: 584-84-9
Tel: +86-17505207175
Email: r@reformchem.com
Mobile: +86-17505207175
QQ: 3787852685
Wechat: chemical6666
Spot supply
Product Name: Tolylene-2,4-diisocyanate Request for quotationCAS: 584-84-9
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Wechat: chemical6666
Spot supply
Product Name: Tolylene-24-diisocyanate Visit Supplier Webpage Request for quotationCAS: 584-84-9
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
Spot supply
Product Name: 2,4-Toluene diisocyanate Visit Supplier Webpage Request for quotationCAS: 584-84-9
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Product Name: Tolylene-2,4-diisocyanate Request for quotation
CAS: 584-84-9
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
CAS: 584-84-9
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
View History
2,4-Tolylene diisocyanate
8-Quinolinylisocyanide(8CI)
二辛基硫烷
5-Iodooctafluoro-3-oxapentanesulfonyl
Α-甲硫基乙酰肟
硫酸羟氯喹杂质34
ACID BLACK
甲基丙烯酸丁酯(含稳定剂氢醌)
Butanoic acid, 3-[(1,1-dimethylethyl)dioxy]-3-methoxy-, ethyl ester
118469-11-7
8-Quinolinylisocyanide(8CI)
二辛基硫烷
5-Iodooctafluoro-3-oxapentanesulfonyl
Α-甲硫基乙酰肟
硫酸羟氯喹杂质34
ACID BLACK
甲基丙烯酸丁酯(含稳定剂氢醌)
Butanoic acid, 3-[(1,1-dimethylethyl)dioxy]-3-methoxy-, ethyl ester
118469-11-7