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Tolylene diisocyanate

Names

[ CAS No. ]:
26471-62-5

[ Name ]:
Tolylene diisocyanate

[Synonym ]:
2,6-Toluene diisocyanate
2,4-diisocyanatotoluene
EINECS 247-722-4
2,6-Toluene diisocyanate,mixture of
20 percent,mixture of
80 percent,diisocyanatotoluene
Tolylene Diisocyanate
2,4-toluene diisocyanate,80 percent,2,6-toluene diisocyanate,20 percent,mixture of
Tolylene Diisocyanate,2,4
MFCD01778251
2,4-Toluene diisocyanate
2,4-Sulfonitrophenol NV
2,4-toluene diisocyanate,2,6-toluene diisocyanate,mixture of
Toluene Diisocyanate

Chemical & Physical Properties

[ Density]:
1.1±0.1 g/cm3

[ Boiling Point ]:
248.4±0.0 °C at 760 mmHg

[ Melting Point ]:
19.5-21.5ºC

[ Molecular Formula ]:
C9H6N2O2

[ Molecular Weight ]:
174.156

[ Flash Point ]:
110.5±29.3 °C

[ Exact Mass ]:
174.042923

[ PSA ]:
58.86000

[ LogP ]:
3.47

[ Vapour Pressure ]:
0.0±0.5 mmHg at 25°C

[ Index of Refraction ]:
1.559

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
NQ9490000
CHEMICAL NAME :
Isocyanic acid, methyl-m-phenylene ester
CAS REGISTRY NUMBER :
26471-62-5
LAST UPDATED :
199712
DATA ITEMS CITED :
41
MOLECULAR FORMULA :
C9-H6-N2-O2
MOLECULAR WEIGHT :
174.17

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Open irritation test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
4130 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
600 ppm/6H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1950 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
9700 ppb/4H
TOXIC EFFECTS :
Behavioral - excitement Lungs, Thorax, or Respiration - dyspnea Gastrointestinal - changes in structure or function of salivary glands
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
11 ppm/4H
TOXIC EFFECTS :
Behavioral - excitement Lungs, Thorax, or Respiration - dyspnea Gastrointestinal - changes in structure or function of salivary glands
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
>10 mL/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
12700 ppb/4H
TOXIC EFFECTS :
Behavioral - excitement Lungs, Thorax, or Respiration - dyspnea Gastrointestinal - changes in structure or function of salivary glands
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
15600 mg/kg/13W-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - structural or functional change in trachea or bronchi Related to Chronic Data - death
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
10 ug/m3/24H/22W-C
TOXIC EFFECTS :
Brain and Coverings - recordings from specific areas of CNS Blood - changes in bone marrow (not otherwise specified) Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
100 ppb/6H/81D-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - other changes
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
2 ppm/6H/5D-I
TOXIC EFFECTS :
Related to Chronic Data - death
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
2830 ppb/6H/3W-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - structural or functional change in trachea or bronchi Blood - changes in erythrocyte (RBC) count Nutritional and Gross Metabolic - weight loss or decreased weight gain
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
7800 mg/kg/13W-I
TOXIC EFFECTS :
Related to Chronic Data - death
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1 ppm/6H/5D-I
TOXIC EFFECTS :
Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
46 ppb/1W-C
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - structural or functional change in trachea or bronchi
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
1 ppm/6H/5D-I
TOXIC EFFECTS :
Related to Chronic Data - death
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
29 ppb/8W-C
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - structural or functional change in trachea or bronchi
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
31800 mg/kg/2Y-I
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria Blood - leukemia Skin and Appendages - tumors
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
63 gm/kg/2Y-I
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria Blood - tumors Blood - lymphoma, including Hodgkin's disease
TYPE OF TEST :
TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
63600 mg/kg/2Y-I
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria Gastrointestinal - tumors Liver - tumors
TYPE OF TEST :
Sex chromosome loss and nondisjunction
TYPE OF TEST :
Heritable translocation test

MUTATION DATA

TYPE OF TEST :
Sister chromatid exchange
TEST SYSTEM :
Rodent - hamster Ovary
REFERENCE :
SCIEAS Science. (American Assoc. for the Advancement of Science, 1333 H St., NW, Washington, DC 20005) V.1- 1895- Volume(issue)/page/year: 236,933,1987 *** REVIEWS *** IARC Cancer Review:Animal Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 39,287,1986 IARC Cancer Review:Human No Adequate Data IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 39,287,1986 IARC Cancer Review:Group 2B IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,56,1987 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO TOLUENE DIISOCYANATE-air:CA lowest feasible conc. REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X3117 No. of Facilities: 2226 (estimated) No. of Industries: 32 No. of Occupations: 45 No. of Employees: 38881 (estimated) No. of Female Employees: 4723 (estimated)

Safety Information

[ Hazard Codes ]:
Xn

[ Risk Phrases ]:
R26

[ Safety Phrases ]:
23-36/37/39-45

[ RIDADR ]:
UN 2078

[ RTECS ]:
NQ9490000

[ Packaging Group ]:
II

[ Hazard Class ]:
6.1(a)

[ HS Code ]:
2929101000

Customs

[ HS Code ]: 2929101000

[ Summary ]:
2929101000. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:6.5%. General tariff:30.0%


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