‌3-Methylaniline is in the form of a colorless oily liquid. The following is a detailed summary of the forms of 3-methylaniline:

‌Physical form‌: 3-methylaniline exhibits the characteristics of a colorless oily liquid, and sometimes a viscous liquid. When exposed to light or air, it will be oxidized and gradually turn brown. ‌Chemical properties‌: This substance is flammable and toxic, and may be dangerous when exposed to open flames and high heat. At the same time, it is a strong methemoglobin former and can irritate the bladder and urethra, which may cause hematuria. ‌Uses‌: 3-Methylaniline is mainly used as an intermediate for the manufacture of reducing dyes, providing the necessary chemical basis for the dye industry. ‌In summary, 3-methylaniline is a colorless oily liquid at room temperature and pressure, with specific chemical properties and industrial uses. When handling and storing, appropriate safety measures need to be taken to prevent it from causing harm to humans and the environment. ‌

3-Methylaniline, also known as m-toluidine, is an important organic compound with a wide range of uses. The following are the main uses of 3-methylaniline:

Dye intermediates: 3-methylaniline is an important intermediate for the manufacture of vat dyes, such as Reactive Yellow X-R, Cationic Violet 2RL, etc. At the same time, it is also used as an intermediate for color film developers and a raw material for azo dyes.
Solvents and additives: This substance can be used as a solvent for polyester resins and an additive for polyaminocresol ethyl foam.
Analytical reagents: 3-methylaniline can also be used as an analytical reagent for the determination of osmium, palladium, platinum, ruthenium and nitrite, etc.
Other uses: In specific fields, 3-methylaniline is also used to prepare conductive polymer-based electrochromic films and hydrolysis-resistant polycarbonate composites, etc.
In summary, 3-methylaniline has a wide range of application value in the fields of dyes, solvents, additives and analytical reagents.

m-Toluidine Chemical Properties
Melting point -30 °C
Boiling point 203-204 °C(lit.)
density 0.999 g/mL at 25 °C(lit.)
vapor pressure 0.3 hPa (20 °C)
refractive index n20/D 1.567(lit.)
Fp 186 °F
storage temp. Store below +30°C.
solubility 0.2 g/100 mL (20°C)
pka 4.73(at 25℃)
form Crystalline Solid or Liquid
color White
Odor aromatic aniline-like odor
PH 7 (H2O, 20℃)
Water Solubility 0.2 g/100 mL (20 ºC)
Merck 14,9536
BRN 635944
Exposure limits TLV-TWA skin 2-ppm (～9 mg/m3) (ACGIH).
Dielectric constant 5.9500000000000002
InChIKey JJYPMNFTHPTTDI-UHFFFAOYSA-N
LogP 1.4 at 25℃
CAS DataBase Reference 108-44-1(CAS DataBase Reference)

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