CAS No.

3006-82-4

TSCA Status

listedon inventory

Active oxygen content peroxide

7.40%

EINECS/ELINCS No.

221-110-7

Molecular weight

216.3

Concentration

7.22-7.37%

Density, 20 °C

0.900g/cm³

Viscosity, 20 °C

4.3 mPa.s

TBPEHis an efficient initiator for the production of Low Density Polyethylene
(LDPE). It is used both for tubular and autoclave processes. In most cases a
combination with other peroxides is used to ensure a broad reactivity range. In
suspension polymerization processes, TBPEH can be used for the polymerization
of styrene at approximately 90°C. TBPEH has an activity comparable with
Dibenzoyl peroxide (BPO75). Typically, TBPEH is used in combination with
initiators such as tert-Butyl peroxybenzoate(TBPB) and tert-Butylperoxy 2 ethylhexylcarbonate (TBEC).

Applications

TBPEH(tert-Butylperoxy-2-ethylhexanoate) can be used for the market segments: polymer
production, thermoset composites and acrylics with their different
applications/functions. For more information please check our website and/or
contact us.

Half-life data

Thereactivity of an organic peroxide is usually given by its half-life (t1/2) at
various temperatures. For TBPEH in chlorobenzene half-life at other
temperatures can be calculated by using the equations and constants mentioned
below:

0.1 hr at 113°C

1 hr at 91°C

10 hr at 72°C

Formula1 kd = A·e-Ea/RT

Formula2 t½= (ln2)/kd

Ea 124.90 kJ/mole

A 1.54E+14 s-1

R 8.3142 J/mole·K

T (273.15+°C) K

Thermal stability

Organic peroxides are thermallyunstable 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 Self-Accelerating Decomposition
Temperature (SADT). The SADT is determined on the basis of the Heat
Accumulation Storage Test.

SADT 35°C

Emergencytemperature (Tₑ ) 25°C

Controltemperature (Tc) 20°C

Method The Heat Accumulation Storage Test is a recognized test method for the determination of 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. ) for each organic peroxide product.

TsMax. 10°C and
TsMin. -30°C to prevent crystallization
Note When stored according to these recommendedstorage conditions, TBPEH will remainwithin the Do Sender Chem specifications for a periodof at least 3 months after delivery.

Packaging and transport

20 kgpolyethylene drum.

TBPEHis classified as Organic peroxide type C; liquid, temperature controlled, Division5.2; UN 3113; PG II.

Major decomposition products

Carbon dioxide, tert-Butanol,Heptane, 3-tert-Butoxyheptane
  

TBPEH         

Appearance       

Colorless transparent liquid        

Chromaticity      

20APHA        

Content      

97% min        

TBHP      

0.1% max        

Inorganic & organic hydrolyzable chloride      

100mg/kg max