Toluene Di Isocyanate (TDI 80/ 20)
Toluene Diisocyanate TDI 80-20 is a toxic and highly reactive organic compound. The chemical formula for TDI is CH3C6H3(NCO)2. TDI is often marketed as TDI 80/20. TDI 80-20 is a mixture blend of 80% 2,4-toluene diisocyanate and 20% 2,6-toluene diisocyanate. The clear to pale yellow liquid organic compound is toxic, has a sharp odor, and is highly reactive. It is used in the manufacture of polyurethane flexible foam (slab/molding) and non-foam urethanes.
- Synonyms: 4-Methyl-m-phenylene diisocyanate, TDI
- Content %: 99.7 Min.
- Isomer Ratio:
2,4- toluene diisocyanate (%): 80 +/- 1
2,6- toluene diisocyanate (%): 20 +/1 - CAS #: 26471-62-5
- EC Number: 247-722-4
- Molar Mass: 174.16 g/mol
- Chemical Formula: (NCO)₂C₆H₃CH₃
- Hill Formula: C₉H₆N₂O₂
- Acidity (as Hcl, ppm): 15 Max.
- Hydrolyzable Chloride (ppm): 40 Max.
- Total Chloride (ppm): 180 Max.
- Color (APHA): 15 Max.
Description
Toluene Di Isocyanate (TDI 80/ 20)
Toluene diisocyanate (TDI) is a member of the diisocyanate family, which is a key component in many items we use every day. Toluene Diisocyanate is a highly adaptable chemical with numerous industrial applications. The reaction of diaminotoluene with phosgene produces TDI. Toluene diisocyanate is becoming increasingly popular.
Junyuan Petroleum Group being the leading Toluene diisocyanate supplier in China ranks among the top companies providing Toluene diisocyanate chemicals to various Industries. Toluene Diisocyanate (TDI) is a volatile, colourless to pale yellow liquid that is soluble in many organic solvents. It is a synthetic combination of the 2,4- and 2,6-isomers. These isomers are principally employed in the production of polyurethane foams. Toluene diisocyanate generates poisonous emissions of cyanides and nitrogen oxides when heated to break down. Toluene diisocyanate produces tissue irritation, particularly of the mucous membranes, and can result in serious respiratory issues in people. These isomers are likely to be carcinogenic to humans.
Chemical Formula: C9H6N2O2 or CH3C6H3(NCO)2
Junyuan Petroleum Group is one of the most distinguished Toluene diisocyanate distributors in China.
Properties of TDI:
- At normal temperatures, they exist as a liquid or a crystal.
- Basically, it is colourless, but when exposed to air, it turns yellow.
- A pungent odour
- Water and organic solvents are both soluble.
- Highly reactive
- Exist in 2 isomers: 2,4 TDI and 2,6 TDI
Applications OF TDI:
- TDI is primarily used in the production of polyurethanes for use in applications such as bedding, furniture, packaging, carpet underlay, and so on. It is also used in the manufacture of paints, sealants, adhesives, and elastomers.
- TDI is used in the production of car parts, which improves fuel efficiency and energy conservation.
- The synthetic recreational surface sector uses TDI to create products for both indoor and outdoor surfaces.
- TDI appears to be an excellent alternative for floor restoration, concrete sealing, and waterproofing walls.
- TDI is used in the installation of windshields and side windows in automobiles and trucks.
Contact Junyuan Petroleum Group – the noted Toluene Diisocyanate exporter in China for all of your industrial chemical needs. Junyuan Petroleum Group’s Toluene Diisocyanate TDI 80-20 is an aromatic isocyanate that is produced for reaction with polyols to form polyurethanes. It is widely used in the production of polyester-based soft foam, high-bearing sponges, semi-rigid ester foam, and paint.
Note: Junyuan Petroleum Group exports/supplies Toluene Diisocyanate (TDI) as well as other chemicals to Africa, America, Europe, Asia including UAE (Including all 7 emirates – Abu Dhabi, Dubai, Sharjah, Ajman, Umm Al-Quwain, Fujairah, Ras Al Khaimah), Qatar, Egypt, Saudi Arabia, Kuwait, Bahrain, USA, and Canada.
Junyuan Petroleum Group’s TDI 80-20 is available for shipping throughout China with one (1) week lead time. Please call us for details. TDI 80-20 is packed in bulk, totes (IBC tanks) and drums.
Categories: All Products, C.A.S.E. (Coatings, Adhesives, Sealants, Elastomers)
Junyuan Petroleum Group’s Toluene Diisocyanate TDI 80-20 is a toxic and highly reactive organic compound. The chemical formula for TDI is CH3C6H3(NCO)2. TDI is often marketed as TDI 80/20.
