79-03-8 Propionyl chloride
|CAS Number: 79-03-8 Basic Information|
|Chinese name:||Propionyl chloride|
|English name:||Propionyl chloride|
Chloro ethyl ketone;
Propionic acid chloride;
|Molecular formula:||C 3 H 5 ClO|
CAS accession number :
|EINECS accession number:||201-170-0|
|physical and chemical properties|
|Property description:||Colorless liquid with pungent odor. Freezing point -94°C, boiling point 80°C, melting point: -94-79°C, relative density 1.065 (20/4°C), refractive index 1.4032, flash point 12°C. Soluble in alcohol . Decomposes in water.|
|Safety Instructions :||S9: Keep the container in a well-ventilated place.
S16: Keep away from fire sources.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical attention.
S45: If you have an accident or feel unwell, seek help from your doctor immediately (preferably bring the product container label).
|Hazard category code :||R11: Very flammable.
R14: Reacts violently in contact with water.
R34: Can cause burns.
|Dangerous Goods Shipping Number:||UN1815|
|Applications:||Intermediates for the manufacture of pesticides, but also raw materials for organic synthesis.|
|Production method and others:||Propionyl chloride can be prepared by reacting propionic acid with phosphorus trichloride , phosphorus pentachloride, thionyl chloride or phosgene. 1. Put propionic acid and phosphorus trichloride into the reaction pot, add several magnetic sheets, and react at 50°C for 6 hours under reflux. After standing for 1-2h, the lower layer of phosphorous acid was removed to obtain propionyl chloride. Under the condition of propionic acid:PCl3 of 1.32:1, the yield is 95. When the obtained crude product needs to be purified, the method of distillation can be used to collect the fractions around 80°C to obtain the finished product. Raw material consumption quota: propionic acid (99.5) 990kg/t; phosphorus trichloride (98) 690kg/t. 2. The benzoyl chloride method is derived from the action of propionic acid and benzoyl Quality standard: Analysis content Quality standard Analysis result Appearance colorless and transparent liquid Colorless and transparent liquid content≥99.099.32 Boiling range (78～81℃)≥9093.7|
Post time: Jun-15-2022