Diisobutyryl peroxide Property

Boiling point:

225.17°C (rough estimate)

Density 

1.0817 (rough estimate)

vapor pressure 

1.2-2.41hPa at 20-25℃

refractive index 

1.4220 (estimate)

Water Solubility 

49.1g/L at 25℃

LogP

0.94-2.6 at 20-25℃

EPA Substance Registry System

Peroxide, bis(2-methyl-1-oxopropyl) (3437-84-1)

Safety

RIDADR 

3115

HazardClass 

5.2

PackingGroup 

II

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H241Heating may cause a fire or explosion

H304May be fatal if swallowed and enters airways

H314Causes severe skin burns and eye damage

H317May cause an allergic skin reaction

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P220Keep/Store away from clothing/…/combustible materials.

P234Keep only in original container.

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P272Contaminated work clothing should not be allowed out of the workplace.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P310Immediately call a POISON CENTER or doctor/physician.

P321Specific treatment (see … on this label).

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P363Wash contaminated clothing before reuse.

P370+P378In case of fire: Use … for extinction.

P370+P380+P375in case of fire: Evacuate area. Fight fire remotely due to the risk of explosion.

P403+P235Store in a well-ventilated place. Keep cool.

P405Store locked up.

P411Store at temperatures not exceeding … oC/…oF.

P420Store away from other materials.

P501Dispose of contents/container to..…

Diisobutyryl peroxide Chemical Properties,Usage,Production

General Description

Diisobutyryl peroxide(in solution,content≤52%) is particularly sensitive to temperature rises and contamination. Above a given "Control Temperature" they decompose violently.

Reactivity Profile

Most of the isolated diacyl(including sulfonyl) peroxides are solids with relatively low decomposition temperatures, and are explosive, and sensitive to shock, heat, or friction. Several, particularly the lower members, will detonate on the slightest disturbance. Autocatalytic, self-accelerating decomposition, which is promoted by tertiary amines, is involved. A sample of ISOBUTYRYL PEROXIDE in ether was being evaporated to dryness with a stream of air when Diisobutyryl peroxide(in solution,content≤52%) exploded violently, [MCA Case History No. 579]. Can generate electrostatic charges. REF [Handling Chemicals Safely, 1980. p. 250].

Flammability and Explosibility

Not classified

Safety Profile

May explode when dried at room temperature. When heated to decomposition it emits acrid smoke and fumes. See also PEROXIDES.