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Benzoyl peroxide

Price Properties Safety Information Description

$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
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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
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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
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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
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Properties

Melting point:105 °C(lit.)
Boiling point:176°F
Density 1.16 g/mL at 25 °C(lit.)
refractive index 1.5430 (estimate)
Flash point:>230 °F
storage temp. 2-8°C
solubility 0.35mg/l
form powder
color White
Odorodorless
Water Solubility Insoluble
Merck 14,1116
BRN 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 β-carotene, vitamin A, vitamin E and vitamin B1 in the flour, and the maximum  is 0.25~0.3g/kg in the flour. It will easily decompose into free radicals when it is  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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