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Freon is an odorless gas; it does not smell like anything. Freon is a popular refrigerant because it is non-toxic and non-flammable. Although it dates back to 1928, Freon and its related gases are still the safest refrig... More »

www.reference.com Science Chemistry Atoms & Molecules

Freon gases have a sweet odor similar to ether or freshly mowed grass. The odor becomes noticeable at concentrations of higher than 20 percent. At 11 percent concentration and higher, Freon gases are toxic, so the effect... More »

www.reference.com Science Chemistry

If a person's sweat smells like ammonia, then there is nothing to worry about because sweat naturally has ammonia in it, according to WebMD, and some people have enough ammonia in the sweat for it to actually smell. Duri... More »

www.reference.com Health Pain & Symptoms
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Freon gas is somewhat dangerous to handle and should only be handled by a professional. It often cuts off the path for oxygen into the lungs and cells of those who inhale it deeply. If a person is overexposed to it, he m... More »

www.reference.com Home & Garden Heating & Cooling

Some tips for adding Freon to a home air-conditioning include obtaining the right type of Freon, wearing protective gear, identifying the point of Freon leak and repairing it, adding small amounts of the refrigerant at a... More »

www.reference.com Home & Garden Heating & Cooling

Freon gas often cuts off the path for oxygen into the lungs and cells of those who inhale it deeply. While light breathing near an open freon container or limited exposure to the skin causes only mild harm, even this cas... More »

www.reference.com Science Chemistry Atoms & Molecules

Five indicators of a chemical change are color change, temperature change, precipitate formation, gas bubble formation and smell or taste change. Since some chemical products are poisonous, detecting a chemical reaction ... More »

www.reference.com Science Chemistry Atoms & Molecules