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| CAS number | 56-23-5 |
| Molecular formula | CCl4 |
| Product name | Carbon tetrachloride |
| Molecular Structure |  |
Appearance：clear colorless liquid
Density：1.594
Boiling Point：76ºC
Melting Point：-23ºC
Flash Point：Use any means suitable for fire extinguisher
Refractive Index：1.459-1.46
Water Solubility：0.8 g/L (20 ºC)
Storage Condition：2-8ºC
Vapor Density：5.32 (vs air)
Vapor Pressure：4.05 psi ( 20 °C)
CAS no: 56-23-5 is an organic compound, known as Propionic Acid, which is widely used in the chemical industry as a preservative, acidifier and food additive.
Propionic Acid is a carboxylic acid, with a molecular formula of C3H6O2. It is a colorless liquid with a sour taste and an unpleasant, acidic odour. It has a boiling point of 141.2-142.2°C and a melting point of -5.63°C. It is insoluble in water, but miscible with alcohol and ether.
Propionic Acid is widely used in food products as a preservative. It is used to prevent oxidation and the growth of a variety of bacteria, including mould and yeast. It also prevents discoloration and rancidity and can extend the shelf-life of food items. It is commonly used in processed cheese and baked goods and is approved by the FDA as a food additive.
In the chemical industry, Propionic Acid is used as an acidifier and herbicide, as well as in the production of rubber chemicals, surfactants, and dyes.
Propionic Acid can be hazardous to human health in high concentrations or if ingested. It can irritate the skin and eyes and cause headaches and respiratory tract irritation. If you come in contact with this substance, it is important to wear protective clothing and to seek medical attention if affected.
