| Product Identification | Back to Contents | 【Product Name】
Citraconic acid | 【Synonyms】
(Z)-2-Methylbut-2-enedioic acid
2-Butenedioic acid, 2-methyl-
Methylmaleic acid | 【CAS】
498-23-7 | 【Formula】
C5H6O4 | 【Molecular Weight】
130.1 | 【EINECS】
207-858-7 | 【RTECS】
GE6650000 | 【RTECS Class】
Other | 【Merck】
13,2345 | 【Beilstein/Gmelin】
1722679 | 【Beilstein Reference】
4-02-00-02230 |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Hygroscopic, off-white powder. | 【Solubility in water】
Very soluble | 【Melting Point】
98 - 99 | 【Boiling Point】
336 | 【Vapor Pressure】
2E-5 (25 C) | 【Density】
1.617 g/cm3 | 【pKa/pKb】
3.44 (pKa) | 【Partition Coefficient】
.54 | 【Heat Of Vaporization】
63.7 kJ/mol | 【Heat Of Combustion】
-2008 kJ/mol |
| First Aid Measures | Back to Contents | 【Ingestion】
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. | 【Inhalation】
Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask. | 【Skin】
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. | 【Eyes】
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. |
| Handling and Storage | Back to Contents | 【Storage】
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture. | 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Ingestion】
May cause irritation of the digestive tract. May be harmful if swallowed. | 【Inhalation】
May cause respiratory tract irritation. | 【Skin】
May cause skin irritation. | 【Eyes】
May cause eye irritation. | 【Hazards】
During a fire, irritating and highly toxic gasesmay be generated by thermal decomposition or combustion. | 【EC Risk Phrase】
R 22 | 【EC Safety Phrase】
S 22 36/37 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. | 【Respirators】
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
172 | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Runoff from fire control or dilution water may cause pollution. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam. | 【Upper exp. limit】
14.6 | 【Lower exp. limit】
2.1 |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation. |
| Stability and Reactivity | Back to Contents | 【Incompatibilities】
Oxidizing agents, reducing agents, bases, moisture. | 【Stability】
Stable under normal temperatures and pressures. | 【Decomposition】
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. |
|
| Company Name: |
J & K SCIENTIFIC LTD. |
| Tel: |
010-82848833 400-666-7788 |
| Fax: |
86-10-82849933 |
| WebSite: |
http://www.jkchemical.com |
| Company Name: |
Alfa Aesar |
| Tel: |
400-6106006 |
| Fax: |
021-67582001/03/05 |
| WebSite: |
http://chemicals.thermofisher.cn |
| Company Name: |
Energy Chemical |
| Tel: |
021-021-58432009 400-005-6266 |
| Fax: |
021-58436166 |
| WebSite: |
http://www.energy-chemical.com |
|