Isoamyl nitrite is a clear liquid of specific gravity 0.872, boiling at about 95 to 96 degrees Celsius. It has a solubility in water of about .01 g/100 mL, but dissolves readily in alcohol, ether, glacial acetic acid, chloroform, and benzene. It is prepared by passing nitrous fumes (from starch and concentrated nitric acid) into warm isoamyl alcohol, or by distilling a mixture of 26 parts of potassium nitrite in 15 parts of water with 30 parts of isoamyl alcohol in 30 parts of sulfuric acid. On heating with methanol, it is converted into isoamyl alcohol and methyl nitrite; a similar reaction takes place with ethanol, but the change is less complete. It is readily decomposed by nascent hydrogen, with the formation of ammonia and isoamyl alcohol; and in alkaline hydrolysis it forms isoamyl alcohol. n-amyl nitrite is a yellow-coloured liquid of specific gravity 0.853, boiling at 104 degrees Celsius. It decomposes in water. When the liquid is dropped onto fused caustic potash (liquid KOH), it forms potassium valerate.

The Risks: Side effects of sniffing room oderisers (especially repeated sniffing) may include headaches, nausea, coughing, dizziness, and in serious instances may completely pass out. Regular use can cause skin problems around the mouth and nose. If spilt,  Nitrites will burn the skin Alkyl nitrites reduce blood pressure. Making it dangerous for people with anaemia, glaucoma, breathing or heart problems.

Nitrites can be fatal if swallowed or mixing with Viagra can cause heart problems, coma, brain damage and possibly even death