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Meta-Phenylenediamine (MPD) is an off-white to tan cast solid or a clear liquid that tends to darken on storage. It is sensitive to air, light and moisture, the presence of which will tend to hasten discoloration.

Specification :

Property  

Specification 

Test
Method

meta-Phenylenediamine   

99.5% min  

G.C. 

Other phenylene diamine isomers    

0.4% max 

G.C. 

Moisture content    

0.1% max 

G.C. 

Nitro compounds as dinitrobenzene    

0.1% max 

G.C. 


Physical Properties :

CAS Reg. No.   

108-45-2 

Empirical Formula   

C6H8N2 

Molecular Weight   

108.1 

Boiling Point   

283°C/541°F  

Specific Gravity
    @ 15°C 
    @ 75°C


1.139 
1.10   

Vapor Pressure mmHg
    @ 25°C 
    @ 100°C


0.001765
0.6224   

Solubility in Water, wt. %(25°C)   

35.1 

Flash Point, TOC   

138°C/280°F 

Freezing Point   

63°C/145°F 

 

 

 



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