PRODUCTS

DHBP [2,5-DIMETHYL-2,5-DI(TERT.-BUTYLPEROXY)HEXANE]

DHBP [2,5-DIMETHYL-2,5-DI(TERT.-BUTYLPEROXY)HEXANE] = LUPERSOL 101

CAS Number: 78-63-7
EC Number: 201-128-1
MDL Number: MFCD00053715
Molecular Formula: C16H34O4

DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is a yellowish liquid which has C16H34O4 as chemical formula.

DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is also known as di-tert-butyl 1,1,4,4-tetramethyltetramethylene diperoxide, 2,5-Dimethyl-2,5-bis(tert-butylhydroperoxy)hexane and Di-tert-butyl 1,1,4,4-tetramethyltetramethylene diperoxide.

DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is a clear, yellow liquid.
Colourless to light yellow liquid

Compared with Di-tert-butyl peroxide and DCP, DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is less volatile and more stable.

DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is a very effective high temperature curing agent for vinylsiloxane rubbers with higher tensile strength and lower tensile stretch.

USES and APPLICATIONS of DHBP [2,5-DIMETHYL-2,5-DI(TERT.-BUTYLPEROXY)HEXANE]:
-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is a peroxide curing agent in liquid form and is used in Peroxide curing systems.

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] (CAS NO.78-63-7) is used as the initiator, and polymer degradation agent, silicone rubber, polyurethane rubber, ethylene propylene rubber and other rubber vulcanization agent.

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is used as an initiator (radical source) in the crosslinking of polymers, and the rheology control of polypropylene.

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is a low volatility, yellowish liquid , dialkyl peroxide for crosslinking of elastomers (silicone rubber, EPDM, PE etc.), and is used as modification agent of PP degradation.

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is used as the initiator, and polymer degradation agent, silicone rubber, polyurethane rubber, ethylene propylene rubber and other rubber vulcanization agent.

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] polymer initiator has two main application areas, the viscosity modification of certain polyolefins and the crosslinking of rubber or elastomers.

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is also useful in the curing of engineered rubber compounds containing large amounts of fillers like carbon black.

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is an efficient peroxide for the degradation of polypropylene (CR-PP) in the temperature range of 200-250˚C.

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] allows PP producers great flexibilty in controlling a polymer’s Melt Flow Index (MFI).
Small changes in either peroxide concentration or process temperature can produce significantly different MFI’s.

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] can also be used as chaser catalyst to reduce residual monomer in the mass polymerization of styrene.
-Polymerization initiator

-Initiates degradation of polypropylene, monomer scavenger in styrene polymerization.
-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is a good oxidizing agent.

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is used as curing agent for silicone rubbers, polyurethane rubbers, ethylene-propylene rubbers and other kinds of rubbers, as well as crosslinking agent for polyethylene and curing agent for unsaturated polyether.

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is used as an initiator (radical source) in the crosslinking of polymers, and the rheology control of polypropylene.
-A radical source to control the rheology of polypropylene.

-Used to vulcanize or cross-link elastomers and polyolefins.
-Used as a polymer additive, crosslinking agent, for curing resins, and to make belting, rubber and plastic hose, other rubber products, and plastics

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] is used to cure polymers and elastomers, mainly polyethylene ( LDPE, HDPE), ethylene propylene diene monomer (EPDM), sillicone rubber and fluoroelastomers.

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] acts as initiator for the production of controlled rheology polypropylene (CR-PP).

-DHBP [2,5-Dimethyl-2,5-di(tert.- butylperoxy)hexane] can be used for polymer production, polymer crosslinking, thermoset composites and acrylics with their different applications/functions.
-Initiates degradation of polypropylene, monomer scavenger in styrene polymerization.

-Free radical polymerization initiator.
-Used to control melt index in polypropylene processing.

ADVANTAGES of DHBP [2,5-DIMETHYL-2,5-DI(TERT.-BUTYLPEROXY)HEXANE]:
- Efficient and very versatile
- The paste form facilitates mixing and homogenisation

- Volatile, odour free decomposition products
- no blooming on the vulcanisation surface.

