| Identification | More | 【Name】
Tolylene-2,4-diisocyanate | 【CAS】
584-84-9 | 【Synonyms】
1-METHYL-1,3-PHENYLENE DIISOCYANATE
2,4-DIISOCYANATOTOLUENE
2,4-TDI
2,4-TOLUENEDIISOCYANATE
2，4-Tolylene diisocyanate
4-METHYL-1,3-PHENYLENE DIISOCYANATE
4-METHYL-M-PHENYLENE DIISOCYANATE
4-METHYL-M-PHENYLENE DIISOTHIOCYANATE
4-METHYL-M-PHENYLENE ISOCYANATE
CRESORCINOL DIISOCYANATE
SCURANATE T100
SCURANATE T80
SCURANATE T80P
SCURANATE TX
TDI
TOLUENE-2,4-DIISOCYANATE
TOLUENE DIISOCYANATE
TOLUYLENE 2,4-DIISOCYANATE
TOLYLENE-2,4-DIISOCYANATE
2,4-diisocyanate-1-methylbenzene | 【EINECS(EC#)】
209-544-5 | 【Molecular Formula】
C9H6N2O2 | 【MDL Number】
MFCD00002011 | 【Molecular Weight】
174.16 | 【MOL File】
584-84-9.mol |
| Chemical Properties | Back Directory | 【Appearance】
colourless to light yellow liquid | 【mp 】
20-22 °C(lit.)
| 【bp 】
124-126 °C18 mm Hg(lit.)
| 【density 】
1.225 g/mL at 25 °C
| 【vapor density 】
6 (vs air)
| 【vapor pressure 】
0.03 mm Hg ( 25 °C)
| 【refractive index 】
n20/D 1.568(lit.)
| 【Fp 】
250 °F
| 【storage temp. 】
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. Incompatible with strong oxidizing agents. Corrodes some copper and aluminium alloys. | 【Water Solubility 】
reacts | 【Sensitive 】
Moisture Sensitive | 【Merck 】
14,9530 | 【BRN 】
744602 | 【CAS DataBase Reference】
584-84-9(CAS DataBase Reference) | 【NIST Chemistry Reference】
Benzene, 2,4-diisocyanato-1-methyl-(584-84-9) | 【EPA Substance Registry System】
584-84-9(EPA Substance) |
| Safety Data | Back Directory | 【Hazard Codes 】
T+ | 【Risk Statements 】
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 Statements 】
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S36/37:Wear suitable protective clothing and gloves .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | 【RIDADR 】
UN 2078 6.1/PG 2
| 【WGK Germany 】
2
| 【RTECS 】
CZ6300000
| 【F 】
10-21 | 【HazardClass 】
6.1 | 【PackingGroup 】
II | 【HS Code 】
29291010 | 【Hazardous Substances Data】
584-84-9(Hazardous Substances Data) |
| Hazard Information | Back Directory | 【Reactivity Profile】
TOLUENE-2,4-DIISOCYANATE is explosive in the form of vapor when exposed to heat, flame or sparks. Undergoes potentially violent polymerization reaction with strong bases or acyl chlorides. Reacts with water to liberate carbon dioxide. Potential explosion if stored in polyethylene containers due to absorption of water through the plastic. Emits very toxic fumes of oxides of nitrogen when heated to decomposition [Lewis, 3rd ed., 1993, p. 1251]. | 【Air & Water Reactions】
Reacts with water with the evolution of carbon dioxide and formation of insoluble polyureas that are relatively nontoxic and inert [Merck 11th ed. 1989)]. | 【Health Hazard】
Can cause death. Contact with skin may cause allergic eczema. Substance is very corrosive to eyes. Chronic exposure may cause chronic lung disease. As a vapor TDI is a powerful irritant to the respiratory tract. Chronic loss of respiratory function may occur. Acute asthmatic bronchitis or frank asthma may occur. A splash in the eyes of workmen has caused keratitis and conjunctivitis. This compound causes inflammation of the skin, also chemical pneumonitis and pulmonary edema. | 【Fire Hazard】
When heated to decomposition TOLUENE-2,4-DIISOCYANATE emits very toxic fumes of cyanide and nitrogen oxides. Reacts violently with amines, alcohol, bases and warm water causing fire and explosion hazards. Avoid strong oxidizers, water, acids, bases, amines, etc., cause foam and splatter. Avoid heating. Hazardous polymerization may occur. Concentrated alkaline compound such as sodium hydroxide or tertiary amines may cause run-away polymerization. Slow, not hazardous polymerization may occur above 235F. |
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