Diethyl phosphite

Avocado Research Chemicals Ltd

Revision date : 2026-07-23

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GHS07 GHS05
Health risk rating 4
Safety risk rating 1
Environmental risk rating 1

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

GHS05 GHS07 M004 M009 M010 M011 M017

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

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