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| CAS No.: | 99-97-8 |
|---|---|
| Name: | N,N-DIMETHYL-P-TOLUIDINE |
| Article Data: | 237 |
| Molecular Structure: | |
|
|
|
| Formula: | C9H13N |
| Molecular Weight: | 135.209 |
| Synonyms: | p-Toluidine,N,N-dimethyl- (7CI,8CI);1-(Dimethylamino)-4-methylbenzene;Dimethyl-p-toluidine; |
| EINECS: | 202-805-4 |
| Density: | 0.94 g/cm3 |
| Melting Point: | -25°C |
| Boiling Point: | 211.6 °C at 760 mmHg |
| Flash Point: | 84.2 °C |
| Solubility: | Miscible with alcohol, ether and chloroform. Immiscible with water. |
| Appearance: | light yellow liquid |
| Hazard Symbols: |
|
| Risk Codes: | 23/24/25-33-52/53 |
| Safety: | 28-36/37-45-61 |
| PSA: | 3.24000 |
| LogP: | 2.06100 |
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Chemistry
IUPAC Name: N,N,4-trimethylaniline
Synonyms of N,N,4-Trimethylaniline (CAS NO.99-97-8): Benzenamine, N,N,4-trimethyl- ; Dimethyl-p-toluidine ; Dimetil-p-toluidina ; N,N-Dimethyl-4-methylaniline ; N,N-Dimethyl-p-toluidine ; p-Methyl-N,N-dimethylaniline
CAS NO: 99-97-8
Molecular Formula: C9H13N
Molecular Weight: 135.21
Molecular Structure: 
EINECS: 202-805-4
H bond acceptors: 1
H bond donors: 0
Freely Rotating Bonds: 1
Polar Surface Area: 3.24 Å2
Index of Refraction: 1.544
Molar Refractivity: 45.39 cm3
Molar Volume: 143.6 cm3
Surface Tension: 33.9 dyne/cm
Density: 0.94 g/cm3
Flash Point: 84.2 °C
Enthalpy of Vaporization: 44.79 kJ/mol
Boiling Point: 211.6 °C at 760 mmHg
Vapour Pressure: 0.181 mmHg at 25°C
Melting Point: -25°C
Appearance: light yellow liquid
Stability: Stable. Combustible. Incompatible with strong oxidizing agents.
Uses
N,N,4-Trimethylaniline (CAS NO.99-97-8) is used for making the automatic coagulation held water.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 212mg/kg (212mg/kg) | Archivio Italiano di Scienze Farmacologiche. Vol. 1, Pg. 284, 1951. | |
| rat | LC50 | inhalation | 1400mg/m3/4H (1400mg/m3) | SENSE ORGANS AND SPECIAL SENSES: ULCERATED NASAL SEPTUM: OLFACTION LUNGS, THORAX, OR RESPIRATION: DYSPNEA LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION | National Technical Information Service. Vol. OTS0573706, |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Safety Information about N,N,4-Trimethylaniline (CAS NO.99-97-8):
Hazard Codes: 
T
Risk Statements: 23/24/25-33-52/53
R23/24/25: Toxic by inhalation, in contact with skin and if swallowed.
R33: Danger of cumulative effects.
R52/53: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 28-36/37-45-61
S28: After contact with skin, wash immediately with plenty of soap-suds.
S36/37: Wear suitable protective clothing and gloves.
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: 1708
WGK Germany: 3
F: 8-10-23
HazardClass: 6.1
Poison by intraperitoneal route. Mutation data reported. When heated to decomposition it emits toxic vapors of NOx.
Analytical Methods
For occupational chemical analysis use NIOSH: Amines, Aromatic, 2002.
Specification
General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media: In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Handling: Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing.
Storage: Store in a cool, dry place. Store in a tightly closed container.