Product Description
N,N-Dimethylaniline (CAS# 121-69-7) is an organic compound presented as a yellow oily liquid with a typical amine-like odour. It has a density of approximately 0.96 g/cm³, a boiling point of 193.5±0.0 °C at 760 mmHg, and a melting point ranging from 1.5–2.5 °C (literature value). This compound features a molecular formula of C₈H₁₁N and a molecular weight of 121.180.
It possesses weakly basic properties and is soluble in common organic solvents including ethanol, chloroform, ether and benzene, while being insoluble in water. The product records a flash point of 62.8±0.0 °C, a vapor pressure of 0.5±0.3 mmHg at 25 °C, and a refractive index of approximately 1.56.
Widely adopted as a crucial chemical intermediate, N,N-Dimethylaniline is extensively utilized in the synthesis of dyes, pharmaceuticals and various chemical products. Additionally, it acts as a catalyst for polyurethane foam production and serves as a curing agent in the rubber industry.
Properties
| Hazard Codes | T,N |
| Risk Statements | 61-20/21-51/53-40-23/24/25 |
| Safety Statements | 53-45-61-36/37-28A-28 |
| OEB | A |
| OEL | TWA: 5 ppm (25 mg/m3), STEL: 10 ppm (50 mg/m3) [skin] |
| RIDADR | UN 2253 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | BX4725000 |
| F | 8 |
| Autoignition Temperature | 370 °C DIN 51794 |
| TSCA | Yes |
| HS Code | 2921 42 00 |
| HazardClass | 6.1 |
| PackingGroup | II |
| Hazardous Substances Data | 121-69-7(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 1.41 ml/kg (Smyth) |
| IDLA | 100 ppm |
Safety Instructions
It should be noted that this compound is highly toxic and may cause poisoning via inhalation and skin absorption. It exerts toxic effects on the human blood system and nervous system, and poses potential carcinogenic hazards similar to aniline. For safety purposes, direct skin contact must be avoided. Handling operations must be performed under adequate ventilation and enclosed system conditions, while operators shall wear suitable personal protective equipment at all times.
In case of spillage or leakage, emergency personnel must wear self-contained breathing apparatus and chemical-resistant protective clothing. Leaked materials should be properly contained and disposed of in compliance with local environmental and safety regulations. Large-scale spills shall be collected for recovery or subjected to professional treatment prior to final disposal.
For safe storage, N,N-Dimethylaniline shall be stored in a cool, dry place, away from heat sources and direct sunlight, with minimal exposure to ambient air. Standard operating procedures must be strictly followed to prevent potential health hazards and environmental risks.
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