CAS No.
80-15-9
TSCA Status
listedon inventory
EINECS/ELINCS No.
210-254-7
Molecular weight
152.2
Characteristics
AppearanceClear liquid
Density, 20 °C
1.040g/cm³
Viscosity, 20 °C
5 mPa.s
CHP is a peroxide mixture based oncumyl hydroperoxide, specially developed for curing vinylesterresins in combination with a cobalt accelerator.
Applications
CHP is a peroxide mixture based oncumene hydroperoxide. CHP is especially developed for the cure of vinylester or phenacrylresins in combination with a cobalt accelerator. It can successfully be used
instead of generally applied keton with the following features: no‘gassing’ after the peroxide is mixed in the preaccelerated vinylesterresin. This phenomenon is very often recognized as a disadvantage of ketone
peroxides in vinylesterresins. The use of an amine accelerator is in general not necessary to achieve
a good cure, a fast cure in thin coatings and laminates up to a thickness of
approx. 6 mm and a low peak exotherm in thick laminates.
Thermalstability
Organic peroxides are thermallyunstable substances which may undergo self-accelerating decomposition. The
lowest temperature at which self-accelerating decomposition may occur with a
substance in the packaging as used for transport is the Self-Accelerating
Decomposition Temperature (SADT). The SADT is determined on the basis of the
Heat Accumulation Storage Test.
SADT 60°C
Method The Heat Accumulation Storage Test is a recognized test method for the determinationof the SADT of organic peroxides (see Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria - United Nations, New York and Geneva).
Storage
Due to the relatively unstablenature of organic peroxides a loss of quality can be detected over a period of
time. To minimize the loss of quality, Do Sender Chem recommends a maximum
storage temperature
Ts Max. 25°C
Note When stored under the recommended storage conditions, CHP will remain within the Do Sender Chemspecifications for a period of at least9 months after delivery.
Packagingand transport
Packed in plastic drums withspecifications of 1000kg, 200kg, and 25kg.
CHP is classified as Organicperoxide type F; liquid, Division 5.2; UN 3109.
Majordecomposition products
Acetophenone, phenylisopropanol,methane, water.
CHP
Standard
Appearance
Transparent Liquid
CHP Content WT%
88-90
APHA
100Max
Gardner
<4
PH
4.00-8.00
Density g/cm3
1.03-1.05
Active Oxygen
9.25-9.46