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CAS NO.141-05-9
| Diethyl maleate Basic information |
| Product Name: | Diethyl maleate |
| Synonyms: | Diethyl (2Z)-2-butenedioate;Diethylester kyseliny maleinove;diethylesterkyselinymaleinove;kIaleins5urediαthylester;(Z)-2-BUTENEDIOIC ACID DIETHYL ESTER;(Z)-DIETHYL-2-HYDROXYBUTENEDIOATE;MALEIC ACID DIETHYL ESTER;DIETHYL MALEATE |
| CAS: | 141-05-9 |
| MF: | C8H12O4 |
| MW: | 172.18 |
| EINECS: | 205-451-9 |
| Product Categories: | Fatty Acid Esters (Plasticizer);Functional Materials;Plasticizer |
| Mol File: | 141-05-9.mol |
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| Diethyl maleate Chemical Properties |
| mp | −10 °C(lit.) |
| bp | 225 °C(lit.) |
| density | 1.064 g/mL at 25 °C(lit.) |
| vapor density | 5.93 (vs air) |
| vapor pressure | 1 mm Hg ( 14 °C) |
| refractive index |
n |
| Fp | 200 °F |
| Water Solubility | insoluble |
| Merck | 14,3123 |
| BRN | 1100825 |
| Stability: | Stable. Combustible. Incompatible with oxidizing agents, bases, acids, reducing agents. |
| CAS DataBase Reference | 141-05-9(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Butenedioic acid (Z)-, diethyl ester(141-05-9) |
| EPA Substance Registry System | 2-Butenedioic acid (2Z)-, diethyl ester(141-05-9) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36-43-52/53 |
| Safety Statements | 26-36/37-37-24 |
| RIDADR | 3334 |
| WGK Germany | 2 |
| RTECS | ON1225000 |
| HS Code | 29171990 |
| Diethyl maleate Usage And Synthesis |
| Chemical Properties | colourless liquid |
| Diethyl maleate Preparation Products And Raw materials |
| Preparation Products | Malathion-->5-Methoxymethyl-2,3-pyridinedicarboxylic acid -->Fluorene-9-acetic acid-->3-(2-CHLOROPHENYL)PROPIONIC ACID-->Diethyl 2,3-dichlorobutanedioate |
| Raw materials | Maleic anhydride -->Phenethyl alcohol-->AMBERLITE(R) IRC-50 |
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.
