maleic anhydride
Maleic anhydride and maleic anhydride, maleic anhydride, water loss, apple anhydride is an important basic raw materials, unsaturated organic acid anhydride in the production of pesticides used in the synthesis of organophosphorus insecticide sulfur phosphorus intermediate maleic acid diethyl ester, pyridazine sulfur phosphorus intermediate 1 - phenyl - 3, 6 - dihydroxy pyridazine, and amine chrysanthemum ester pyrethroids pesticide, fungicide, captan intermediates, in addition, also used in the production of unsaturated polyester resin, ink additives, paper additives, coating, and pharmaceutical industry, food industry, etc.
Maleic anhydride (maleic anhydride) quality standard GB 3676-92
project | indicators | ||
Classy article | Grade a | conforming product | |
| appearance | White, yellowish lumpy or flaky crystalline mass | ||
| Content (in maleic anhydride)≥ | 99.5 | 99.0 | 98.5 |
| Molten chromaticity (platinum-cobalt) No. | 25 | 50 | 100 |
| Crystallization point ºC≥ | 52.4 | 52.0 | 51.5 |
| ash%≤ | 0.005 | 0.005 | - |
| Fe ppm≤ | 5 | - | - |
Application:
1. Mainly used in the production of non-ionic surfactant directly and some other important common surfactant when synthesized with various acids;
2. Mainly used to produce glyphosate in pesticide industry;
3. Mainly used as the absorber and desulfurization agent for acid gas purification;
4. Corrosion inhibitor in pharmaceutical industry;
5. Cross-linking agent for high resilience polyurethane foam production;
6. Fabric finishing-agent, softening agent, emulsifier, fluorescent whitening agent and etc. in textile industry;
7. Used as leather and synthetic fiber softener;
8. Thickening agent and foam improver in shampoo and light detergent;
9. Also used as detergent, lubricant, brightener, and dust scavenger for engine piston.
@ By Courier: Fedex, EMS, DHL, TNT, UPS, etc. 7-10 days product will reach you after payment received, if it's agreed as ready stock before order.
@ By air, airport to airport
@ By sea
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