PHYSICAL and CHEMICAL PROPERTIES of DHBP [2,5-DIMETHYL-2,5-DI(TERT.-BUTYLPEROXY)HEXANE]:
Molecular weight: 290.44 g/mol
Physical state: liquid
Color: No data available
Odor: No data available
Melting point/freezing point: No data available
Initial boiling point and boiling range: 55 - 57 °C at 9 hPa - lit.

Flammability (solid, gas): No data available
Upper/lower flammability or explosive limits: No data available
Flash point 65 °C - closed cup
Autoignition temperature: No data available
Decomposition temperature: No data available
pH: No data available
Viscosity, kinematic: No data available

Viscosity, dynamic: No data available
Water solubility No data available
Partition coefficient: n-octanol/water: No data available
Vapor pressure: No data available
Density: 0,877 g/cm3 at 25 °C - lit.

Boiling point: 306.50 °C ± 25 °C @ 760Torr.
Density: 0.872 g/cm3 @ 20 °C
Flash point: 68 ºC
Partition coefficient (log Pow): 7.34
Melting point: 8 °C @ 1 atm
Refractivity: 1.420 – 1.425
Solubility in water: Insoluble (< 0.1 mg/l)

SADT: 80 °C
Vapour pressure: 0.185 Pa @ 25°C
Viscosity: 7.35 mPa.s @ 12 rpm (20°C)
Molecular Weight: 290.44
XLogP3-AA: 3.9
Hydrogen Bond Donor Count: 0
Hydrogen Bond Acceptor Count: 4

Rotatable Bond Count: 9
Exact Mass: 290.24570956
Monoisotopic Mass: 290.24570956
Topological Polar Surface Area: 36.9 Å²
Heavy Atom Count: 20
Formal Charge: 0
Complexity: 252

Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 1
Compound Is Canonicalized: Yes

FIRST AID MEASURES of DHBP [2,5-DIMETHYL-2,5-DI(TERT.-BUTYLPEROXY)HEXANE]:
-If inhaled:
Fresh air.
Call in physician.

-In case of skin contact:
Take off immediately all contaminated clothing.
Rinse skin with water/ shower.
Consult a physician.

-In case of eye contact:
Rinse out with plenty of water.
Call in ophthalmologist.
Remove contact lenses.

-If swallowed:
Immediately make victim drink water (two glasses at most).
Consult a physician.

ACCIDENTAL RELEASE MEASURES of DHBP [2,5-DIMETHYL-2,5-DI(TERT.-BUTYLPEROXY)HEXANE]:
-Environmental precautions:
Do not let product enter drains.

-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Take up carefully with liquid-absorbent material.
Clean up affected area.

FIRE FIGHTING MEASURES of DHBP [2,5-DIMETHYL-2,5-DI(TERT.-BUTYLPEROXY)HEXANE]:
-Extinguishing media:
*Suitable extinguishing media:
Foam
Carbon dioxide (CO2)
Dry powder

*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given

-Further information:
Remove container from danger zone and cool with water.
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of DHBP [2,5-DIMETHYL-2,5-DI(TERT.-BUTYLPEROXY)HEXANE]:
-Control parameters:
*Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:

*Eye/face protection:
Use Safety glasses.

*Skin protection:
Handle with gloves.
Gloves must be inspected prior to use.
Wash and dry hands.

Full contact:
Material: Fluorinated rubber
Minimum layer thickness: 0,7 mm
Break through time: 480 min

Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0,4 mm
Break through time: 30 min

*Body Protection:
protective clothing

-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of DHBP [2,5-DIMETHYL-2,5-DI(TERT.-BUTYLPEROXY)HEXANE]:
-Precautions for safe handling:
*Hygiene measures:
Immediately change contaminated clothing.
Apply preventive skin protection.
Wash hands and face after working with substance.

-Conditions for safe storage, including any incompatibilities
*Storage conditions:
Tightly closed and away from sources of ignition and heat.

*Storage stability:
Recommended storage temperature: 2 - 8 °C

STABILITY and REACTIVITY of DHBP [2,5-DIMETHYL-2,5-DI(TERT.-BUTYLPEROXY)HEXANE]:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).

