2,2'-AZOBIS(2-AMIDINOPROPANE) DIHYDROCHLORIDE

PRODUCT IDENTIFICATION
CAS NO. 2997-92-4

2,2'-AZOBIS(2-AMIDINOPROPANE) DIHYDROCHLORIDE

EINECS NO. 221-070-0
FORMULA C8H18N6·2HCl
MOL WT. 271.19

H.S.CODE

  
TOXICITY Oral rat LD50: 410 mg/kg
SYNONYMS 2,2'-Azobis(2-methylpropionamidine) dihydrochloride;
2,2'-Azobis(isobutyramidine) dihydrochloride; AAPH; 2,2'-Azobis[2-metilpropion amidina], Diclorhidrato (Spanish); 2,2'-Azobis[2-méthylpropionamidine], Dichlorhydrate (French);
SMILES  

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE white to off-white granule
MELTING POINT 160 -169 C (Decomposes)
BOILING POINT  
SPECIFIC GRAVITY

 

SOLUBILITY IN WATER Soluble (soluble in methanol, acidic aq. solution)
pH  
VAPOR DENSITY  

AUTOIGNITION

 

NFPA RATINGS

 Health: 2; Flammability: 0; Reactivity: 0

REFRACTIVE INDEX

  
FLASH POINT

 

STABILITY Stable under ordinary conditions.

APPLICATIONS
Polymerization is initiated generally by free radical. There are four types of free radical initiators which initiate polymerization.
  • Peroxides including hydroperoxides (tertiary-butyl hydroperoxide, benzoylperoxide)
  • Azocompound thermal initiators (azoisobutyronitrile)
  • Redoxinitiators (mixture of iron(III) acetylacetonate): free radicals are formed by one-electron transferreactions. Useful in low temperature and emulsion polymerization
  • Photoinitiators (benzoin, benzil dimethylketal)

Some Azocompound initiators include:

  • 2,2'-Azobis(2-methylpropionamidine) dihydrochloride  (CAS #: 2997-92-4)
  • 2,2'-Azobis(2-methylpropionitrile) (CAS #: 78-67-1)
  • 2,2'-Azobis[2-methylbutanenitrile (CAS #: 13472-08-7)
  • 4,4'-Azobis(4-cyanovaleric acid) (CAS #: 2638-94-0)
  • 2,2'-Azobis(2,4-dimethylvaleronitrile) (CAS #: 4419-11-8)
  • 1,1'-Azobis(cyanocyclohexane) (CAS #: 2094-98-6)
  • 4,4'-Azobis(4-cyanovaleric Acid) (CAS #: 2638-94-0)
  • 1,1'-Azobis(N,N-dimethylformamide) (CAS #: 10465-78-8)
  • 2,2'-Azobis(4-methoxy-2,4-dimethylvaleronitrile) (CAS #: 15545-97-8)
  • 2,2'-Azobis(2-methylbutyronitrile) (CAS #: 13472-08-7)
  • 2,2'-Azobis(2,4,4-trimethylpentane) (CAS #: 39148-34-0)

2,2'-Azobis(2-methylpropionamidine) dihydrochloride is used as a polymerization initiator (water soluble, cationic free radical) for acrylic, vinyl and allyl monomers.
SALES SPECIFICATION

APPEARANCE

 white to off-white granule
ASSAY (BY MASS)

98.5% min

INDIVIDUAL IMPURITY 0.1% max
TRANSPORTATION
PACKING 25kgs in fiber drum
HAZARD CLASS 4.2 (Packing Group: III)
UN NO. 3088
OTHER INFORMATION
Hazard Symbols: XN, Risk Phrases: 22-43, Safety Phrases: 24-37