Functional Roles
Industries Served
Physical Properties
physical_description
White to yellow solid; mp = 39 deg C; [ICSC] Fine faintly beige crystals; [MSDSonline]
color/form
Pale yellow to white granular solid
boiling_point
266 u00b0F at 760 mmHg (decomposes) (NTP, 1992)
melting_point
40 u00b0C
flash_point
Di-cup r, 160 u00b0F (closed cup); di-cup t, 160 u00b0F (closed cup)
solubility
less than 1 mg/mL at 73 u00b0F (NTP, 1992)
density
1.0 g/cmu00c2u00b3
vapor_density
9.3 (NTP, 1992) - Heavier than air; will sink (Relative to Air)
logp
log Kow = 5.50
stability/shelf_life
Stable under recommended storage conditions.
decomposition
The substance decomposes rapidly on heating and under influence of light, causing fire and explosion hazard.
other_experimental_properties
Strong oxidizer, may ignite organic materials on contact
GHS / SDS Safety
Danger
Environmental Hazard
Flammable
Irritant
Health Hazard
Corrosive
- H315: Causes skin irritation [Warning Skin corrosion/irritation]
- H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H411 (97.4%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
- H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
- H242: Heating may cause a fire [Danger Self-reactive substances and mixtures; Organic peroxides]
- H242 (> 99.9%): Heating may cause a fire [Danger Self-reactive substances and mixtures; Organic peroxides]
- H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
- H360D (31.2%): May damage the unborn child [Danger Reproductive toxicity]
- H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]
- H360D: May damage the unborn child [Danger Reproductive toxicity]
- H314 (13.7%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
- H360: May damage fertility or the unborn child [Danger Reproductive toxicity]
- H320: Causes eye irritation [Warning Serious eye damage/eye irritation]
- H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
- H319 (99.8%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H410: Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]
- H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H315 (99.8%): Causes skin irritation [Warning Skin corrosion/irritation]
Chemical Identity
| CAS Number | 80-43-3 |
| IUPAC Name | 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene |
| InChI Key | XMNIXWIUMCBBBL-UHFFFAOYSA-N |
| PubChem CID | 6641 |
Synonyms & Trade Names
Full Description
Dicumyl Peroxide (CAS 80-43-3) is an organic peroxide compound with the molecular formula C18H22O2 that functions as a crosslinking and curing agent in industrial applications. This specialty additive is primarily utilized in the plastics and polymers industry to initiate crosslinking reactions that enhance material properties such as thermal stability and mechanical strength. With a melting point of 40°C and molecular weight of 270.4, this peroxide-based curing agent provides controlled decomposition for polymer processing applications.