General Information
Version
6
Revision date
2026-07-23
Product name
Diethyl phosphite
Product Synonyms
Diethyl hydrogen phosphonate
CAS No.
762-04-9
supplier name
Avocado Research Chemicals Ltd
Emergency telephone
001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887
Icons in SDS
Company Information
company name
Avocado Research Chemicals Ltd
e-mail address of the competent person responsible for the Safety Data Sheet
begel.sdsdesk@thermofisher.com
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H227, H303, H313, H317, H318
Hazard statements
Code
Statements
H227
Combustible liquid
Section 2
SECTION 2: Hazards identification
Physical State
Appearance/Odor
Liquid Colorless Strong Emergency Overview Combustible liquid. May be harmful if swallowed. May be harmful in contact with skin. May cause an allergic skin reaction. Causes serious eye damage. Moisture sensitive Classification of the substance or mixture Flammable liquids Category 4 Acute Oral Toxicity Category 5 Acute Dermal Toxicity Category 5 Serious Eye Damage/Eye Irritation Category 1 Skin Sensitization Category 1 Label Elements
Signal word
Danger Hazard Statements H227 - Combustible liquid H303 - May be harmful if swallowed H313 - May be harmful in contact with skin H317 - May cause an allergic skin reaction H318 - Causes serious eye damage
Prevention
P210 - Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking P261 - Avoid breathing dust/fume/gas/mist/vapors/spray P270 - Do not eat, drink or smoke when using this product P272 - Contaminated work clothing should not be allowed out of the workplace P280 - Wear protective gloves/protective clothing/eye protection/face protection
Response
P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing P302 + P352 - IF ON SKIN: Wash with plenty of soap and water P310 - Immediately call a POISON CENTER or doctor P370 + P378 - In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish P362 + P364 - Take off contaminated clothing and wash it before reuse
Storage
P403 + P235 - Store in a well-ventilated place. Keep cool
Disposal
P501 - Dispose of contents/ container to an approved waste disposal plant
Other physicochemical hazards
Combustible material.
Health hazards
May be harmful if swallowed. May be harmful in contact with skin. May cause an allergic skin reaction.
Environmental hazards
Contains no substances known to be hazardous to the environment or not degradable in waste water treatment plants. Will likely be mobile in the environment due to its volatility. The product contains volatile organic compounds (VOC) which will evaporate easily from all surfaces. This product does not contain any known or suspected endocrine disruptors.
2.1 Classification of the substance or mixture
Classification of the substance or mixture Flammable liquids. Category 4 Acute Oral Toxicity Category 5 Acute Dermal Toxicity Category 5 Serious Eye Damage/Eye Irritation Category 1 Skin Sensitization