Allyl Mercaptan (allyl thiol) — properties & hazards overview
Boiling point
~ 90–95 °C
Odour threshold
Extremely low (garlic/sulfur)
Water solubility
Low–moderate
LEL–UEL
Flammable range (indicative)
Toxicity
irritant / odour-driven
Flammability
high
Chronic risk
generally low
Environmental
odour nuisance
| Property | Value / Note |
|---|---|
| Reactivity | Thiol; readily oxidised to disulfides/sulfonates. Strong odourant at trace levels. |
| Absorption chemistry | Alkaline conditions improve capture; oxidation greatly increases overall removal. |
| Materials | FRP, PP, PE; compatible stainless with care. When using chlorinated oxidants, check corrosion and elastomers. |
| Typical uses | Flavour/fragrance chemistry, research intermediates. |
*Even trace emissions can trigger complaints — design for odour control, not just concentration limits.