Educational content for trained professionals. Not a Safety Data Sheet, not medical advice. In an emergency, call your local poison control or emergency services immediately. Terms of use.
Triethyl phosphite
Also known as: TRIETHYL PHOSPHITE · 122-52-1 · Triethoxyphosphine · Phosphorous acid, triethyl ester
- CAS No.
- 122-52-1
- Formula
- C6H15O3P
- Molar mass
- 166.16 g/mol
- PubChem CID
- 31215
Flammable
Harmful / Irritant
Health hazard
Summary
Triethyl phosphite (C6H15O3P), CAS 122-52-1. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.
Background
Loading background from Wikipedia…
Physical properties
No experimental physical properties indexed yet. Try PubChem for the raw record.
Hazards
Ignites easily when exposed to a flame or spark.
May cause skin, eye or respiratory irritation.
Serious long-term health effects (CMR, respiratory sensitizer).
Hazard statements
- H226: Flammable liquid and vapor [Warning Flammable liquids]
- H302: Harmful if swallowed [Warning Acute toxicity, oral]
- H315
- H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
- H319
- H332
- H335
- H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
- H320: Causes eye irritation [Warning Serious eye damage/eye irritation]
- H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
- H371: May cause damage to organs [Warning Specific target organ toxicity, single exposure]
- H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]
Storage
Keep at room temperature, below 30 °C, out of direct heat.
Store somewhere well-ventilated and away from any ignition source.
Metal drums or tinted glass, tightly sealed.
Strong acids, strong bases and powerful oxidizers.
Personal protective equipment
Nitrile or butyl, at least 0.4 mm thick.
Safety goggles with side shields.
A2 organic-vapor cartridge if the room isn't well ventilated.
Occupational exposure limits (HSE)
Loading NIOSH / OSHA exposure limits…
EU harmonised classification (ECHA C&L)
Loading ECHA C&L (CLP Annex VI)…
Transport
Loading transport data from PubChem…
FDA recalls & enforcement
Searching OpenFDA enforcement reports…
Compatibilities
Try the compatibility checker in Free tools.
Compare
Put this chemical against another one.
Open comparator with Triethyl phosphitePractical safety notes
- Flammable. Keep away from open flames, hot surfaces and sparks. Ground containers when transferring.
- Irritant / harmful. Ventilate the workspace and avoid skin contact.
- Serious health hazard (carcinogen, mutagen, reprotoxic, respiratory sensitizer). Substitute if possible; otherwise closed systems and medical surveillance.
Derived from the GHS classification shown above. These notes are generic guidance and do not replace the manufacturer's SDS or your local risk assessment.
FAQ
Is Triethyl phosphite flammable?+
Yes. Triethyl phosphite (CAS 122-52-1) carries the GHS02 flame pictogram. Keep it away from ignition sources, use non-sparking tools, and ground metal containers when transferring liquid.
What PPE should I wear when handling Triethyl phosphite?+
Safety glasses with side shields and nitrile gloves are the baseline. Work inside a fume hood or use a suitable respirator. Check SDS section 8 for material-specific breakthrough times.
How should Triethyl phosphite be stored?+
Store Triethyl phosphite (CAS 122-52-1) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials. Use a flammable-liquid cabinet and keep away from oxidizers and heat.
Is Triethyl phosphite dangerous for the environment?+
No specific environmental pictogram (GHS09) is listed in our records for Triethyl phosphite, but any chemical waste should be handled through your site's hazardous-waste procedure, not poured down the drain.
Where can I find the official Safety Data Sheet for Triethyl phosphite?+
Official, up-to-date SDS documents are published by each manufacturer (Sigma-Aldrich, Merck, Thermo Fisher, VWR, Carl Roth, etc.) and by regulators such as ECHA and NIOSH. This page is an educational summary and does not replace the manufacturer's SDS.
Ask about this product
AI-generated content may be inaccurate or outdated. Do not rely on it for emergency response, medical treatment, or regulatory compliance decisions. Terms of use.
Try one of these, or ask anything about this compound.
AI answers can be wrong. Always check the official SDS for definitive safety information.
Reference information only. Not a Safety Data Sheet. Always consult the manufacturer's official SDS and your local regulations before handling, storing or transporting any chemical. Terms of use.