Superiority:
Melting point: 213-215 ° C (lit.)
Density: 1.340
Storage conditions: 2-8 ° C
Merck: 14658 1
BRN: 2211962
Stability: Stable. Combustible. Incompatible with strong oxidizing agents.
CAS databases: 104-04-1 (CAS DataBase Reference)
Safety information
Dangerous mark: Xi
Dangerous category code: 36/37/38
Safety instructions: 26-36
WGK Germany: 3
RTECS number: AE5075000
Chemical properties
White crystal ribbed. Melting point (207 ℃), 215-216, the boiling point of 100 ℃ (1.06 x 10-3 kpa). Soluble in hot water, alcohol, ether, soluble in potassium hydroxide solution into orange, almost insoluble in cold water.
use
Used as a medicine and dye intermediates.
Production methods
By acetyl aniline via nitrification. Adding 98% of the 675 kg sulfate nitrifying pot, stir, and 20 to 25 ℃, 2-2.5 h add 99% of acetanilide 225 kg. After being dissolve, cooled to 7 ℃, within 4-7 ℃ about 20 h and mixed acid (by 63 kg of water, 60 kg98 kg96 % % sulphuric acid and 107 with the nitrate). Add finished, dilution in 4000 l of ice water, let stand for 1 h. Siphon to separate the upper waste acid, will lower material filtration, washed with water to neutral, a quick 4 - nitro acetanilide. Another method is to use of nitroaniline by acetylation.
Details:
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