79-03-8 Propionyl chloride
| CAS Number: 79-03-8 Basic Information | |
| Chinese name: | Propionyl chloride |
| English name: | Propionyl chloride |
| Alias: | Propionylchloride (6CI,8CI); Chloro ethyl ketone; NSC 83547; Propionic acid chloride; Propionoyl chloride |
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| Molecular formula: | C 3 H 5 ClO |
| Molecular weight: | 92.52 |
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CAS accession number :
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79-03-8
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| EINECS accession number: | 201-170-0 |
| InChI: | 1S/C3H5ClO/c1-2-3(4)5/h2H2,1H3 |
| physical and chemical properties | |
| Melting point: | -94ºC |
| Boiling point: | 77-79ºC |
| Water solubility: | react |
| Refractive Index: | 1.402-1.405 |
| Flash point: | 11ºC |
| density: | 1.06 |
| 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. |
| Security Information | |
| 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 |
| other information | |
| 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