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Safety Information

632651

Sigma-Aldrich

Luperox® A70S, Benzoyl peroxide

70%, remainder water

Synonym(s):

Benzoyl peroxide, Dibenzoyl peroxide

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About This Item

Linear Formula:
(C6H5CO)2O2
CAS Number:
Molecular Weight:
242.23
Beilstein:
984320
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23

Assay

70%

form

solid

autoignition temp.

176 °F

reaction suitability

reagent type: oxidant

mp

105 °C (lit.)

storage temp.

2-8°C

SMILES string

O=C(OOC(=O)c1ccccc1)c2ccccc2

InChI

1S/C14H10O4/c15-13(11-7-3-1-4-8-11)17-18-14(16)12-9-5-2-6-10-12/h1-10H

InChI key

OMPJBNCRMGITSC-UHFFFAOYSA-N

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Application

Widely used initiator, curing agent, and cross-linking agent in polymerization processes.

Legal Information

Luperox is a registered trademark of Arkema Inc.

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Org. Perox. C - Skin Sens. 1

Storage Class Code

4.1A - Other explosive hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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Certificates of Analysis (COA)

Lot/Batch Number

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. What are some common impurities in Luperox® A70S (Product No. 632651)?

    Sigma-Aldrich does not identify the impurities present in the Product No. 632651.  Some expected impurities according to vendor information will be benzoyl chloride and benzoic acid.

  6. What is the Self Accelerating Decomposition Temperature of Luperox® A70S (Product No. 632651)?

    According to vendor information the self accelerating decomposition temperature of Product No. 632651 is 71°C.

  7. How is Luperox® A70S (Product No. 632651) manufactured?

    As the actual production method for Product No. 632651 is considered proprietary, one could review the literature for more information. Please see the following paper: A. I. Vogel, Practical Organic Chemistry (Longmans, London, 3rd ed., 1954) p 807, describes benzoyl peroxide formation from benzoyl chloride and a cooled solution of sodium peroxide.

  8. What are the uses for Luperox® A70S (Product No. 632651)?

    The product 632651 is used in many applications.  Most notably as a source of free radicals for industrial processes. Oxidizing agent in bleaching oils, flour, etc.; catalyst in the plastics industry; and as an initiator in polymerization.

  9. What is the difference between Luperox and benzoyl peroxide?

    Luperox is benzoyl peroxide. Luperox is a trademark name for the chemical. The two have equivalent CAS numbers and are therefore the same.

  10. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

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Journal of food science, 77(7), C818-C823 (2012-07-05)
Residual annatto colorant (norbixin) in fluid Cheddar cheese whey can be bleached. The 2 approved chemical bleaching agents for whey, hydrogen peroxide (HP) and benzoyl peroxide (BP), negatively impact the flavor of dried whey protein. The objective of this study
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Journal of food science, 78(2), R129-R137 (2013-01-22)
Whey is a value-added product that is utilized in many food and beverage applications for its nutritional and functional properties. Whey and whey products are generally utilized in dried ingredient applications. One of the primary sources of whey is from
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Antibiotic resistance of Propionibacterium acnes (P. acnes) is a growing phenomenon in the wake of widespread use of topical and systemic antibiotics for acne vulgaris. Benzoyl peroxide has a proven track record of safety and efficacy, and can decrease reliance

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