产品说明
一般描述
Maleic acid is the cis-isomer of butenedioic acid, an unsaturated organic dibasic acid. Maleic acid shows reactions typical of both olefins and carboxylic acids. Commercially important reactions of the acid groups include esterification with glycols to polyesters and dehydration to the anhydride. The double bond is involved in conversions to fumaric acid, to sulfosuccinic acid, and to Malathion.
应用
Maleic acid has been adopted as a high performance organic anode material for lithium ion batteries. In has been reported to have an ultrahigh reversible capacity of ca. 1500 mAhg–1 at 46.2 mAg–1 current density, and a relatively high capacity of 570.8 mAhg–1 at current density of 46.2 Ag–1. When cycled at high current density of 2.31 Ag–1, a capacity retention of 98.1% was obtained after 500 cycles.
Maleic acid has been used in constructing polymeric solid electrolytes for battery and fuel cell research. Maleic acid based polymer blend were reported to increase the ionic conductivity of PEO basd polymer solid electrolytes by suppressing crystallization.
Maleic acid has also been used to make superswelling acrylamide (AAm)/maleic acid (MA) hydrogels by free radical polymerization in aqueous solution of AAm with MA as comonomer with some multifunctional crosslinkers such as trimethylolpropane triacrylate and 1,4-butanediol dimethacrylate. In this hydrogel system, the uptake of cationic dye increased with an increase of MA content in the AAm/MA hydrogels.
基本信息
| 线性分子式 | HO2CCH=CHCO2H |
| 分子量 | 116.07 |
| Beilstein | 605762 |
| MDL编号 | MFCD00063177 |
产品性质
| 质量水平 | 100 |
| 描述 | Residue on Ignition: <= 0.1% |
| 测定 | ≥99.5% (HPLC) ≥99.5% anhydrous basis (HPLC) |
| 形式 | powder |
| 颜色 | white to off-white |
| mp | 130-135 ℃ (lit.) 137-140 ℃ (lit) |
| 密度 | 1.59 g/mL at 20 ℃ (lit.) 1.59 g/mL at 25 ℃ (lit.) |
| SMILES string | OC(=O)\C=C/C(O)=O |
| InChI | 1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1- |
| InChI key | VZCYOOQTPOCHFL-UPHRSURJSA-N |
安全信息
| 象形图 |   |
| 警示用语： | Danger |
| 危险声明 | H302 + H312 - H315 - H317 - H318 - H335 |
| 预防措施声明 | P261 - P264 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338 |
| 危险分类 | Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3 |
| 靶器官 | Respiratory system |
| 储存分类代码 | 8B - Non-combustible, corrosive hazardous materials |
| WGK | WGK 1 |
Sigma-Aldrich
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