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Phthalic Anhydride  

PHTHALIC ANHYDRIDE

Name of a product: Phthalic Anhydride (A technical grade).
Chemical name (on IUPAC): 1,3-Dihydro-2-benzofuran-1,3-dione.
Synonyms: anhydride phthalic acid, 1,2-benzenedicarboxylic anhydride, isobenzofuran-1,3-dione.
Empirical formula: С8H4O3.
GOST 7119-77.
CAS-number: 85-44-9.
EINECS-number: 201-607-5.

Phthalic anhydride (A technical grade) is manufactured from ortho-xylene by air catalytic oxidation in gas phrase with vanadium-titanium catalyst.

Usage of Phthalic anhydride (A technical grade): raw material in the production of alkyd resins, phthalate plasticizers (DINP, DOP, DBP etc.), polyester resins, dyestuffs, tyres and technical rubber products, a range of pharmaceuticals and other products.

Specification:

Description Values (Standard)
Appearance
White flakes and powder or melt
Phthalic anhydride content (purity), %
min 99,9
Crystallisation point, °С
min 130,9
Iron content, %
max 0,0002
Phthalic acid content
absent
Maleic anhydride content, %
max 0,05
Ash content, %
max 0,002

Melted product's colour, Hasen units:

  • at output
  • during guarantee period for flakes and powder

 

max 15
max 20

Melted product's colour after heating at 250 ?C during 90 minutes, Hasen units:

  • at output
  • during guarantee period for flakes and powder

 

max 40
max 60

Packing :

•  Polyethylene bags 25 kg net in bulk.

•  Polyethylene bags 25 kg net in pallets.

•  Big-bags 500 kg net.  

Transportation:

•  Railway wagons:

Norm of loading

Packing

52 tons

Polyethylene bags 25 kg net in pallets.

47 tons

Polyethylene bags 25 kg net in pallets.

42 tons

Polyethylene bags 25 kg net in pallets.

27 tons

Polyethylene bags 25 kg net in pallets.

60 tons

Polyethylene bags 25 kg net in bulk.

42,5 tons

Big-bags 500 kg net.

•  40- foot containers:

Norm of loading

Packing

25,4 tons

Polyethylene bags 25 kg net in bulk.

•  20- foot containers:

Norm of loading

Packing

18 tons

Polyethylene bags 25 kg net in bulk.

•  Trucks. Weight of cargo and packing as agreed.

•  Liquid Phthalic Anhydride (A technical grade) is transported in specialized railway tanks with electric heating in net weight of 40 tons.

For additional information contact the petrochemistry department.

Shipping details are here.

 

  
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