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1-Octanesulfonic acid

Also known as: 1-Octanesulfonic acid · 3944-72-7 · Octanesulphonic acid · DU4821I15A

CAS No.
3944-72-7
Formula
C8H18O3S
Molar mass
194.29 g/mol
PubChem CID
49939
GHS pictograms
GHS pictogram: CorrosiveCorrosive
GHS pictogram: Harmful / IrritantHarmful / Irritant
2D structure of 1-Octanesulfonic acid
2D structure · PubChem CID 49939

Summary

1-Octanesulfonic acid (C8H18O3S), CAS 3944-72-7. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.

Background

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Physical properties

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Hazards

GHS pictogram: Corrosive
Corrosive (GHS05)

Attacks skin, eyes and materials.

GHS pictogram: Harmful / Irritant
Harmful / Irritant (GHS07)

May cause skin, eye or respiratory irritation.

Hazard statements

Storage

Temperature

Keep at room temperature, below 30 °C, out of direct heat.

Ventilation

Store somewhere well-ventilated and away from any ignition source.

Containers

Metal drums or tinted glass, tightly sealed.

Keep away from

Strong acids, strong bases and powerful oxidizers.

Personal protective equipment

Gloves

Nitrile or butyl, at least 0.4 mm thick.

Eye protection

Safety goggles with side shields.

Respirator

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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Practical safety notes

  • 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 1-Octanesulfonic acid flammable?+

1-Octanesulfonic acid (CAS 3944-72-7) does not carry the GHS02 flame pictogram in our records. Always confirm with the manufacturer's SDS section 9 (flash point) before assuming a product is non-flammable.

What PPE should I wear when handling 1-Octanesulfonic acid?+

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 1-Octanesulfonic acid be stored?+

Store 1-Octanesulfonic acid (CAS 3944-72-7) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials. Segregate acids from bases and keep away from metals that can be attacked.

Is 1-Octanesulfonic acid dangerous for the environment?+

No specific environmental pictogram (GHS09) is listed in our records for 1-Octanesulfonic acid, 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 1-Octanesulfonic acid?+

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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