| Product Identification | Back to Contents | 【Product Name】
2-Methylpropanedioic acid | 【Synonyms】
1,1-Ethanedicarboxylic acid
2-Methylmalonic acid
Isosuccinic acid
Methylpropanedioic acid | 【CAS】
516-05-2 | 【Formula】
C4H6O4 | 【Molecular Weight】
118.08 | 【EINECS】
208-219-5 | 【RTECS】
OO1400000 | 【RTECS Class】
Other | 【Beilstein/Gmelin】
1756084 | 【Beilstein Reference】
4-02-00-01932 |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
White. | 【Solubility in water】
Very soluble | 【Melting Point】
168 | 【Boiling Point】
271 | 【Vapor Pressure】
818 (85 C) | 【Density】
1.455 g/cm3 | 【pKa/pKb】
2.97 (pKa) | 【Partition Coefficient】
-.02 | 【Usage】
Increased methylmalonic acid levels in the blood may indicate a vitamin b12 deficiency. |
| First Aid Measures | Back to Contents | 【Ingestion】
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately. | 【Inhalation】
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. | 【Skin】
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Remove contaminated clothing and shoes. | 【Eyes】
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. |
| Handling and Storage | Back to Contents | 【Storage】
Store in a cool, dry place. Keep container closed when not in use. | 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin. | 【Respirators】
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. | 【Exposure Effects】
The toxicological properties of this material have not been investigated. | 【Poison Class】
3 |
| Fire Fighting Measures | Back to Contents | 【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. Extinguishing media: Use agent most appropriate to extinguish fire. |
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