5-PHENYL-1H-TETRAZOLE

PRODUCT IDENTIFICATION
CAS NO. 18039-42-4

5-PHENYL-1H-TETRAZOLE
EINECS NO. 241-950-8
FORMULA C7H6N4
MOL WT. 146.15

H.S. CODE

 2933.99

TOXICITY

  
SYNONYMS 5-Phenyl-2H-Tetrazole; 5-Phenyltetrazole;
5-Fenil-1H-tetrazol (Spanish); 5-Phényl-1H-tetrazole (French);
SMILES

 

CLASSIFICATION

  

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white to off-white crystalline powder
MELTING POINT 216 C (Decomposes)
BOILING POINT  
SPECIFIC GRAVITY

 
SOLUBILITY IN WATER  
pH  
VAPOR DENSITY

 

AUTOIGNITION

 

NFPA RATINGS

  

REFRACTIVE INDEX

 
FLASH POINT

 
STABILITY

Stable under ordinary conditions

GENERAL DESCRIPTION and APPLICATIONS
Tetrazole is one of a class of organic heterocyclic compounds containing a five-membered diunsaturated ring structure composed of four nitrogen atoms and one carbon atom. The simplest member of the tetrazole family is tetrazole itself, white to pale yellow crystalline solids with a weak characteristic odor; soluble in water and alcohol, melts at 156 C. Tetrazole is explosive. It is used as a gas generating agent for air bags. Shipment of tetrazole is available only as a solution in some countries. Tetrazole and its derivatives are used for biological activities such as antiviral, antibacterial, antifungal and antituberculous. They are used as catalysts in the synthesis of phosphonates.

5-Phenyltetrazole is used as a non-ammonia foaming agent for engineering plastics such as polycarbonate, styrenics, polyamides, fluoro plastics and PET.
SALES SPECIFICATION

APPEARANCE

 white to off-white crystalline powder

ASSAY

98.0% min

MELTING POINT

 216 C

FORMING GRADE

APPEARANCE

 white powder

DECOMPOSITION

234 - 245 C

GAS VOLUME

> 180 (ml/g)
TRANSPORTATION
PACKING
10kgs in drum
HAZARD CLASS  
UN NO.  
OTHER INFORMATION
Hazard Symbols: XN, Risk Phrases: 5/8, Safety Phrases:
DESCRIPTION OF BLOWING AGENT

Blowing agents, also called Foaming agents, can be classified as Physical and Chemical Blowing Agents. Physical blowing agents are not under chemical changes during processing. Physical blowing agents are in forms of liquid or compressed gas which will transfer state into gases or low boiling liquid during processing causing resins into cellular structure. Chemical Blowing Agents are mainly solid form of hydrazine derivatives include Azodicarbonamide; p,p'-Oxybis(benzenesulfonyl hydrazide); 5-Phenyltetrazole; p-Toluene sulfonyl semicarbazide; Trihydrazine Triazine; They commonly release gases such as nitrogen, carbon dioxide, carbon monoxide or ammonia. But ammonia is not desirable as it effects on degrade of resins. There are nonazo blowing agents releasing carbon dioxide such as sodium borohydride.

Blowing Agent Class

  • Azo Compounds
    • Azodicarbonamide (CAS RN: 123-77-3)
  • Hydrazine Compounds
    • p-Toluenesulfonylhydrazide (CAS RN: 1576-35-8)
    • p,p'-Oxybis (Benzenesulfonylhydrazide) (CAS RN: 80-51-3)
    • Benzenesulfonyl Hydrazide (CAS RN: 80-17-1)
    • p-Toluenesulfonyl acetone hydrazone
  • Carbazides
    • p-Toluenesulfonylsemicarbazide (CAS RN: 10396-10-18)
    • p,p'-Oxybis (Benzenesulfonylsemicarbazide)
  • Tetrazoles
    • 5-Phenyltetrazole (CAS RN: 18039-42-4)
  • Nitroso Compounds
    • N,N’-Dinitroso-pentamethylenetetramine (CAS RN: 101-25-7)
  • Carbonates
    • Sodium Bicarbonate (CAS RN: 144-55-8)