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ChemicalBook > CAS DataBase List > Benzoyl peroxide

Benzoyl peroxide

  • $20.6 - $601
  • Product name:Benzoyl peroxide
  • CAS:94-36-0
  • MF: C14H10O4
  • MW:242.23
  • EINECS:202-327-6
  • MDL Number:MFCD00003071
  • Synonyms:Benzoyl peroxide Manufacturer;Luperox A98, Benzoyl peroxide;Benzoyl peroxide[51% < content ≤100%, inert solid content ≤48%];Benzoyl peroxide[35% < content ≤52%, inert solid content ≥48%];Benzoyl peroxide[36% < content ≤42%, type A diluent ≥18%, water content ≤40%];Benzoyl peroxide[77% < content ≤94%, water content ≥6%];Benzoyl peroxide[content ≤42%, stable dispersion in water];Benzoyl peroxide[content ≤62%, inert solid content ≥28%, water content ≥10%]
Price
  • Brand:Sigma-Aldrich
  • Product number:B5907
  • Product nameBenzoyl peroxide blend with dicyclohexyl phthalate
  • Purity:suitable for use as a catalyst for electron microscopy. Modified to render it safe in transit.
  • Packaging:1vl
  • Price:$20.6
  • Updated:2020/8/18 13:37:41
  • Buy:Buy
  • Brand:Sigma-Aldrich
  • Product number:B5907
  • Product nameBenzoyl peroxide blend with dicyclohexyl phthalate
  • Purity:suitable for use as a catalyst for electron microscopy. Modified to render it safe in transit.
  • Packaging:1 vial
  • Price:$21.3
  • Updated:2021/3/22 19:32:57
  • Buy:Buy
  • Brand:Sigma-Aldrich
  • Product number:179981
  • Product nameBenzoyl peroxide
  • Purity:reagent grade, ≥98%
  • Packaging:50g
  • Price:$41.9
  • Updated:2021/3/22 19:32:46
  • Buy:Buy
  • Brand:Sigma-Aldrich
  • Product number:8.01641
  • Product nameBenzoyl peroxide (with 25% H O) for synthesis. CAS 94-36-0, molar mass 242.23 g/mol., (with 25% H O) for synthesis
  • Purity:
  • Packaging:8016410250
  • Price:$43
  • Updated:2020/8/18 13:37:41
  • Buy:Buy
  • Brand:TCI Chemical
  • Product number:B3152
  • Product nameBenzoyl Peroxide (wetted with ca. 25% Water)
  • Purity:>75.0%(T)
  • Packaging:25g
  • Price:$22
  • Updated:2021/3/22 18:33:09
  • Buy:Buy
Properties
  • Melting point:105 °C(lit.)
  • Boiling point:176°F
  • Density&nbsp;1.16 g/mL at 25 °C(lit.)
  • refractive index&nbsp;1.5430 (estimate)
  • Flash point:>230 °F
  • storage temp.&nbsp;2-8°C
  • solubility&nbsp;0.35mg/l
  • form&nbsp;powder
  • color&nbsp;White
  • Odorodorless
  • Water Solubility&nbsp;Insoluble
  • Merck&nbsp;14,1116
  • BRN&nbsp;984320
  • Exposure limitsTLV-TWA 5 mg/m3; IDLH 7000 mg/m3.
  • Stability:Strong oxidizer. Highly flammable. Do not grind or subject to shock or friction. Incompatible with reducing agents, acids, bases, alcohols, metals, organic materials. Contact with combustible material, heating or friction may cause fire or explosion.
  • InChIKeyOMPJBNCRMGITSC-UHFFFAOYSA-N
  • CAS DataBase Reference94-36-0(CAS DataBase Reference)
  • NIST Chemistry ReferenceBenzoyl peroxide(94-36-0)
  • IARC3 (Vol. 36, Sup 7, 71) 1999
  • EPA Substance Registry SystemBenzoyl peroxide (94-36-0)
Safety Information
  • Symbol(GHS)
  • Signal wordDanger
  • Hazard statements
  • H241:Heating may cause a fire or explosion
  • H242:Heating may cause a fire
  • H317:May cause an allergic skin reaction
  • H319:Causes serious eye irritation
  • H335:May cause respiratory irritation
  • H361:Suspected of damaging fertility or the unborn child
  • H400:Very toxic to aquatic life
  • H410:Very toxic to aquatic life with long lasting effects
  • Precautionary statements
  • P201:Obtain special instructions before use.
  • P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
  • P220:Keep/Store away from clothing/…/combustible materials.
  • P234:Keep only in original container.
  • P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
  • P264:Wash hands thoroughly after handling.
  • P264:Wash skin thouroughly after handling.
  • P271:Use only outdoors or in a well-ventilated area.
  • P272:Contaminated work clothing should not be allowed out of the workplace.
  • P273:Avoid release to the environment.
  • P280:Wear protective gloves/protective clothing/eye protection/face protection.
  • P391:Collect spillage. Hazardous to the aquatic environment
  • P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
  • P308+P313:IF exposed or concerned: Get medical advice/attention.
  • P333+P313:IF SKIN irritation or rash occurs: Get medical advice/attention.
  • P370+P378:In case of fire: Use … for extinction.
  • P405:Store locked up.
  • P410:Protect from sunlight.
  • P412:Do not expose to temperatures exceeding 50 oC/ 122 oF.
  • P420:Store away from other materials.
  • P403+P233:Store in a well-ventilated place. Keep container tightly closed.
  • P410+P412:Protect from sunlight. Do not expose to temperatures exceeding 50 oC/122oF.
  • P501:Dispose of contents/container to..…

Description

Benzoyl peroxide is a strong oxidizing agent that can be used to bleach the organics such as flour, vegetable greases, etc. But it has a strong destructive effect on &beta;-carotene, vitamin A, vitamin E and vitamin B1 in the flour, and the maximum&nbsp; is 0.25~0.3g/kg in the flour. It will easily decompose into free radicals when it is&nbsp; heated to 70~90 ℃, so it is widely used as an initiator of polymerization reaction of olefinic monomer (vinyl chloride, acrylonitrile, etc.) and photochemical reaction. The excessive use of benzoyl peroxide will cause the polymer discolor to yellow, and it also could reduce some pigments. When heated to about 100 ℃, benzoyl peroxide can be quickly decomposed, causing an explosion in the sealed container, so it should be treated as dangerous goods. Benzoyl peroxide is sensitive to impact and friction, and the risk of explosion is high. So we should avoid its contact with metal powder, activated carbon and reducing agent, and comply with the safety of container labels. To prevent the risk of fire, explosion and other danger, when we use it, we usually dilute it to about 20% (diluted benzoyl peroxide) with more than two or three kinds of substances like calcium carbonate, calcium phosphate, calcium sulfate, magnesium carbonate, alum, starch and so on.


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