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Zibo Qingxin Chemicals Co., Ltd.

Phthalic Anhydride, Organic Chemical, Titanium Dioxide manufacturer / supplier in China, offering High Quality CAS: 85-44-9 Phthalic Anhydride 99.5%, BV Certification Main Product Caustic Soda 99% Flake, Directly Factory Price Pentaerythritol 98min and so on.

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High Quality CAS: 85-44-9 Phthalic Anhydride 99.5%

Purchase Qty.:
(Tons)
10-24 25+
FOB Unit Price: US $1,130 US $1,100
Purchase Qty. (Tons) FOB Unit Price
10-24 US $1,130
25+ US $1,100
Get Latest Price
Production Capacity: 10000 Mt Per Mouth
Transport Package: 25kgs Per Bag
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: Phthalic anhydride
  • Appearance: Powder
  • Colour: White
  • Thermostable Chroma: 50
  • Specification: ISO
  • Type: Pharmaceutical Intermediates
  • Quality: Industrial
  • Molten Chroma: 20
  • Trademark: Qingxin
  • Origin: Shandong China
Product Description
                                             High quality Cas:85-44-9 Phthalic anhydride 99.5%
Phthalic anhydride is the organic compound with the formula C8H4O3. This anhydride of phthalic acid, a colourless solid, is an important industrial chemical, especially for the largescale production of plasticizers for plastics.
Specification:

Item

Index

Top grade

First grade

Qualified product

Appearance

white scaly 
or crystalline powder

white scaly or crystalline
 powder with slight colors

molten Chroma(Chroma no. )

20

50

100

thermostable Chroma(Chroma no. )

50

150

-

Chroma of vitriol(Chroma no. )

60

100

150

crystallization point(°C)

130.5

130.3

130.0

Purity(mass fraction)%

99.80

99.50

99.00

Free acid(mass fraction) %

0.20

0.30

0.50

Ash(mass fraction)%

0.05

-

-

Applications of phthalic anhydride
Phthalic anhydride is a versatile intermediate in organic chemistry, in part because it is bifunctional and cheaply available. 
It undergoes hydrolysis and alcoholysis.
Hydrolysis by hot water forms orthophthalic acid. 
This process is reversible: Phthalic anhydride reforms upon heating the acid above 180°C.
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