Tert-Butyl Chloride (TBC)

Clear, colorless, highly flammable liquid used in industrial and laboratory synthesis. Vapors can form explosive mixtures with air.

CAS No: 507-20-0

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Formula

(CH₃)₃CCl

Main Uses

Industrial and professional chemical synthesis

Appearance

Clear, colorless liquid

Handling

tightly closed in a fireproof area

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Safety Highlights

Highly flammable liquid and vapor (Category 2, H225). Vapors may travel and flash back to ignition sources. No classification for acute toxicity, skin/eye irritation, sensitization, mutagenicity, carcinogenicity, or specific target organ toxicity is indicated in the SDS.

Flammable Liquid

Highly flammable liquid and vapor (Category 2, H225); vapors may form explosive mixtures with air and can flash back to ignition sources.

Toxic on Contact

Not classified for acute toxicity, irritation, sensitization, mutagenicity, carcinogenicity, or reproductive effects based on provided SDS data.

Corrosive Agent

Not classified as corrosive.

Emergency Measures

Rinse cautiously with water for several minutes; remove contact lenses if easy to do; get medical attention.

Proper Storage

Store tightly closed in a fireproof, well-ventilated area away from heat, sparks, open flames, and hot surfaces. Follow grounding/bonding protocols to avoid static discharge.

Regulatory ID

Formula: (CH₃)₃CCl | Molar mass: ~92.58 g/mol | GHS Classification: Flammable Liquid Category 2 (H225).

Environmental Care

Avoid environmental release; not classified as a marine pollutant but may be classed as slight water hazard (WGK 1) in some jurisdictions.

PPE Required

Protective gloves, chemical safety goggles or safety glasses, suitable protective clothing, and respiratory protection if ventilation is inadequate.

Frequently Asked Questions

Summarizes TBC’s high flammability, storage precautions, PPE needs, spill cleanup methods, and environmental considerations in a quick-reference format.

Is tert-butyl chloride flammable?

Yes. It is a highly flammable liquid and vapor (H225). Vapors can form explosive mixtures with air and may flash back to ignition sources.

How should it be stored?

Store in a tightly closed container in a fireproof, well-ventilated area away from heat, sparks, and open flames. Follow grounding/bonding procedures to prevent static buildup.

What PPE is recommended when handling TBC?

Use protective gloves, chemical safety goggles or glasses, and suitable protective clothing. If ventilation is insufficient, respiratory protection is advised.

What should be done in case of a spill?

Eliminate ignition sources, ventilate the area, and collect the spill using non-sparking tools (sweep or shovel) into appropriate containers. Dispose of per local regulations.

Does tert-butyl chloride pose an environmental hazard?

Releases should be avoided. It is not classified as a major environmental toxin but has been assigned a slight water hazard classification (WGK 1) in some regions, so prevent discharge into waterways.

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