(E)-but-2-enedioic acid

(E)-but-2-enedioic acid is an organic dicarboxylic acid with the molecular formula C4H4O4 and CAS number 110-17-8. This compound, also known as fumaric acid, is characterized by its double bond configuration in the E (trans) form. With a molecular weight of 116.07 g/mol, it belongs to the family of unsaturated dicarboxylic acids and appears as white crystalline solid at room temperature.

(E)-but-2-enedioic acid presents as white crystalline needles or powder at room temperature. It has a melting point around 287°C and demonstrates limited solubility in cold water but increased solubility in hot water. The compound is also soluble in alcohol and slightly soluble in ether. It exhibits characteristic carboxylic acid properties and can form salts with bases.

(E)-but-2-enedioic acid serves multiple industrial applications including food additive manufacturing as an acidity regulator, pharmaceutical intermediate synthesis, and resin production. It is utilized in the production of polyester resins, plasticizers, and as a component in adhesives. The compound also finds applications in paper sizing, textile processing, and as a chemical intermediate for various organic syntheses.

(E)-but-2-enedioic acid requires careful handling due to its Eye Irritant 2 classification under GHS07 pictogram. Always wear appropriate eye protection, protective gloves, and ensure adequate ventilation during use. Avoid direct contact with eyes and skin, and prevent inhalation of dust particles. Implement proper hygiene measures including washing hands thoroughly after handling and before eating or drinking.

(E)-but-2-enedioic acid should be stored in a cool, dry, well-ventilated area away from incompatible materials. Keep containers tightly closed and protected from moisture to prevent degradation. Store away from strong bases, oxidizing agents, and reducing agents. Maintain storage temperatures below 25°C and ensure proper labeling according to GHS requirements with appropriate warning pictograms.

Eye contact with (E)-but-2-enedioic acid requires immediate irrigation with clean water for at least 15 minutes while holding eyelids open. Remove contact lenses if easily removable. For skin contact, wash affected area thoroughly with soap and water. If inhaled, move to fresh air immediately. Seek medical attention if irritation persists or symptoms develop. Do not rub eyes after contact.

(E)-but-2-enedioic acid waste must be disposed of according to local, national, and international environmental regulations. Contact authorized waste management companies for proper disposal. Do not discharge into drains, waterways, or soil. Small quantities may be neutralized with appropriate bases under controlled conditions before disposal. Always consult local authorities for specific disposal requirements and approved waste treatment facilities.

(E)-but-2-enedioic acid transport follows standard chemical shipping procedures as it does not fall under specific ADR dangerous goods classification. Use appropriate packaging materials that prevent moisture ingress and ensure containers are properly sealed and labeled. Follow general chemical transport guidelines including proper documentation, handling instructions, and emergency contact information during shipment.

(E)-but-2-enedioic acid is regulated under European CLP regulation requiring classification as Eye Irritant 2 with Warning signal word and GHS07 pictogram. It is subject to REACH registration requirements for commercial use in the EU. The substance is not classified as SVHC (Substance of Very High Concern) and follows standard chemical registration procedures for industrial and professional applications.

(E)-but-2-enedioic acid is available through OYSI, a leading European distributor of technical chemicals. OYSI provides this compound with proper documentation, safety data sheets, and regulatory compliance for industrial and professional users across Europe. Contact OYSI's technical team for product availability, specifications, packaging options, and delivery information tailored to your specific application requirements.