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.
Acetal
Also known as: Acetal · 1,1-DIETHOXYETHANE · 105-57-7 · Acetaldehyde diethyl acetal
- CAS No.
- 105-57-7
- Formula
- C6H14O2
- Molar mass
- 118.17 g/mol
- PubChem CID
- 7765
Flammable
Corrosive
Harmful / Irritant
Summary
Acetal (C6H14O2), CAS 105-57-7. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.
Background
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Hazards
Ignites easily when exposed to a flame or spark.
Attacks skin, eyes and materials.
May cause skin, eye or respiratory irritation.
Hazard statements
- H225: Highly Flammable liquid and vapor [Danger Flammable liquids]
- H315: Causes skin irritation [Warning Skin corrosion/irritation]
- H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
- H320: Causes eye irritation [Warning Serious eye damage/eye irritation]
- H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure
- H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure
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)
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EU harmonised classification (ECHA C&L)
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Transport
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FDA recalls & enforcement
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Compatibilities
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Open comparator with AcetalPractical safety notes
- Flammable. Keep away from open flames, hot surfaces and sparks. Ground containers when transferring.
- Corrosive. Wear chemical goggles, faceshield and chemical-resistant gloves. Have an eyewash within reach.
- Irritant / harmful. Ventilate the workspace and avoid skin contact.
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 Acetal flammable?+
Yes. Acetal (CAS 105-57-7) 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 Acetal?+
Chemical-splash goggles and a faceshield, chemical-resistant gloves (nitrile or butyl) and an apron are the minimum. Ventilation should be sufficient to keep vapours below the occupational exposure limit. Check SDS section 8 for material-specific breakthrough times.
How should Acetal be stored?+
Store Acetal (CAS 105-57-7) 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. Segregate acids from bases and keep away from metals that can be attacked.
Is Acetal dangerous for the environment?+
No specific environmental pictogram (GHS09) is listed in our records for Acetal, 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 Acetal?+
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.
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