NAVIGATION
- Major Products
-
Products
- 3D Printing Materials
- Alternative Energy
- Biomaterials
- Foam Materials
- Food Grade Materials
- Functional Materials
- Glass and Ceramics
- Magnetic Materials
- Material Building Blocks
- Metals and Materials
- Micro-Nano Electric Materials
- Nanomaterials
- Organic and Printed Electronics
- Photonic and Optical Materials
- Polymer Science
- Resins
- Order
Toluene-2,4-Diisocyanate
Catalog Number
ACMA00017202
Product Name
Toluene-2,4-Diisocyanate
Category
Polymers
Description
Toluene-2,4-diisocyanate appears as colorless to yellow or dark liquid or solid with a sweet, fruity, pungent odor. Melting point 68°F (20° C). Evolves CO2 when moist. This can cause over-pressurization in an enclosed space.Toxic and carcinogenic. Used in polyurethane foams, coatings in floor and wood finishes, sealers, paints, concrete sealers for aircraft and tank trucks, elastomers in clay pipe seals, elastomers and coatings, and crosslinking agent for nylon. Rate of onset: Immediate Persistence: Hours - weeks Odor threshold: 0.4 - 2 ppm Source/use/other hazard: Polyurethane (wood coatings, foam), nylon industries; skin irritant.;Liquid;Liquid;COLOURLESS-TO-PALE YELLOW LIQUID OR CRYSTALS WITH PUNGENT ODOUR. TURNS PALE YELLOW ON EXPOSURE TO AIR.;Colorless to pale-yellow solid or liquid (above 71°F) with a sharp, pungent odor.;Colorless to pale-yellow solid or liquid (above 71°F) with a sharp, pungent odor.
IUPAC Name
2,4-diisocyanato-1-methylbenzene
Molecular Weight
174.16g/mol
Molecular Formula
C9H6N2O2;CH3C6H3(NCO)2;C9H6N2O2
Canonical SMILES
CC1=C(C=C(C=C1)N=C=O)N=C=O
InChI
InChI=1S/C9H6N2O2/c1-7-2-3-8(10-5-12)4-9(7)11-6-13/h2-4H,1H3
InChI Key
DVKJHBMWWAPEIU-UHFFFAOYSA-N
Boiling Point
484 °F at 760 mm Hg (EPA, 1998);251.0 °C;251 °C;251 °C;484°F;484°F
Melting Point
67.1 to 70.7 °F (EPA, 1998);20.5 °C;20.5 °C;22 °C;67.1-70.7°F;71°F
Flash Point
270 °F (EPA, 1998);260 °F (127 °C);127 °C c.c.;270°F for an 80/20% 2,4/ 2,6 TDI mixture;260°F
Density
1.2244 at 68 °F (EPA, 1998);1.2244 at 20 °C/4 °C;Relative density (water = 1): 1.2;1.2244 at 68°F;1.22
Solubility
Decomposes (NTP, 1992);Very soluble in acetone, benzene, ethyl ether;Soluble in ether. acetone, and other organic solvents;Miscible with alcohol (decomposition). Miscible with ether, acetone, benzene, carbon tetrachloride, chlorobenzene, diglycol monomethyl ether, kerosene, olive oil;Solubility in water: reaction;Insoluble
Color/Form
Water-white to pale yellow liquid;Clear faintly yellow liquid;Colorless to pale yellow, solid or liquid (above 71 °F);Liquid at room temperature ... Darkens on exposure to sunlight
Complexity
265
Covalently-Bonded Unit Count
1
EC Number
209-544-5;607-844-4;617-935-0
Exact Mass
174.042927g/mol
Formal Charge
0
Heavy Atom Count
13
ICSC Number
0339
Log P
log Kow = 3.74 (est);3.4
MeSH Entry Terms
2,4 Toluenediisocyanate;2,4-Diisocyanate, Toluene;2,4-Toluenediisocyanate;Diisocyanate, Toluene;Diisocyanate, Tolylene;Diisocyanatotoluene;Toluene 2,4 Diisocyanate;Toluene 2,4-Diisocyanate;Toluene Diisocyanate;Tolylene Diisocyanate
Monoisotopic Mass
174.042927g/mol
NSC Number
56759;4791
Odor
Sharp, pungent
Other Experimental
BP: 126 °C at 11 mm Hg. Reacts with water with evolution of carbon dioxide.;Reacts with compounds containing active hydrogen (may be violent);Concentrated alkaline compounds such as sodium hydroxide or tert-amines may cause run-away polymerization.;Saturated liquid density: 75.879 lb/cu ft; liquid heat capacity: 0.398 Btu/lb-F; liquid thermal conductivity: 1.179 Btu-inch/hr-sq ft-F; liquid viscosity: 3.769 Centipoise (all at 85 °F);Saturated vapor pressure: 0.004 lb/sq in; saturated vapor density: 0.00011 lb/cu ft (all at 130 °F);VP: 0.5 mm Hg at 25 °C /80% 2,4:20% 2,6/;MISCIBLE WITH ALCOHOL, ETHER, ACETONE /80% 2,4:20% 2,6/;MISCIBLE WITH CARBON TETRACHLORIDE /80% 2,4:20% 2,6/;MISCIBLE WITH BENZENE, KEROSENE /80% 2,4:20% 2,6/;Specific gravity: 1.22 at 25 °C; BP: 250 °C; FP: 11.3-13.5 °C /80% 2,4:20% 2,6/;Hydroxyl radical reaction rate constant = 6.26X10-12 cu cm/molec-sec at 25 °C (est)
Refractive Index
Index of refraction: 1.5654 at 25 °C/D
Rotatable Bond Count
2
RTECS Number
CZ6300000
Stability
Darkens on exposure to sunlight.
UNII
17X7AFZ1GH
UN Number
2078;2078;2078;2078
Vapor Density
6 (EPA, 1998) (Relative to Air);6.0 (Air = 1);Relative vapor density (air = 1): 6.0;6
Vapor Pressure
1 mm Hg at 176 °F (EPA, 1998);0.01 mmHg;8.0X10-3 mm Hg at 20 °C;Vapor pressure, Pa at 20 °C: 1.3;0.01 mmHg at 77°F;(77°F): 0.01 mmHg
XLogP3
3.9
MSDS
COA
Spec Sheet
- CAS
- Size
- Purity
- Price
- Availability
- Quantity
- Order
- ---
- ---
- ---
- Inquiry
-
online inquiry
※ Please kindly note that our products are for research use only.
Products
Alternative Energy
Micro-Nano Electric Materials
Nanomaterials
Organic and Printed Electronics
Photonic and Optical Materials
Polymer Science
Share
Interested in our Services & Products? Need detailed information?
