Note: Ingredients listed on restricted chemical lists
EC/CAS
122-52-1
Name of the chemical
phosphorous acid, triethyl ester
Concentration
>= 90 - <= 100
General Information
Version
8.10
Revision date
2025-03-12
Product name
Triethylphosphite for synthesis
CAS No.
122-52-1
1.2.1 Relevant identified uses
Chemical for synthesisIntermediate for use under strictly con- trolled conditions
Emergency telephone
+65 6890 6633, +65 6890 6639, +65 3158 1349
Icons in SDS
Company Information
company name
Sigma-Aldrich Pte Ltd
e-mail address of the competent person responsible for the Safety Data Sheet
TechnicalService@merckgroup.com
GHS Information
Signal word
Warning
Hazard Codes
Hazard statements (CLP)
H226, H302, H317
Hazard statements
Code
Statements
H226
Flammable liquid and vapour
Section 2
SECTION 2: Hazards identification
2.1 Classification of the substance or mixture
Flammable liquids : Category 3 Acute toxicity (Oral) : Category 4 Skin sensitization : Sub-category 1B
Signal word
Warning
Hazard statements
H226 Flammable liquid and vapor. H302 Harmful if swallowed. H317 May cause an allergic skin reaction.
Prevention
P210 Keep away from heat/ sparks/ open flames/ hot surfaces. No smoking. P261 Avoid breathing mist or vapors. P264 Wash skin thoroughly after handling. P280 Wear protective gloves/ eye protection/ face pro- tection.
Response
P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower. P333 + P313 If skin irritation or rash occurs: Get medi- cal advice/ attention. P362 + P364 Take off contaminated clothing and wash it before reuse. P370 + P378 In case of fire: Use dry sand, dry chemi- cal or alcohol-resistant foam to extinguish.
Storage
P403 + P235 Store in a well-ventilated place. Keep cool.
Disposal
P501 Dispose of contents/ container to an approved waste disposal plant.
Other hazards which do not result in classification
None known.
