| 摘要 |
A composition is provided, including: at least one chlorinated olefin having at least 3 carbon atoms and at least two terminal chlorine atoms; and at least one C1-C7 aliphatic aldehyde hydrazone and/or at least one C1-C14 aliphatic ketohydrazone. A method of inhibiting formation of phosgene and/or acidic impurity from a chlorinated olefin having at least 3 carbon atoms and at least two terminal chlorine atoms, comprising: adding at least one C1-C7 aliphatic aldehyde hydrazone and/or at least one C1-C14 aliphatic ketohydrazone to a chlorinated olefin having at least 3 carbon atoms and at least two terminal chlorine atoms also is provided. |
