When alcohol vapor makes contact with the orange dichromate-coated crystals, the color changes from orange to green.

In another such experiment, in 1820, he found that with the platinum, alcohol vapours were converted to acetic acid.

May I ask the witness how he accounts for the large quantity of alcohol vapor immediately after the explosion?

But admittedly there was some alcohol vapor released.

The electrochemical sensor is sensitive to alcohol vapors, and requires recalibration over time.

In the Intoxylizer, two electrodes are separated by a material that becomes a conductor in the presence of alcohol vapor.

The alcohol vapor is cooled and transferred into a large jar, and the lambanog is ready.

The very hot liquid is sipped one person at a time, thus alcohol vapors are inhaled in the process.

The amount of alcohol formed is relatively small but the conditions in the oven cause it to be lost as alcohol vapour.

They say their sensor is so sensitive it can even pick up alcohol vapors in the vicinity of a driver when car windows are open.