It is used to make unsaturated polyester resin, high temperature resistant insulating material, PVC heat resistant plasticizer, epoxy resin curing agent, capacitor impregnating oil and adhesive, etc.
Product Name
Trimellitic Anhydride
Multiple Names
1,2,4-Benzenetricarboxylicacidanhydride;
1,2,4-Benzenetricarboxylicacidanhydride-1,2;
1,2,4-Benzenetricarboxylicacid,Cyclic1,2-Anhydride;
1,2,4-Benzenetricarboxylicacid,Cyclic1,2-Anhydride;
1,2,Chemicalbook4-Benzenetricarboxylicacidanhydride;
1,3-Dihydro-1,3-Dixoxo-5-Isobenzofurancarboxylicacid;
Benzene-1,2,4-Tricarboxylicacid1,2-Anhydridetrimelliticanhydride;
Benzene-1,3,4-Tricarboxylicanhydride.
CAS No. 552-30-7
EC No. 209-008-0
MF No. C9H4O5
MW No. 192.1251
Assay IItem | Standard |
Form | Flakes |
Color | White to off-white |
Acidity Coefficient (pKa) | 3.11±0.20 |
Melting Point | 163-166 °C |
Refractive Index | 1.4717 |
PH | 2 |
1. Good heat resistance.
2. From coal tar fraction.
3. Soluble in anhydrous ethanol.
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