SYNONYMS:
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane
2,5-Bis(tert-butylperoxy)-2,5-dimethylhexane
2,5-Dimethyl-2,5-di-(tert-butylperoxy)hexane
Varox
Triqanox XQ 8
Lupersol 101
Luperco 101XL
Luperox 101
Perhexa 3M40
Varox 50
2,5-Dimethyl-2,5-di(t-butylperoxy)hexane
2,5-Dimethyl-2,5-bis(tert-butylperoxy)hexane
UNII-923755EYY5
923755EYY5
Kayahexa AD 40C
Varox Liquid
Peroxide, (1,1,4,4-tetramethyl-1,4-butanediyl)bis((1,1-dimethylethyl)
Kayahexa AD
Interox DHBP
Trigonox XQ 8
Kayahexa AD 40
Lupersol 101XL
Trigonox 101
HC 4 (peroxide)
RC 4 (peroxide)
TC 8 (catalyst)
Perhexa 2.5B
Varox DBPH 50
Luperco 101X45
Perhexa 2.5B40
Interox DHBP 45IC/GPeroxide, (1,1,4,4-tetramethyl-1,4-butanediyl)bis[(1,1-dimethylethyl)
CT 8 (crosslinking agent)
Trigonox 101-101/45
AD 40C
CCRIS 4626
CR 05
EINECS 201-128-1
2,5-Dimethyl-2,5-di(tert-butyl peroxy)hexane
NSC 38203
BRN 1863369
Di-tert-butyl 1,1,4,4-tetramethyltetramethylene diperoxide
2,5-Bis(tert-butyldioxy)-2,5-dimethylhexane
2,5-Dimethyl-2,5-bis(tert-butyldioxy)hexane
Hexane, 2,5-dimethyl-2,5-di(tert-butylperoxy)
2,5-Dimethyl-2,5-bis(tert-butylhydroperoxy)hexane
(1,1,4,4-Tetramethyltetramethylene)bis(tert-butyl peroxide)
Peroxide, (1,1,4,4-tetramethyltetramethylene)bis(tert-butyl
DSSTox_CID_5110
EC 201-128-1
DSSTox_RID_77668
DSSTox_GSID_25110
SCHEMBL23327
HEXANE, 2,5-DIMETHYL-2,5-DI(t-BUTYLPEROXY)-
2,5-bis(tert-butyldioxy)hexane
2,5-di(tert-butylperoxy)hexane
CHEMBL1874231
DTXSID9025110
NSC38203
ZINC1670535
Tox21_300177
NSC-38203
2,5-bis(tert-butylhydroperoxy)hexane
AKOS015912764
CAS-78-63-7
NCGC00164156-01
NCGC00164156-02
NCGC00253942-01
2,5-DI(TERT-BUTYLPEROXIDE)HEXANE
AC-16097
2,5-bis(t-butylperoxy)-2,5-dimethylhexane
2,5-dimethyl-2,5-di(t-butyl peroxy)hexane
FT-0610430
2,5-dimethyl-2,5di(tert.butylperoxy) hexane
Hexane,5-dimethyl-2,5-di(tert-butylperoxy)-
2,5-Dimethyl-2,5-dis(tert-butylperoxy)hexane
2,5-Di(t-butylperoxy)-2,5-dimethylhexane
2,5-di(tert.-butyl peroxy)-2,5-dimethyl hexane
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane, 93%
Peroxide,1,4,4-tetramethyltetramethylene)bis[tert-butyl
(1,4,4-Tetramethyltetramethylene)bis[tert-butyl peroxide]
Peroxide,1,4,4-tetramethyl-1,4-butanediyl)bis[(1,1-dimethylethyl)
Luperox(R) 101, 2,5-Bis(tert-butylperoxy)-2,5-dimethylhexane, technical grade, 90%
Peroxide, 1,1'-(1,1,4,4-tetramethyl-1,4-butanediyl)bis(2-(1,1-dimethylethyl)
Luperox(R) 101XL45, 2,5-Bis(tert-butylperoxy)-2,5-dimethylhexane