3975-08-4
3975-08-4结构式
- 常用中文名：1,1,4,4-tetraethoxybut-2-yne
- 常用英文名：1,1,4,4-tetraethoxybut-2-yne
- CAS号：3975-08-4
- 分子式：C12H22O4
- 分子量：230.30100
- 发布时间：2016-05-11 03:40:48
- 更新时间：2024-01-09 21:34:04
| 英文名 | 1,1,4,4-tetraethoxybut-2-yne |
|---|---|
| 英文别名 |
acetylene dialdehyde tetraethylacetal
1,1,4,4-tetraethoxy-but-2-yne 1,1,4,4-TETRAETHOXY-2-BUTYNE Acetylenedialdehyde tetraethyl diacetal Butindial-bis-diaethylacetal 2-Butyne,1,1,4,4-tetraethoxy butynedial-bis-diethylacetal |
| 密度 | 0.975g/cm3 |
|---|---|
| 沸点 | 287.9ºC at 760mmHg |
| 分子式 | C12H22O4 |
| 分子量 | 230.30100 |
| 闪点 | 87.2ºC |
| 精确质量 | 230.15200 |
| PSA | 36.92000 |
| LogP | 1.78800 |
| 折射率 | 1.442 |
Synonym:Acetylenedicarbaldehyde Tetraethyldiacetal Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
Risk Phrases: 36/37/38 Section 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW
Irritating to eyes, respiratory system and skin. Potential Health Effects Eye: Causes eye irritation. May cause chemical conjunctivitis. Skin: Causes skin irritation. Ingestion: May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Inhalation: Causes respiratory tract irritation. Can produce delayed pulmonary edema. Chronic: Effects may be delayed. Section 4 - FIRST AID MEASURES Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Skin: Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. 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: Get medical aid immediately. Remove from exposure and move to fresh air immediately. If breathing is difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask. Notes to Physician: Treat symptomatically and supportively. Section 5 - FIRE FIGHTING MEASURES General Information: As in any fire, 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. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. Runoff from fire control or dilution water may cause pollution. Extinguishing Media: Use agent most appropriate to extinguish fire. Use water spray, dry chemical, carbon dioxide, or appropriate foam. Section 6 - ACCIDENTAL RELEASE MEASURES General Information: Use proper personal protective equipment as indicated in Section 8. Spills/Leaks: Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Provide ventilation. Section 7 - HANDLING and STORAGE Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Storage: Keep container closed when not in use. Store in a tightly closed container. Keep refrigerated. (Store below 4C/39F.) Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION Engineering Controls: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low. Exposure Limits CAS# 3975-08-4: Personal Protective Equipment 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 minimize contact with skin. Respirators: Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced. Section 9 - PHYSICAL AND CHEMICAL PROPERTIES Physical State: Liquid Color: clear colorless to pale yellow Odor: Not available. pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: 107 deg C @ 4.00mm Hg Freezing/Melting Point: 17 - 18 deg C Autoignition Temperature: Not applicable. Flash Point: Not applicable. Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: Solubility in water: Specific Gravity/Density: .9525g/cm3 Molecular Formula: C12H22O4 Molecular Weight: 230.00 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable at room temperature in closed containers under normal storage and handling conditions. Conditions to Avoid: Incompatible materials, excess heat, strong oxidants. Incompatibilities with Other Materials: Oxidizing agents. Hazardous Decomposition Products: Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. Hazardous Polymerization: Has not been reported Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 3975-08-4 unlisted. LD50/LC50: Not available. Carcinogenicity: 1,1,4,4-Tetraethoxy-2-Butyne - Not listed by ACGIH, IARC, or NTP. Section 12 - ECOLOGICAL INFORMATION Section 13 - DISPOSAL CONSIDERATIONS Dispose of in a manner consistent with federal, state, and local regulations. Section 14 - TRANSPORT INFORMATION IATA Not regulated as a hazardous material. IMO Not regulated as a hazardous material. RID/ADR Not regulated as a hazardous material. Section 15 - REGULATORY INFORMATION European/International Regulations European Labeling in Accordance with EC Directives Hazard Symbols: XI Risk Phrases: R 36/37/38 Irritating to eyes, respiratory system and skin. Safety Phrases: S 24/25 Avoid contact with skin and eyes. WGK (Water Danger/Protection) CAS# 3975-08-4: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 3975-08-4 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 3975-08-4 is not listed on the TSCA inventory. It is for research and development use only. SECTION 16 - ADDITIONAL INFORMATION N/A |
| 海关编码 | 2909199090 |
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| 文献：Howk; Sauer Journal of the American Chemical Society, 1958 , vol. 80, p. 4607 Org. Synth. Coll. Vol., 1963 , vol. IV, p. 801 |
|
~67%
3975-08-4 |
| 文献：Smith, Brendan M.; Graham, Andrew E. Tetrahedron Letters, 2007 , vol. 48, # 28 p. 4891 - 4894 |
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| 文献：Schoepf; Arnold Justus Liebigs Annalen der Chemie, 1947 , vol. 558, p. 109,123 Full Text Show Details Henkel; Weygand Chemische Berichte, 1943 , vol. 76, p. 812,815 Full Text Show Details Preobrashenskii et al. Zhurnal Obshchei Khimii, 1945 , vol. 15, p. 952,955 Chem.Abstr., 1946 , p. 6488 Full Text Show Details Kranzfelder; Vogt Journal of the American Chemical Society, 1938 , vol. 60, p. 1715 |
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3975-08-4 |
| 文献：Barbot, Francis; Poncini, Laurence; Randrianoelina, Benjamin; Miginiac, Philippe Journal of Chemical Research, Miniprint, 1981 , # 11 p. 4016 - 4035 |
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| 文献：Gorgues; Stephan; Belyasmine; Khanous; Co Tetrahedron, 1990 , vol. 46, # 8 p. 2817 - 2826 |
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详细
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| 文献：Howk; Sauer Journal of the American Chemical Society, 1958 , vol. 80, p. 4607 Org. Synth. Coll. Vol., 1963 , vol. IV, p. 801 |
| 海关编码 | 2909199090 |
|---|---|
| 中文概述 | 2909199090. 其他无环醚及其卤化衍生物（包括磺化，硝化或亚硝化衍生物）. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:5.5%. 普通关税:30.0% |
| 申报要素 | 品名, 成分含量, 用途 |
| Summary | 2909199090. other acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |