Benzil

1. Identification

Product Identifiers

Other Names

Diphenylethanedione, Dibenzoyl

Product Number(s)

C030

CAS Number

134-81-6

Recommended use of the chemical and restriction on use

Company Details

Emergency Contact Details

2. Hazards Identification

Classification of the substance or mixture

Label Elements

Signal Words

Warning

Hazard Statement(s)

• H315 Causes skin irritation.
• H319 Causes serious eye irritation.
• H335 May cause respiratory irritation.

Precautionary Statement(s)

• Prevention
• Wash face, hands and any exposed skin thoroughly after handling.
• Wear protective gloves/protective clothing/eye protection/face protection.
• Avoid breathing dust/fume/gas/mist/vapors/spray.
• Use only outdoors or in a well-ventilated area.

Primary route(s) of entry

Human Health

Inhalation

• IF INHALED: Remove person to fresh air and keep comfortable for breathing.
• Call a POISON CENTER or doctor if you feel unwell

Ingestion

Not available.

Eyes

IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. ContinuerinsingIf eye irritation persists: Get medical advice/attention.

Skin

• IF ON SKIN: Wash with plenty of soap and water
• If skin irritation occurs: Get medical advice/attention
• Take off contaminated clothing

Environment

Other Hazards

None identified

3. Composition / Information on Ingredients

4. First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Clean mouth with water and drink afterwards plenty of water. Get medical attention if symptoms occur.

Inhalation

If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.

Skin Contact

Wash off with soap and plenty of water. Consult a physician.

Eye Contact

Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.

Other Information

Consult a physician. Show this safety data sheet to the doctor in attendance.

5. Firefighting Measures

Suitable extinguishing equipment

Fire

Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

HAZCHEM

Not available.

Special protective equipment and precautions for fire fighters

6. Accidental Release Measures

Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust.

Environmental precautions

Do not let product enter drains.

Methods and materials for containment and clean up

Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers for disposal

7. Handling and Storage

Precautions for safe handling

Wear personal protective equipment/face protection. Ensure adequate ventilation. Avoid dust formation. Do not get in eyes, on skin, or on clothing. Avoid ingestion and inhalation.

Conditions for safe storage

Keep in a dry, cool and well-ventilated place. Keep container tightly closed. IncompatibleMaterials. Strong oxidizing agents.

8. Exposure Controls / Personal Protection

Exposure Standards

Engineering controls

Contains no substances with occupational exposure limit values.Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

Personal protective equipment

Eye and face protection

• Safety glasses with side-shields conforming to EN166 Use equipment for eye protection tested
• and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

• Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands.
• The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.
• Full contact
• Material: Nitrile rubber
• Minimum layer thickness: 0.11 mm Break through time: 480 min
• Material tested:Dermatril® (KCL 740 / Aldrich Z677272, Size M)
• Splash contact Material: Nitrile rubber
• Minimum layer thickness: 0.11 mm Break through time: 480 min
• Material tested:Dermatril® (KCL 740 / Aldrich Z677272, Size M)
• data source: KCL GmbH, D-36124 Eichenzell, phone ±49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374
• If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the CE approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.

Body protection

Impervious clothing, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.

Respiratory protection

For nuisance exposures use type P95 (US) or type P1 (EU EN 143) particle respirator.For higher level protection use type OV/AG/P99 (US) or type ABEK-P2 (EU EN 143) respirator cartridges. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).

9. Physical and Chemical Properties

General information

Appearance

Light yellow, dark yellow crystalline

Odour

Odorless

pH

Not available.

Vapour Pressure

Not available.

Density

Not available.

Boiling Point

346 - 348 °C / 654.8 - 658.4 °F

Melting Point

94 - 97 °C / 201.2 - 206.6 °F

Solubility

0.5 g/l @20°C

Specific Gravity of Density

Not available.

Flash Point

180 °C - closed cup

Flammable (Explosive) Limits

Not available.

Ignition Temperature

Not available.

Formula

C14H10O2

10. Stability and Reactivity

Reactivity

No further relevant information available.

Chemical stability

Stable under recommended storage conditions.

Possibility of hazardous reactions

No further relevant information available.

Conditions to avoid

No further relevant information available.

Incompatible materials

Strong oxidising agents

11. Toxicological Information

Acute effects

• LD50 Oral - mouse - > 3,000 mg/kg
• Remarks: Behavioral:Somnolence (general depressed activity).

Eye contact

• Serious eye damage/eye irritation
• Eyes - rabbit
• Result: Moderate eye irritation - 24 h

Skin contact

Skin corrosion/irritation

Ingestion

No further relevant information available.

Inhalation

May cause respiratory irritation.

Toxicity and irritation

No further relevant information available.

12. Ecological Information

Ecotoxicity

No further relevant information available.

Persistence and degradability

No further relevant information available.

Bioaccumulative potential

No further relevant information available.

Other adverse effects

No further relevant information available.

13. Disposal Considerations

General information

14. Transport Information

ADG label required

HAZCHEM

Not available.

UN Number

None.

Proper shipping name

Not regulated.

Transport hazard class

0

Packing group

None.

Environmental hazard

No information available.

Special precautions for users

No information available.

Additional information

No information available.

15. Regulatory Information

Poisons Schedule Number

No information available.

Other Information

No further information available.

16. Other Information

SDS preparation date

12 October 2026

Comments

This information is based on our present knowledge. However, this shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship.

References

• ThermoFisher Scientific SDS "Benzil". 18/12/2025
• https://www.fishersci.com/store/msds?partNumber=AC105411000&productDescription=BENZIL+100GR&vendorId=VN00032119&countryCode=US&language=en