Commercial production of toluene diisocyanate involves the conversion of toluene to a diamine, which is reacted with phosgene to yield TDI, a clear to pale yellow liquid with a sharp odor. Junyuan Petroleum Group’s TDI 80-20 is a mixture blend of 80% 2,4-toluene diisocyanate and 20% 2,6-toluene diisocyanate. TDI 80-20 is mainly used in the production of polyurethane foam and other polyurethane products including elastomers, synthetic leather, coated fabrics, paints and adhesives.
Toluene diisocyanate (TDI 80/20)
Chemical Name: Toluene diisocyanate (TDI 80/20)
Other Names: Tolylene diisocyanate,
Methyl phenylene diisocyanate
Cas NO.: Mixture
Chemical formula: C9H6N2O2
Toluene Diisocyanate
TDI (Toluene Diisocyanate), the basic material for PU (Poly Urethane), and TDI derivatives such as L-75 and IL-50 are widely used in industrial sectors and people’s daily lives as the materials for foams, polyurethane paint, synthetic leather, adhesive, and etc.
Soft foam is used for shoes, furniture, automobiles, bedding, and toys. Semi-rigid foam is used for automobile interior materials.
TECHNICAL DATA SHEET
|
ITEMS
|
KONNATE T-80
|
|
PURITY (%)
|
MIN 99.7
|
|
ISOMER RATION 2,4 – TOLUENE DIISOCYANATE (%)
2,6 – TOLUENE DIISOCYANATE (%)
|
80+/-1
20+/-1
|
|
ACIDITY (AS HCI, PPM)
|
MAX. 15
|
|
HYDROLYZABLE CHLORIDE (PPM)
|
MAX. 40
|
|
TOTAL CHLORIDE (PPM)
|
MAX. 180
|
|
COLOR (APHA)
|
MAX. 15
|
Packing: In 250kg drums, 20mt per FCL or in 27mt ISO tanks
Applications: The isocyanate functional groups in TDI react with hydroxyl groups to form carbamate (urethane) links. The two isocyanate groups in TDI react at different rates: The 4-position is approximately four times more reactive than the 2-position. 2,6-TDI is a symmetrical molecule and thus has two isocyanate groups of similar reactivity, similar to the 2-position on 2,4-TDI. However, since both isocyanate groups are attached to the same aromatic ring, reaction of one isocyanate group will cause a change in the reactivity of the second isocyanate group.
It is used in the production of flexible polyurethane foams.
TDI 80/20 SPECIFICATIONS:
| Test Item | Index | Test Result |
| Purity(WT)% | 99.7min | 99.8 |
| 2,4-Isomer% | 80+/-1 | 79.6 |
| 2,6-Isomer% | 20+/-1 | 19.6 |
| Acidity%(HCL) | 0.0015MAX | 0.0004 |
| Hydrolyzable Chloride(WT)% | 0.004MAX | 0.0033 |
| Color (APHA) | 15 MAX | 5 |
| Total Chloride(WT)% | 0.018 MAX | 0.005 |
| The content of Toluene Diisocyanate%≥ | 99.5 | 99.93 |
| IsomerRatio(2,4/2,6)≤ | 80.0/20.0±1.0 | 79.8/20.2 |
| Chroma(Hazen)≤ | 25 | 10 |
| Product Name | Toluene diisocyanate 80/20 |
| Cas NO. | 26471-62-5 |
| Molecular formula | C18H12N4O4 |
| Einecs | 247-722-4 |
| Appearance | Colorless to pale yellow liquid |
| Packing and Loading Qty | 250kgs/red iron drum or blue iron drum,20tons/20ft |
Technical toluene diisocyanate is either 100% 2,4- or a mixture of 2,4- and 2,6-isomers. TDI is a common name. CAS number of the mixture is 26471-62-5. Depending on the degree of exposure, periodic medical examination is suggested.
TDI 80/20 Polyol Toluene Diisocyanate
TDI 80/20: Mainly refers to a mixture of 80% by mass of 2,4-toluene diisocyanate and 20% by mass of 2,6-toluene diisocyanate. Sometimes also refers to toluene diisocyanate, aliases: toluene diisocyanate, toluene, and methyl phenylene diisocyanate. Nitration of toluene produces dinitrotoluene, and then reduces toluene diamine. Toluene diamine reacts with phosgene to obtain TDI. Colorless liquid. There is a pungent smell. The color becomes darker in daylight. Sodium hydroxide or tertiary amine can cause polymerization. Reacts with water to produce carbon dioxide. It is miscible with ethanol (decomposition), ether, acetone, carbon tetrachloride, benzene, chlorobenzene, kerosene, olive oil and diethylene glycol methyl ether. poisonous. May cause cancer. It is irritating.
