Toluene diisocyanate CAS#26471-62-5

Boiling point 

247℃

density 

1.22

vapor pressure 

0.03 hPa ( 20 °C)

refractive index 

1.5660 to 1.5700

Fp 

137 °C

storage temp. 

Store below +30°C.

solubility 

miscible with Ether,Acetone,Benzene

form 

clear liquid

color 

Colorless to Light yellow

Odor

Sharp, pungent odor

explosive limit

0.9-9.5% (v/v)

Water Solubility 

124mg/L at 25℃

InChI

1S/C9H6N2O2/c1-7-2-3-8(10-5-12)4-9(7)11-6-13/h2-4H,1H3

InChIKey

DVKJHBMWWAPEIU-UHFFFAOYSA-N

SMILES

N(=C=O)c1c(ccc(c1)N=C=O)C

LogP

3.43 at 22℃

CAS DataBase Reference

26471-62-5(CAS DataBase Reference)

IARC

2B (Vol. 39, Sup 7, 71) 1999

EPA Substance Registry System

Toluene diisocyanate (26471-62-5)

Safety Information

Safety Statements 

23-36/37/39-45-24/25

RIDADR 

2078

WGK Germany 

WGK 2

RTECS 

NQ9490000

Autoignition Temperature

620°C

TSCA 

TSCA listed

HazardClass 

6.1(a)

PackingGroup 

II

HS Code 

29291090

Storage Class

6.1A - Combustible, acute toxic Cat. 1 and 2
very toxic hazardous materials

Hazard Classifications

Acute Tox. 1 Inhalation
Aquatic Chronic 3
Carc. 2
Eye Irrit. 2
Resp. Sens. 1
Skin Irrit. 2
Skin Sens. 1A
STOT SE 3

Hazardous Substances Data

26471-62-5(Hazardous Substances Data)

Toxicity

A designated hazardous waste (EPA). It is a colorless to yellow solid, melting at about 20°C. TDI and MDI (diphenylmethane diisocyanate) are used in the manufacture of polyurethane foams by reaction with polyhydroxy compounds. These foams are used for insulation, upholstering, etc. Exposure is commonly by inhalation of the vapor. Both TDI and MDI can cause irritation of eyes and mucous membranes, in severe cases leading to pulmonary edema. Sensitization to TDI is common and frequently rapid, leading to an allergic reaction and some loss of lung function. In the United Kingdom, the threshold limit value is 0.02 ppm for not more than 20 min, or 0.005 ppm for 8 h.