Product Data Sheet

Perkadox 14S-FL
Di(tert-butylperoxyisopropyl)benzene

Controlled rheology polypropylene (CR-PP): High meltflow index polypropylene grades are produced by post
reactor treatment. These high melt-flows are achievedby peroxide-initiated degradation during extrusion of
the polypropylene. The advantage of this process is thehigh flexibility; the peroxide concentration controls thefinal viscosity. Coagent for flame retardant polystyrene:
Polystyrene is made flame retardant by the use of
halogen-containing additives such as
hexabromocyclododecane (HBCD). Perkadox® 14S-FL
can be used as a synergist in such systems thereby
leading to a significant reduction in the amount of
HBCD required.

CAS number25155-25-3, 2212-81-9

EINECS/ELINCS No.
218-664-7

TSCA statuslisted on inventory

Molecular weight
338.5

Active oxygen content
peroxide
9.45%

Concentration
9.26% min.

Specifications
Appearance

Slightly yellow flakes

Assay≥ 98.0 %Applications
Perkadox® 14S-FL can be used for the market segments: polymer production, polymer crosslinking and polymer recycling
with their different applications/functions. For more information please check our website and/or contact us.Half-life data
The reactivity of an organic peroxide is usually given by its half-life (t½) at various temperatures. For Perkadox® 14S-FL inchlorobenzene:
0.1 hr

156

1 hr

134

10 hr

114

Formula 1

kd = A·e-Ea/RT

Formula 2t½ = (ln2)/kd

Ea152.69A

7.65E+15R

8.3142 J/mole·KT(273.15+°C) K

Thermal stability
Organic peroxides are thermally unstable substances, which may undergo self-accelerating decomposition. The lowest
temperature at which self-accelerating decomposition of a substance in the original packaging may occur is the SelfAccelerating Decomposition Temperature (SADT). The SADT is determined on the basis of the Heat Accumulation Storage
Test.
SADT80°C (176°F)

MethodThe Heat Accumulation Storage Test is a recognized test method for thedetermination of the SADT of organic peroxides (see Recommendations on theTransport of Dangerous Goods, Manual of Tests and Criteria - United Nations, NewYork and Geneva).

StorageDue to the relatively unstable nature of organic peroxides a loss of quality can be detected over a period of time. To
minimize the loss of quality, Nouryon recommends a maximum storage temperature (Ts max. ) for each organic peroxide
product.
Ts max.

20°C (68°F) to prevent cakingNotePerkadox® 14S-FL can be safely stored at 30°C (86°F) max without loss of activity.
When stored under strictly recommended storage conditions, Perkadox® 14S-FL
will remain within the Nouryon specifications for a period of at least 12 months
after delivery.

Packaging and transport
The standard packaging is a cardboard box for 4 x 5 kg peroxide. Both packaging and transport meet the international
regulations. For the availability of other packed quantities contact your Nouryon representative. Perkadox® 14S-FL isclassified as Organic peroxide type D; solid, Division 5. 2; UN 3106.

Safety and handling
Keep containers tightly closed. Store and handle Perkadox® 14S-FL in a dry well-ventilated place away from sources ofheat or ignition and direct sunlight. Never weigh out in the storage room. Avoid contact with reducing agents (e. g.
amines), acids, alkalis and heavy metal compounds (e. g. accelerators, driers and metal soaps). Please refer to the Safety
Data Sheet (SDS) for further information on the safe storage, use and handling of Perkadox® 14S-FL. This information
should be thoroughly reviewed prior to acceptance of this product. The SDS is available at nouryon.com/sds-search.

Major decomposition products
tert-Butanol, Methane, Acetone, Bis(2-hydroxyisopropyl)benzene,

All information concerning this product and/or suggestions for handling and use contained herein are offered in good faith and are believed to be reliable.
Nouryon, however, makes no warranty as to accuracy and/or sufficiency of such information and/or suggestions, as to the product's merchantability or
fitness for any particular purpose, or that any suggested use will not infringe any patent. Nouryon does not accept any liability whatsoever arising out of theuse of or reliance on this information, or out of the use or the performance of the product. Nothing contained herein shall be construed as granting orextending any license under any patent. Customer must determine for himself, by preliminary tests or otherwise, the suitability of this product for his purposes.
The information contained herein supersedes all previously issued information on the subject matter covered. The customer may forward, distribute, and/orphotocopy this document only if unaltered and complete, including all of its headers and footers, and should refrain from any unauthorized use. Don’t copy
this document to a website.

Perkadox® is a registered trademark of Nouryon Functional Chemicals B.V. or affiliates in one or more territories.

Contact Us
Polymer Specialties Americas
polymer.amer@nouryon.com
Polymer Specialties Europe, Middle East, India and Africa
polymer.emeia@nouryon.com
Polymer Specialties Asia Pacificpolymer.apac@nouryon.com

2024-4-17© 2024Perkadox 14S-FL

Polymer production