Characteristics of TDI 80/20:
1. Toluene Diisocyanate TDI 80/20 is belongs to isocyanate products, which is widely used in producing polyurethane elastomers, top grade polyurethane coating and other industries.
2. Toluene Diisocyanate TDI 80/20 is isocyanate ester product, can replaced all or part of the t80, can improved the compression load of the product , Diisocyanate TDI 80/20 is widely used in the production of polyester-based soft foam, high-bearing sponges, semi-rigid ester foam, high resilience,slow rebound , paint and other industries.
3. Toluene Diisocyanate TDI 80/20 is an aromatic isocyanate, a precursor to Polyurethanes (PU) that mostly used for making flexible foams. Diisocyanate TDI 80/20 is produced for reaction with polyols to form polyurethanes.
TDI 80/20 STORAGE:
TDI 80/20 containers should be kept properly closed and stored indoors in a well-ventilated and fire-proof place.When opening the containers, operators should wear go les, gloves and rubber aprons.Containers should be handled carefully to avoid damage. In case of leakage, transfer it into another proper container in a well- ventilated and dry place. When opening the cap, use an opener or wrench. Once the cap is loosened, pause until the high pressure in the container equalizes with the atmospheric pressure, then open the cap slowly.
TDI 80/20 TOLUENE DIISOCYANATE
Specification:
| Test Item | Index | Test Result |
| Purity(WT)% | 99.7min | 99.8 |
| 2,4-Isomer% | 80+/-1 | 79.6 |
| 2,6-Isomer% | 20+/-1 | 19.6 |
| Acidity%(HCL) | 0.0015MAX | 0.0004 |
| Hydrolyzable Chloride(WT)% | 0.004MAX | 0.0033 |
| Color (APHA) | 15 MAX | 5 |
| Total Chloride(WT)% | 0.018 MAX | 0.005 |
Appearance: Colorless to pale yellow liquid with irritating odour.
Chemical Formular：C9H6O2N2
TDI Chemical Structure:
Molecular Weight：174
CAS:584-84-9
Einecs No : 209-544-5
UN NO.:2078
Dangerous cargo Class NO. : 6.1
HS Code : 2929102100
Grade Standard : TECH GRADE 99.7%min
Packaging Details :
1、250KG net in new steel drum ，250KG/DRUM (Tare weight: 19kg) 1FCL=20MT,80DRUMS
2、 Tank (about 20MT)
SPECIFICATIONS:
| PARAMETERS | unit | STANDARD | Test Result |
| Appearance | |||
| Purity of Toluene
Diisocyanate(WT) |
% | 99.5min | 99.7 |
| 2,4-Isomer | % | 80 ± 1 | |
| 2,6-Isomer | % | 20±1 | 80.0/20.0 |
| Hydrolysis chlorine | % | ≤0.01 | 0.0027 |
| Acidity(as HCL) | % | ≤0.004 | 0.001 |
| Hydrolyzable Chloride | PPM | 25max | 15 |
| Total Chloride(WT) | PPM | 180max | 55 |
Application :
Toluene diisocyanates (TDI80/20)are used primarily to manufacture flexible polyurethane foams for use in furniture, sofa,mattress, vehicle seats. Other, smaller uses are for polyurethane elastomers (for automobile bumper covers, industrial rollers, sport soles and boots, and mechanical goods) and coatings (for automotive refinishing, wood finishes, and high-performance anti-corrosion coatings)
Toluene diisocyanate (TDI) has two isomers: 2,4-toluene diisocyanate and 2,6-toluene diisocyanate.
English abbreviations: TDI; 2,4-diisocyanate toluene ester; 2,4-diisocyanate toluene ester; toluene-2,4-diisocyanate; 2,4-diisocyanate-1-methyl benzene; toluene diisocyanate; toluene diisocyanate; toluene 2,4-diisocyanate; 2,4-diisocyanate; 2,4-diisocyanate toluene
Molecular formula: C9H6N2O2; CH3C6H3 (NCO) 2.
Industrial uses
TDI (toluene diisocyanate) is one of the commonly used polyisocyanates, and polyisocyanates are polyurethane (PU) materials and important basic raw materials. TDI commonly used in polyurethane industry is a mixture of 2,4-TDI and 2,6-TDI isomers, including three commonly used brands: TDI-80/20, TDI-100 and TDI-65/35. The preceding figures indicate the content of 2,4-TDI in the composition. For example, 80 in TDI-80/20 indicates that its composition is 80% 2,4-TDI and 20% 2,6-TDI; 100 in TDI-100 basically represents 2,4-TDI (about 98%) and 2,6-TDI has few isomers. It is mainly used for producing flexible polyurethane foam and polyurethane elastomers, coatings, adhesives and so on.
