Anhydrous ammonia is a colorless non-flammable liquefied gas. Its vapor is lighter than air [(vapor density of 0.6) air = 1] and has the same pungent odor as household ammonia. Although ammonia vapor is lighter than air, the vapors from a leak may hug the ground appearing as a white cloud.
The most-ticketed car on the road, the Mercedes-Benz SL-Class, is a two-door luxury convertibleâsuggested retail price for a SL550 Roadster is $102,600. Drivers of these cars are four times more likely to get a ticket than the average person.
It has been postulated that red, being an especially eye-catching color, unduly attracts the attention of the highway patrol, therefore even when every car on the road is whipping past at 20 mph over the speed limit, it's the rubicund chariots that suddenly discover flashing lights in their rearview mirrors.