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 C₇H₉N. 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

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