结构式
CAS: 553-26-4
分子式: C10H8N2
分子量: 156.18
中文名称: 4,4'-联吡啶
γ,γ-联吡啶
4,4-联吡啶
英文名称: 4,4'-Bipyridine
4,4'-Dipyridyl
4,4'-bipyridyl
性质描述: 无色或浅黄色结晶, 熔点111.0~112.0℃，沸点305 ℃，易溶于乙醇和乙醚。溶于热水、醇、苯和三氯甲烷。
质量标准:
含量 ≥98%
沸点 305℃(无水物)
水分 ≤0.5%
熔点 109-113℃
灼烧残渣 ≤0.1%
溶解试验 合格
用途：是一种测定铁的试剂，工业上是有机合成的重要中间体，主要用于医药中间体，有机合成，有机溶剂，也可应用于染料生产、农药生产及香料等方面。
其它信息：
Product Identification
【Product Name】4,4'-Dipyridyl
【Synonyms】4,4'-Dipyridine 4,4-联吡啶
【CAS】553-26-4
【Formula】C10H8N2
【Molecular Weight】156.19
【EINECS】209-036-3
【RTECS】DW1760000
【RTECS Class】Other
【Merck】13,3383
【Beilstein/Gmelin】113176
【Beilstein Reference】5-23-08-00028
【EC Class】toxic
Physical and Chemical Properties
【Appearance】Off-white solid.
【Solubility in water】Slightly soluble
【Melting Point】78℃
【Boiling Point】305℃
【Vapor Pressure】0.0015 (25℃)
【pKa/pKb】10.73 (pKb)
【Partition Coefficient】1.2
【Heat Of Vaporization】52.3 kJ/mol
【Usage】Intermediate product.
First Aid Measures
【Ingestion】If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
【Inhalation】Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Skin】Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing 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
【Storage】Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
【Handling】Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Hazards Identification
【Ingestion】Harmful if swallowed. Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
【Inhalation】Inhalation of dust may cause respiratory tract irritation.
【Skin】May cause skin irritation.
【Eyes】May cause eye irritation.
【Hazards】Contact with metals may evolve flammable hydrogen gas.
【EC Risk Phrase】R 20/21 25 36/37/38
【EC Safety Phrase】S 22 26 36/37/39 45
【UN (DOT)】2811
Exposure Controls/Personal Protection
【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.
【Poison Class】3
Fire Fighting Measures
【Flash Point】104℃
【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
【Fire Potential】Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Accidental Release Measures
【Small spills/leaks】Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions.
Stability and Reactivity
【Disposal Code】3
【Stability】Stable under normal temperatures and pressures.
【Incompatibilities】Strong oxidizing agents, strong acids.
【Decomposition】Nitrogen oxides, carbon monoxide, carbon dioxide.
【Combustion Products】Fire may produce irritating, corrosive and/or toxic gases.
Transport Information
【UN Number】2811
【Hazard Class】6.1
【Packing Group】I; II; III
【HS Code】2933 39 99
