Product Details
N-Methylaniline CAS#n-methylaniline.html">100-61-8
N-Methylaniline appears as a yellow to light brown oily fluid with a faint ammonia-like scent. It will gradually turn reddish-brown when exposed to air over time. The odor detection threshold is 1.7 ppm. Key properties: molecular weight 107.17, specific gravity 0.99 relative to water, boiling point 195.6°C, melting point -57.2°C, vapor pressure 0.3 mmHg at 20°C, flash point 79.4°C. NFPA-704 hazard rating: health 2, flammaleic-anhydride.html">mability 2, reactivity 0. It is nearly insoluble in water.
N-Methylaniline Chemical Properties
| Item | Value |
| Melting point | -57 °C (lit.) |
| Boiling point | 196 °C (lit.) |
| density | 0.989 g/mL at 25 °C (lit.) |
| vapor pressure | 0.5 hPa (20 °C) |
| refractive index | n20/D 1.571(lit.) |
| Fp | 174 °F |
| storage temp. | Store below +30°C. |
| solubility | water: slightly soluble 30g/L |
| form | Liquid |
| pka | 4.84(at 25℃) |
| color | Clear yellow to brown |
| Odor | Moderate aniline-type. |
| PH | 7.6 (1g/l, H2O, 20℃) |
| Water Solubility | 30 g/L |
| Sensitive | Air Sensitive |
| Merck | 14,6019 |
| BRN | 741982 |
| Henry's Law Constant | (x 10-5 atm·m3/mol): 1.19 at 25 °C (approximate - calculated from water solubility and vapor pressure) |
| Dielectric constant | 6.0（22℃） |
| Exposure limits | NIOSH REL: TWA 0.5 ppm (2 mg/m3), IDLH 100 ppm; OSHA PEL: TWA 2 ppm (9 mg/m3); ACGIH TLV: TWA 0.5 ppm (adopted). |
| Stability: | Incompatible with strong oxidizing agents. Discolours upon exposure to air. |
| InChI | 1S/C7H9N/c1-8-7-5-3-2-4-6-7/h2-6,8H,1H3 |
| InChIKey | AFBPFSWMIHJQDM-UHFFFAOYSA-N |
| SMILES | CNc1ccccc1 |
| LogP | 1.66 at 20℃ |
| CAS DataBase Reference | 100-61-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Aniline, N-methyl-(100-61-8) |
| EPA Substance Registry System | N-Methylaniline (100-61-8) |
Safety Information
| Item | Value |
| Hazard Codes | T,N |
| Risk Statements | 23/24/25-33-50/53 |
| Safety Statements | 28-36/37-45-60-61-28A |
| RIDADR | UN 2294 6.1/PG 3 |
| OEB | B |
| OEL | TWA: 0.5 ppm (2 mg/m3) [skin] |
| WGK Germany | 3 |
| RTECS | BY4550000 |
| F | 8 |
| Autoignition Temperature | 500 °C |
| TSCA | TSCA listed |
| HazardClass | 6.1 |
| PackingGroup | III |
| HS Code | 29214200 |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| Hazard Classifications | Acute Tox. 3 Dermal; Acute Tox. 3 Inhalation; Acute Tox. 3 Oral; Aquatic Acute 1; Aquatic Chronic 1; Eye Irrit. 2; STOT RE 2 Oral |
| Hazardous Substances Data | 100-61-8(Hazardous Substances Data) |
| Toxicity | LD in rabbits (g/kg): 0.28 orally; in rabbits, cats (mg/kg): 24, 24 i.v. (Treon) |
| IDLA | 100 ppm |
Product Application Of N-Methylaniline CAS#100-61-8
N-Methylaniline (NMA) serves as a key material in manufacturing self-assembled poly(N-methylaniline)-lignosulfonate (PNMA-LS) composite microspheres capable of adsorbing silver ions. It is also widely employed in the electrodeposition of poly(N-methylaniline) (PNMA) coatings onto steel disc electrodes via potentiodynamic, potentiostatic, and galvanostatic electrochemical methods.
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