Hazard search

Trimethyl phosphite

CAS number
121-45-9
Also known as
Methyl phosphite · Phophorous acid, trimethyl ester · Trimethoxy phosphine

UK workplace exposure limits

LimitValueApplies to
8-hour TWA 2 ppm
8-hour TWA 10 mg/m³

Sampling methods

Our data hold no sampling method for this substance.

Methods and limits as published by their agencies and summarised by SKC; check the current method and the limit that applies to you before sampling.

Source: SKC Ltd (UK), Hazard Search, used with SKC's permission (opens in a new tab)