Описание продукта

FORMULA: empirical С8Н4О3

 

 

Application area: it is intended for the production of plasticizers, alkyd resins, dyes, medical preparations and in the rubber industry.

 

Properties: phthalic anhydride is produced in grade A from ortho-xylene, top and first grade.

 

Warranty period of storage – 2 months from the date of manufacture.

 

TECHNICAL SPECIFICATIONS

 

Name of the indicator Mark A
highest grade first grade
1. Appearance White flakes and powder or melt White flakes and powder or melt Yellowish or pinkish tint allowed
2. Mass fraction of phthalic anhydride,%, not less 99,9 99,7
3. Crystallization temperature, ° С, not lower  

130,9

 

130,6

4. Mass fraction of iron,%, not more than  

0,0002

 

0,003

5. Phthalic acid content  

Missing

 

Not standardized

6. Mass fraction of maleic anhydride,%, not more than  

0,05

 

Not standardized

7. Mass fraction of ash,%, not more than  

0,002

 

Not standardized

8. Chromaticity of the melted product, Hazen units, no more:

 

Upon release

 

During the warranty period for powder and flakes

 

During the warranty period for melt

 

 

 

 

15

 

 

 

20

 

 

Not standardized

 

 

 

 

50

 

 

 

80

 

 

Not standardized

9. Chromaticity of the molten product after heating at 250 ° C for 90 minutes, Hazen units, not more than:

 

 

Upon release

 

During the warranty period for powder and flakes

 

 

During the warranty period for melt

 

 

 

 

 

 

40

 

 

 

60

 

 

Not standardized

 

 

 

 

 

 

200

 

 

 

Not standardized

 

 

Not standardized