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Maleic Acid Esters
Ⅰ Chemical formula and molecular weight
●Chemical formula:C8H12O4
●Molecular weight:172.17
●CAS No.:141-05-9
Ⅱ Properties and uses
●Colourless, transparent oily liquid,b.p. 115～120℃（20mmHg）,refractive index 1.4383（25℃）.
●It is tiny to dissolve in the water,dissolving easily in the ethanol,ether.
●Used as an organic intermediate for synthesizing malathion,or as monomer for synthesizing high molecular.
Ⅲ Quality standard
| Specification |
Super Grade |
First Grade |
Qualified Grade |
|
Colourity（Pt-Co）,code No. ≤ |
20 |
40 |
60 |
|
Acid value,mgKOH/g ≤ |
0.10 |
0.15 |
0.20 |
|
Density（20℃）,g/cm3 |
1.065±0.003 |
||
|
Content（GC）,% ≥ |
97.0 |
95.0 |
93.0 |
|
Trans content（GC）,% ≤ |
3.0 |
4.0 |
6.0 |
|
Water content,% ≤ |
0.10 |
0.15 |
/ |
Ⅳ Package and storage,safety
●Packed in 200 liter galvanized iron drum,net weight 200 kg/drum.
●Stored at dry,shady,ventilated place. Prevented from collision and sunrays,rain-attack during handling and shipping.
●Met the high hot and clear fire or contact the oxidizing agent,caused the burning danger.
●If skin get in touch with,taking off the contaminated clothes,washed off with plenty of water and soap water thoroughly. If the eye get in touch with,rinsed out with plenty of water with the eyelid held wide open immediately for fifteen minutes. Get medical aid.
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