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Phthalic anhydride (552-30-7) 价格:

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Trimellitic Anhydride (552-30-7)


1. Basic Information


1. Chemical Name: Trimellitic Anhydride


2. Chinese Aliases: Trimellitic Anhydride; Trimellitic Acid Anhydride; PTA; 1,2,4-Benzenetricarboxylic Anhydride; Benzene-1,2,4-tricarboxylic Anhydride; Phthalic Anhydride-4-carboxylic Acid; TMA


3. English Name: Trimellitic Anhydride


4. Molecular Formula: C9H4O5


5. Molecular Weight: 192.13


6. CAS Number: 552-30-7


7. EINECS Number: 209-008-0


8. Appearance: White or light yellow flake or granular solid



2. Technical Parameters


Item


Standard


Premium Quality


Appearance


White or slightly colored flaky solid


Trimellitic Anhydride, wt% ≥


96.5


95.0


Phthalic Anhydride, wt% ≤


0.05


0.10


Acid Value (as KOH)/(mg/g) ≥


873


865


Melting Color / Hazen Unit (Platinum-Cobalt Scale) ≤


130


150


(The above parameters are for reference only; please refer to the factory inspection report for actual values.)



3. Packaging Specifications


1. 25KG/bag


2. 500kg or 1000kg inner plastic woven bag


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