Note: Ingredients listed on restricted chemical lists
EC/CAS
75-56-9
Name of the chemical
Methyloxirane (Propylene oxide)
Concentration
N/A
EC/CAS
200-879-2
Name of the chemical
1,2-Propylenoxid (2016/1179)
Concentration
<= 100
General Information
Version
1.2
Revision date
2025-07-31
Product name
PROPYLENE OXIDE
Product Synonyms
1,2-Epoxypropane; Methyl Oxirane; PO
Chemical name
Methyloxirane
CAS No.
75-56-9
Emergency telephone
800-424-9300
Icons in SDS
Company Information
company name
Polymer production; Use as intermediate
e-mail address of the competent person responsible for the Safety Data Sheet
product.safety@lyb.com
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H224, H302+H312, H319, H331, H335, H340, H350, H402
Hazard statements
Code
Statements
H224
Extremely flammable liquid and vapour
Section 2
SECTION 2: Hazards identification
Other hazards
None known
Signal word
Danger
Hazard statements
H224 Extremely flammable liquid and vapour. H302 + H312 Harmful if swallowed or in contact with skin. H319 Causes serious eye irritation. H331 Toxic if inhaled. H335 May cause respiratory irritation. H340 May cause genetic defects. H350 May cause cancer. H402 Harmful to aquatic life.
Prevention
P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof electrical/ ventilating/ lighting equip- ment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P261 Avoid breathing mist or vapours. P264 Wash skin thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.
Response
P301 + P312 + P330 IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. Rinse mouth. P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower. P304 + P340 + P311 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/ doctor. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P308 + P313 IF exposed or concerned: Get medical advice/ attention. P337 + P313 If eye irritation persists: Get medical advice/ atten- tion. P362 + P364 Take off contaminated clothing and wash it before reuse. P370 + P378 In case of fire: Use dry sand, dry chemical or alco- hol-resistant foam to extinguish.
Storage
P403 + P233 Store in a well-ventilated place. Keep container tightly closed. P403 + P235 Store in a well-ventilated place. Keep cool. P405 Store locked up.
Disposal
P501 Dispose of contents/ container to an approved waste dis- posal plant.
2.1 Classification of the substance or mixture
1910.1200) Flammable liquids : Category 1 Acute toxicity (Oral) : Category 4 Acute toxicity (Inhalation) : Category 3 Acute toxicity (Dermal) : Category 4 Eye irritation : Category 2A Germ cell mutagenicity : Category 1B Carcinogenicity : Category 1B Specific target organ toxicity : Category 3 (Respiratory system) - single exposure Short-term (acute) aquatic : Category 3 hazard Other hazards