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.
02 · Identifiers
Lauroyl peroxide identifiers and molecular data
Lauroyl peroxide CAS number and EC number
Other names for Lauroyl peroxide
- dilauroyl peroxide
03 · GHS classification
Lauroyl peroxide hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Lauroyl peroxide pictograms and signal word
Lauroyl peroxide hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Organic peroxides or Self-reactive substances and mixtures | Category Type C and D or Type E and F | H242 | GHS02 |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
Lauroyl peroxide hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H242 | Heating may cause a fire. |
This page lists only the codes assigned to Lauroyl peroxide. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for Lauroyl peroxide
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of Lauroyl peroxide issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
04 · Precautionary statements
Lauroyl peroxide precautionary statements
CLP Annex VI assigns 4 precautionary statements to Lauroyl peroxide. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
General
Statements that belong on the label whoever handles the product.
Disposal
What has to happen to the contents and the empty container.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
Lauroyl peroxide name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | дилауроилпероксид |
| Spanish español | Peróxido de dilauroílo |
| Czech čeština | dilauroylperoxid |
| Danish dansk | dilauroylperoxid |
| German Deutsch | Dilauroylperoxid |
| Estonian eesti | dilaurüülperoksiid |
| Greek ελληνικά | διλαουροϋλο-υπεροξείδιο |
| English English | dilauroyl peroxide |
| French français | peroxyde de dilauroyle |
| Croatian hrvatski | dilauroil peroksid |
| Italian italiano | perossido di dilauroile dilauroile perossido |
| Latvian latviešu | dilauroilperoksīds |
| Lithuanian lietuvių | dilauroilperoksidas |
| Hungarian magyar | dilauroil-peroxid |
| Maltese Malti | perossidu dilawrojl |
| Dutch Nederlands | dilauroylperoxide |
| Polish polski | nadtlenek dilauroilowy |
| Portuguese português | peróxido de dilauroílo |
| Romanian română | peroxid de dilauril |
| Slovak slovenčina | didodekanoylperoxid |
| Slovenian slovenščina | dilavroil peroksid |
| Finnish suomi | dilauroyyliperoksidi |
| Swedish svenska | dilauroylperoxid |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
Lauroyl peroxide GHS label elements
Everything CLP Annex VI fixes for Lauroyl peroxide, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Lauroyl peroxide
- Heating may cause a fire.
- If medical advice is needed, have product container or label at hand.
- Keep out of reach of children.
- Read carefully and follow all instructions.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Lauroyl peroxide in the GHS label constructor →
07 · Health hazards
Lauroyl peroxide health hazards and exposure limits
Lauroyl peroxide hazard summary
A skin, eye, and respiratory tract irritant; [ICSC] An irritant; [MSDSonline]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Lauroyl peroxide carcinogenicity classification
Evaluation: No epidemiological data relevant to the carcinogenicity of lauroyl peroxide were available. There is inadequate evidence in experimental animals for the carcinogenicity of lauroyl peroxide. Overall evaluation: Lauroyl peroxide is not classifiable as to its carciogenicity to humans (Group 3).
Source: Hazardous Substances Data Bank (HSDB)
An IARC group and a CLP classification answer different questions. IARC judges whether the evidence for cancer in humans is strong enough; CLP Annex VI is the legally binding EU classification. A substance can carry one and not the other.
08 · 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.
Lauroyl peroxide boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | BOILING POINT: DECOMPOSES | decomposes | HSDB |
Lauroyl peroxide melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 49 °C (120.2 °F) | HSDB | |
| 53.89 °C (129 °F) | CAMEO |
Lauroyl peroxide density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.9 g/cm³ | ICSC | |
| 0.91 g/cm³ | at 25 °C, SOLID | HSDB | |
| 0.91 g/cm³ | at 25 °C | CAMEO |
Lauroyl peroxide solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Insol in water; slightly sol in alc | HSDB | |
| Sol in oils and most organic solvents | HSDB | ||
| Solubility in water: none | ICSC |
Lauroyl peroxide autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 112 °C (233.6 °F) | ICSC |
Lauroyl peroxide lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| 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.
09 · Fire and explosion
Lauroyl peroxide fire and explosion behaviour
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Lauroyl peroxide fire potential
FIRE HAZARD: ORGANIC PEROXIDES CONTAIN SUFFICIENT AVAILABLE OXYGEN TO SUPPORT THEIR OWN COMBUSTION EVEN IN A DEFICIENCY OR ABSENCE OF ATMOSPHERIC OXYGEN. /PEROXIDES, ORGANIC/
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Lauroyl peroxide storage and handling
Lauroyl peroxide safe storage
Fireproof. Separated from combustible substances and reducing agents. Cool.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
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)
Lauroyl peroxide incompatible materials
DANGEROUS FIRE & EXPLOSION RISK; WILL IGNITE ORGANIC MATERIALS.
Source: Hazardous Substances Data Bank (HSDB)
Lauroyl peroxide 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 →
11 · Questions
Lauroyl peroxide — frequently asked questions
What is the CAS number of Lauroyl peroxide?
The CAS number of Lauroyl peroxide is 105-74-8. Its EC number is 203-326-3.
What does a Lauroyl peroxide label have to show?
Under CLP Annex VI the label for Lauroyl peroxide carries the pictogram Flame and the signal word is Danger.
Is Lauroyl peroxide flammable?
Yes. CLP Annex VI assigns Lauroyl peroxide H242 — heating may cause a fire.
Is Lauroyl peroxide a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Lauroyl peroxide. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health. IARC places it in Group 3: not classifiable as to its carcinogenicity to humans.
What is the boiling point of Lauroyl peroxide?
The boiling point reported for Lauroyl peroxide is BOILING POINT: DECOMPOSES, decomposes (HSDB).
What is the melting point of Lauroyl peroxide?
The melting point reported for Lauroyl peroxide is 49 °C (120.2 °F) (HSDB).
How should Lauroyl peroxide be stored?
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. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Lauroyl peroxide
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