Phthalic Anhydride Flakes

₹ 63,000 / Metric Ton

MOQ20 Metric Ton
white flakespowder
Supply TypeManufacturer, Exporter, Supplier
Preferred Buyer Location All over the world

pigment production grade CAS 85-44-9 flake 99.5% Phthalic Anhydride 1 Phthalic anhydride is the organic compound with the formula C8H4O3. This anhydride of phthalic acid, a colourless....

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Member Since 12 Years
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Year of Establishment 1992

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pigment production grade CAS 85-44-9 flake 99.5% Phthalic Anhydride

1 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 large-scale production of plasticizers for plastics.

2 Applications in industry and organic synthesis
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 ortho-phthalic acid. This process is reversible: Phthalic anhydride re-forms upon heating the acid above 180 ° C.

3 Hydrolysis of anhydrides is not typically a reversible process. However, phthalic acid is easily dehydrated to form phthalic anhydride due to the creation of a thermodynamically favorable 5-membered ring.

4.specification:

Item	Index
Item	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	-	-

5. Application:
Mainly used in the production of plastic plasticizer, alkyd resin, dye, unsaturated resin and some medicine and pesticide
6. Handing and Storage
Handling General advice:
Ensure thorough ventilation of stores and work areas.
Take precautionary measures against static discharges. Keep away from sources of ignition - No smoking.
Protection against fire and explosion:
Avoid dust formation. Dust can form an explosive mixture with air. Prevent electrostatic charge - sources of ignition should be kept well clear - fire extinguishers should be kept handy. Electrical devices must meet the specified temperature class.
Storage General advice:
Protect against moisture. Containers should be stored tightly sealed in a dry place.
7. Packing:
Packed in 25 kg kraft bag, lined with a PE bag, 25kg in net weight ,or as customer's request