Substance profile
Lauroyl peroxide
Lauroyl peroxide is a white coarse powder with a faint pungent, soapy odor.
01 · Identification
What Lauroyl peroxide is
Lauroyl peroxide is a white coarse powder with a faint pungent, soapy odor. It melts at 49 °C.
Under the GHS it carries the signal word Danger.
Other names for Lauroyl peroxide
- dilauroyl peroxide
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H242 | Heating may cause a fire. |
03 · Physical and chemical properties
Lauroyl peroxide properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | BOILING POINT: DECOMPOSES | decomposes | HSDB |
| Melting point | 49 °C (120.2 °F) | HSDB | |
| 53.89 °C (129 °F) | CAMEO | ||
| Density | 0.9 g/cm³ | ICSC | |
| 0.91 g/cm³ | at 25 °C, SOLID | HSDB | |
| 0.91 g/cm³ | at 25 °C | CAMEO | |
| Solubility | Insol in water; slightly sol in alc | HSDB | |
| Sol in oils and most organic solvents | HSDB | ||
| Solubility in water: none | ICSC | ||
| Autoignition temperature | 112 °C (233.6 °F) | ICSC | |
| Lower explosive limit (LEL) | EXPLOSION HAZARD: LAURYL PEROXIDE MAY BE REGARDED AS LESS SENSITIVE THAN MOST ORGANIC PEROXIDES. | HSDB | |
| EXPLOSION HAZARD: SEPARATION OF SHOCK-SENSITIVE PEROXIDES FROM THEIR SAFETY DILUENT CAN...CREATE HAZARDOUS CONDITION. | PEROXIDES, ORGANIC | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Lauroyl peroxide
Storage conditions
Store in a cool, well-ventilated storage of noncombustible construction, distant from residences. Separate from other stocks, especially vulcanizing agents, easily oxidizable organic materials, and combustible material; avoid fire and sparks. Provide large-quantity storage room with cool sprinkler system. Protect containers against physical damage. Do not open containers in storage room. Do not place in glass-stopper or screw-capped containers because of possible explosion caused by frictional handling.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
DANGEROUS FIRE & EXPLOSION RISK; WILL IGNITE ORGANIC MATERIALS.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
LAUROYL PEROXIDE is an oxidizing agent. Can ignite organic materials; hence a dangerous fire and explosion risk [Hawley]. Strongly reduced material such as sulfides, nitrides, and hydrides may react explosively. Vigorous reactions with other reducing agents. With charcoal sometimes ignites. [Bretherick, 5th ed., 1995, p. 1194].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Lauroyl peroxide in the storage compatibility matrix →