N,N'-DI-SEC-BUTYL-P-PHENYLENEDIAMINE

PRODUCT IDENTIFICATION
CAS NO. 101-96-2

N,N'-DI-SEC-BUTYL-P-PHENYLENEDIAMINE
EINECS NO. 202-992-2
FORMULA C14H24N2
MOL WT. 220.36
H.S. CODE  
TOXICITY  
SYNONYMS N,N'-Bis(1-methylpropyl)-1,4-phenylenediamine; Tenamene 2;
N,N'-Di-sec-butil-p-fenilendiamina; N,N'-di-sec-butyl-p-phénylenediamine; N,N'-Bis(1-methylpropyl)-1,4-benzenediamine; Du Pont Gasoline Antioxidant No. 22;
DERIVATIVE 
 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE

yellow to reddish liquid
MELTING POINT 15 -  18 CC
BOILING POINT  
SPECIFIC GRAVITY

0.942
SOLUBILITY IN WATER < 0.1 g/100ml at 20 C
AUTOIGNITION

 
pH  
VAPOR DENSITY  
NFPA RATINGS  
FLASH POINT

146 C
STABILITY Stable under ordinary conditions.

APPLICATIONS
There are three isomers of phenylenediamine: ortho-, meta-, and para-phenylenediamine. They are low toxic diamines used as components of plastic composites and engineering polymers. Phenylenediamine moiety compounds are used to produce aramid fibers, dyes including hair dyes, rubber chemicals (vulcanization accelerators and antioxidants), and pigments. Antioxidant is a substance added in small quantities to hydrocarbons which are susceptible to oxidation, such as rubbers, plastics, foods, and oils to inhibit or slow oxidative processes, while being itself oxidized.  Antioxidants work in two different ways. In primary antioxidants (also called free-radical scavengers), antioxidative activity is implemented by the donation of an electron or hydrogen atom to a radical derivative. These antioxidants are usually hindered amines (p-Phenylene diamine, trimethyl dihydroquinolines, alkylated diphenyl amines) or substituted phenolic compounds with one or more bulky functional groups such as a tertiary butyl at 2,6 position commonly. Butylated hydroxytoluene (BHT) is a common example of hindered phenolic antioxidant. The reaction rate, or carbocation stability, in SN1 mechanism is 3° > 2° > 1° > CH3 (no SN1) so, tertiary alkyl moiety exists in lots of phenolic antioxidant compounds. Primary antioxidants are free radical scavengers which combine with peroxy radicals and break autocatalytic cycle. In secondary antioxidants ( also called peroxide decomposers), activity is implemented by the removal of an oxidative catalyst and the consequent prevention of the initiation of oxidation. Examples of peroxide decomposer type of antioxidant are trivalent phosphorous and divalent sulfurcontaining compound such as sulfides, thiodipropionates and organophosphites. Synergistic effect is expected when primary antioxidants are used together with secondary antioxidants as primary antioxidants are not very effective against the degradation by UV oxidation. Sometimes, chelating agents are added to scavenge metal impurities which can initiate decomposition. N,N'-di-sec-butyl-p-phenylenediamine is used as an antioxidant for fuel, lube oil, and lipids (mineral oils and plant oils).
SALES SPECIFICATION

APPEARANCE

yellow to reddish liquid
CONTENT

95.0% min

MELTING POINT

 15 - 18 C
TRANSPORTATION
PACKING 185kgs in drum
HAZARD CLASS 8 (Packing Group: II)
UN NO. 2922
OTHER INFORMATION
Hazard Symbols: C, Risk Phrases: 25-34-43-50/53, Safety Phrases: 26-36/37/39-45-61