| 摘要 |
<p>Insecticidal vaporizing compsns. are rendered non-inflammable by addition of trichlorotrifluoroethane. Prevents accidental ignition of unattended compsns. which vaporize in kitchens, shops, aircraft, etc. The product boils at 47.6 degrees C and is an excellent carrier for the insecticide vapour.</p> |
