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Phthalic Anhydride 85-44-9

CAS No.: 85-44-9
Type: Organic Intermediates
Appearance: White flake or crystalline powder
Molecular Formula： C8H4O3
Shelf Life：-1 Year
Min Order Quantity: 1 ton

Item	Specifications	Test Method	Test Result
Appearance	White flake or crystalline powder	-	White flake or crystalline powder
Melting Color (Pt/Co), ≤	20 APHA Max	ASTM D3366	20#
Heating Color (Pt/Co), ≤	50 APHA Max	ASTM D3366	40#
Sulphuric Acid Colour Index (Pl/Co), ≤	40 APHA Max	ASTM D3366	10#
Solidification Point, ≥	130.5 Degree C Min	ASTM D 1493	t31.0℃
Purity, ≥	99.50% Min	G/C	99.96%
Free Acid, ≤	0.20%	GB/T15336-2013	0.06%

(1) Phthalic anhydride is one of the most important organic chemical raw materials. Its main derivatives are dibutyl phthalate, dioctyl phthalate and diisobutyl acrylate.

(2) Phthalic Anhydride is used as a plasticizer for PVC; it can also be used to produce unsaturated poly ester resin, alkyd resin, dyes and pigments, various paints, food additives, laxatives in medicine, phenolphthalein, imipenem in pesticides, bentazone and sodium saccharin.

(3)Phthalic Anhydride can also used as an analytical reagent and for organic synthesis.

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