99.5% p-Toluidine

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Description

Additional Information

Category
o-Toluidine series
Describe
p-Toluidine is an organic compound with the chemical formula C?H?N. It is one of the three positional isomers of methylaniline and belongs to the aromatic amine class of chemicals.
Cas No.
106-49-0
Purity
99.5%
Synonym(s)
4-Methylaniline

Physical and chemical properties

1. Chemical Identity
- Chemical Name: p-Toluidine
- IUPAC Name: 4-Methylaniline
- Synonyms: 4-Aminotoluene, p-Aminotoluene, 1-Amino-4-methylbenzene
- CAS Number: 106-49-0
- EC Number: 203-403-1
- Molecular Formula: C7H9N
- Molecular Weight: 107.15 g/mol
2. Physical Properties
- Appearance: White to yellowish or brownish lustrous solid (leaflets or flakes). Darkens on exposure to air and light.
- Odor: Faint, aromatic, aniline-like odor.
- Melting Point: 43-45 °C (109-113 °F)
- Boiling Point: 200 °C (392 °F) at 1013 hPa
- Density: 1.046 g/cm³ at 20 °C
- Solubility:
- In Water: 7.5 g/L at 20 °C (Slightly soluble)
- In Organic Solvents: Soluble in ethanol, diethyl ether, acetone, and carbon tetrachloride. Soluble in dilute acids.
- Vapor Pressure: 0.15 hPa at 20 °C
- Vapor Density: 3.9 (Air = 1)
3. Chemical Properties and Stability
- Stability: Stable under recommended storage conditions. Discolors on exposure to air and light.
- Incompatibilities: Incompatible with strong oxidizing agents, acids, acid chlorides, acid anhydrides, and chloroformates. Reacts violently with nitric acid.
- Hazardous Decomposition Products: Combustion may produce toxic fumes of carbon monoxide (CO), carbon dioxide (CO2), and nitrogen oxides (NOx).
4. Other Key Data
- Flash Point: 87 °C (189 °F) - Closed cup
- Autoignition Temperature: 482 °C (900 °F)
- Refractive Index (n44/D): 1.553