Ammonia
암모니아 · Ammoniak · Amoniak · Amoníaco · Amoniac · Амонијак · Аміак · Ammonyak · Амоняк · Amonia · Аммиак · Аммиак
| CAS | 7664-41-7 |
|---|---|
| EC | 231-635-3 |
| UN | 1005 |
| Formula | NH3 |
| Molar mass | 17.031 g/mol |
| LEL | 15.0 % vol |
| UEL | 33.6 % vol |
| Autoignition temperature | 630 °C |
| Temperature class | T1 |
| Gas group | IIA |
| Relative density of the gas or vapour (air = 1) | 0.588 |
| GHS | Danger · H221, H314, H331, H400 |
Ammonia is an azane that consists of a single nitrogen atom covelently bonded to three hydrogen atoms. It has a role as a NMR chemical shift reference compound, a metabolite, a neurotoxin, a nucleophilic reagent, a mouse metabolite, an EC 3.5.1.4 (amidase) inhibitor and a refrigerant. Ammonia solutions (containing more than 35% but not more than 50% ammonia) appears as a clear colorless liquid consisting of ammonia dissolved in water. Corrosive to tissue and metals. Although ammonia is lighter than air, the vapors from a leak will initially hug the ground.