6970-57-6
6970-57-6结构式
- 常用中文名：3-乙基-3-甲基戊二酸酐
- 常用英文名：2H-Pyran-2,6(3H)-dione,4-ethyldihydro-4-methyl-
- CAS号：6970-57-6
- 分子式：C8H12O3
- 分子量：156.17900
- 相关类别： 化学试剂 有机试剂 脂肪酸
- 发布时间：2018-07-02 10:49:36
- 更新时间：2024-01-03 06:44:15
| 中文名 | 3-乙基-3-甲基戊二酸酐 |
|---|---|
| 英文名 | 4-ethyl-4-methyloxane-2,6-dione |
| 英文别名 |
3-Aethyl-3-methyl-glutarsaeure-anhydrid
EINECS 230-194-4 4-Ethyl-4-methyldihydro-2H-pyran-2,6(3H)-dione 4-ethyldihydro-4-methyl-2H-pyran-2,6(3H)-dione 3-ethyl-3-methyl-glutaric acid-anhydride 3-Ethyl-3-methylglutaric anhydride 3-ethyl-3-methyl-pentanedioic acid anhydride 4-ethyl-4-methyl-dihydro-pyran-2,6-dione |
| 密度 | 1.058 g/mL at 25ºC(lit.) |
|---|---|
| 沸点 | 185ºC20 mm Hg(lit.) |
| 分子式 | C8H12O3 |
| 分子量 | 156.17900 |
| 闪点 | 203 °F |
| 精确质量 | 156.07900 |
| PSA | 43.37000 |
| LogP | 1.26630 |
| 折射率 | 1.443 |
| 分子结构 | 1、 摩尔折射率：38.86 2、 摩尔体积（m3/mol）：146.4 3、 等张比容（90.2K）：347.7 4、 表面张力（dyne/cm）：31.7 5、 极化率（10-24cm3）：15.40 |
| 计算化学 | 1.疏水参数计算参考值（XlogP）:1.3 2.氢键供体数量:0 3.氢键受体数量:3 4.可旋转化学键数量:1 5.互变异构体数量:3 6.拓扑分子极性表面积43.4 7.重原子数量:11 8.表面电荷:0 9.复杂度:180 10.同位素原子数量:0 11.确定原子立构中心数量:0 12.不确定原子立构中心数量:0 13.确定化学键立构中心数量:0 14.不确定化学键立构中心数量:0 15.共价键单元数量:1 |
| 更多 | 一、物性数据 性状：不可用 密度（g/mL,25/4℃）：1.058 相对蒸汽密度（g/mL,空气=1）：不可用 熔点（ºC）：不可用 沸点（ºC,常压）：185 沸点（ºC,5.2kPa）：不可用 折射率：不可用 闪点（ºC）：203℉ 比旋光度（º）：不可用 自燃点或引燃温度（ºC）：不可用 蒸气压（kPa,25ºC）：不可用 饱和蒸气压（kPa,60ºC）：不可用 燃烧热（KJ/mol）：不可用 临界温度（ºC）：不可用 临界压力（KPa）：不可用 油水（辛醇/水）分配系数的对数值：不可用 爆炸上限（%,V/V）：不可用 爆炸下限（%,V/V）：不可用 溶解性：不可用 |
Synonym:None Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
Risk Phrases: 36/37/38 Section 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW
Irritating to eyes, respiratory system and skin.Moisture sensitive. 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. 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: Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. Do NOT use mouth-to-mouth resuscitation. 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. Extinguishing Media: Do NOT get water inside containers. 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. Provide ventilation. Do not get water inside containers. Section 7 - HANDLING and STORAGE Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Use with adequate ventilation. Do not allow contact with water. Keep from contact with moist air and steam. Storage: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture. 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# 6970-57-6: 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 prevent skin exposure. 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 respirator use. Section 9 - PHYSICAL AND CHEMICAL PROPERTIES Physical State: Liquid Color: after melting, clear colorless Odor: none reported pH: Not available. Vapor Pressure: Not available. Viscosity: Not available. Boiling Point: 185 deg C @ 20.00mm Hg Freezing/Melting Point: Not available. Autoignition Temperature: Not applicable. Flash Point: 95 deg C ( 203.00 deg F) Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: Not available. Solubility in water: May decompose. Specific Gravity/Density: 1.0580g/cm3 Molecular Formula: C8H12O3 Molecular Weight: 156.18 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable at room temperature in closed containers under normal storage and handling conditions. May decompose on exposure to moist air or water. Conditions to Avoid: Incompatible materials, moisture, excess heat, strong oxidants. Incompatibilities with Other Materials: Strong oxidizing agents, acids, bases, moisture, water. 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# 6970-57-6 unlisted. LD50/LC50: Not available. Carcinogenicity: 3-ethyl-3-methylglutaric anhydride - 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# 6970-57-6: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 6970-57-6 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 6970-57-6 is not listed on the TSCA inventory. It is for research and development use only. SECTION 16 - ADDITIONAL INFORMATION N/A |
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毒理学数据: 二、毒理学数据： 急性毒性：不可用。 生态学数据: 三、生态学数据： 1、其它有害作用：该物质对环境可能有危害，对水体应给予特别注意。
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6970-57-6 |
| 文献：Journal of the Chemical Society, , vol. 99, p. 440 |
| 上游产品 1 | |
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| 下游产品 3 | |
| 海关编码 | 2917190090 |
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| 中文概述 | 2917190090 其他无环多元羧酸. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:6.5% 普通关税:30.0% |
| 申报要素 | 品名, 成分含量, 用途, 对苯二甲酸请注明4-CBA值, 对苯二甲酸请注明P-TL酸值, 对苯二甲酸请注明色度, 对苯二甲酸请注明水分 |
| Summary | 2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |