2,4-DICHLOROBENZOYL PEROXIDE, 50% in polydimethylsiloxane

GELEST, INC

Revision date : 2026-02-09

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GHS02 GHS07
Health risk rating 2
Safety risk rating 4
Environmental risk rating 1

Note: Ingredients listed on restricted chemical lists

EC/CAS

63148-62-9

Name of the chemical

polydimethylsiloxane (Mw > 6 800 Da)

Concentration

48 - 50

General Information

Version

2.2

Revision date

2026-02-09

Product name

2,4-DICHLOROBENZOYL PEROXIDE, 50% in polydimethylsiloxane

Product Synonyms

PEROXIDE CURING AGENT; 2,4,2",4"-TETRACHLOROBENZOYL PEROXIDE; BIS(2,4- PEROXIDE CURING AGENT; 2,4,2",4"-TETRACHLOROBENZOYL PEROXIDE; BIS(2,4-DICHLOROBENZOYL) PEROXIDE

Chemical name

PEROXIDE

supplier name

GELEST, INC

Emergency telephone

1-800-424-9300, +1 703-527-3887

Icons in SDS

GHS02 GHS07 M004 M009 M010 M011 M017 T028

Company Information

company name

GELEST, INC

e-mail address of the competent person responsible for the Safety Data Sheet

CS-Gelest@m-chem.com

GHS Information

Signal word

Danger

Hazard Codes

Hazard statements (CLP)

H242, H315, H319, H335

Hazard statements

Code

Statements

H242

Heating may cause a fire

Section 2

SECTION 2: Hazards identification

Classification of the substance or mixture GHS US classification Organic peroxide, Type D H242 Heating may cause a fire. Skin corrosion/irritation, Category 2 H315 Causes skin irritation. Serious eye damage/eye irritation, Category 2A H319 Causes serious eye irritation. Specific target organ toxicity – Single exposure, H335 May cause respiratory irritation. Category 3, Respiratory tract irritation Full text of H statements : see section 16

2.2 Label elements

GHS US labeling

Signal word

Danger

Hazard statements

H242 - Heating may cause a fire H315 - Causes skin irritation H319 - Causes serious eye irritation H335 - May cause respiratory irritation

Precautionary statements

P210 - Keep away from heat, open flames, sparks. - No smoking. P220 - Keep/Store away from flammable or combustible materials, oxidizer P234 - Keep only in original packaging. P261 - Avoid breathing mist, dust. P264 - Wash hands thoroughly after handling. P271 - Use only outdoors or in a well-ventilated area. P280 - Wear protective gloves, protective clothing, eye protection, face protection, and hearing protection. P302+P352 - If on skin: Wash with plenty of soap and water. P304+P340 - If inhaled: Remove person to fresh air and keep comfortable for breathing. P305+P351+P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P312 - Call a doctor if you feel unwell. P321 - Specific treatment (see first aid instructions on this label). P332+P313 - If skin irritation occurs: Get medical advice or attention. P337+P313 - If eye irritation persists: Get medical advice or attention. P362+P364 - Take off contaminated clothing and wash it before reuse. P403+P233 - Store in a well-ventilated place. Keep container tightly closed. P405 - Store locked up. P410 - Protect from sunlight. P411+P235 - Store at temperatures not exceeding 30°C (86°F). Keep cool. P420 - Store separately. P501 - Dispose of licensed waste disposal facility. to hazardous or special waste collection point, in accordance with local, regional, national and/or international regulations.

2.3 Other hazards

No additional information available

Ingredient(s) with unknown acute toxicity

Not applicable

2.1 Classification of the substance or mixture

GHS US classification Organic peroxide, Type D H242 Heating may cause a fire. Skin corrosion/irritation, Category 2 H315 Causes skin irritation. Serious eye damage/eye irritation, Category 2A H319 Causes serious eye irritation. Specific target organ toxicity – Single exposure, H335 May cause respiratory irritation. Category 3, Respiratory tract irritation Full text of H statements : see section 16

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