141-63-9

• 常用中文名：十二甲基五硅氧烷
• 常用英文名：Dodecamethylpentasiloxane
• CAS号：141-63-9
• 分子式：C₁₂H₃₆O₄Si₅
• 分子量：384.839
• 相关类别： 化学试剂 硅烷试剂
• 发布时间：2018-09-01 16:42:01
• 更新时间：2024-01-03 18:59:51
• Dodecamethylpentasiloxane 是硅氧烷的组分,可以用作硅油,对臭虫具有杀虫活性。

名称

• 中文名: 十二甲基五硅氧烷
• 英文名: dodecamethylpentasiloxane
• 英文别名: bis[[dimethyl(trimethylsilyloxy)silyl]oxy]-dimethylsilane; Pentasiloxane, 1,1,1,3,3,5,5,7,7,9,9,9-dodecamethyl-; MFCD00039795; Dodecamethylpentasiloxane; EINECS 205-492-2; Dodecamethyl Pentasiloxane

物化性质

• 密度: 0.9±0.1 g/cm3
• 沸点: 284.4±23.0 °C at 760 mmHg
• 熔点: −81 °C(lit.)
• 分子式: C₁₂H₃₆O₄Si₅
• 分子量: 384.839
• 闪点: 117.4±23.0 °C
• 精确质量: 384.145996
• PSA: 36.92000
• LogP: 8.31
• 外观性状: 透明无色液体
• 蒸汽压: 0.0±0.6 mmHg at 25°C
• 折射率: 1.417
• 储存条件:

  密封储存，储存于阴凉、干燥的库房。氮气保护。

• 稳定性:

  常温常压下稳定，避免与不相容材料，热源，湿空气，水接触。

  与强氧化剂反应。
• 分子结构:

  1、摩尔折射率：108.21

  2、摩尔体积（cm³/mol）：430.7

  3、等张比容（90.2K）：884

  4、表面张力（dyne/cm）：17.7

  5、介电常数：无可用的

  6、极化率（10^-24cm³）：42.89

  7、单一同位素质量：384.14599 Da

  8、标称质量：384 Da

  9、平均质量：384.8393 Da

• 计算化学:

  1.疏水参数计算参考值（XlogP）:无

  2.氢键供体数量:0

  3.氢键受体数量:4

  4.可旋转化学键数量:8

  5.互变异构体数量:无

  6.拓扑分子极性表面积36.9

  7.重原子数量:21

  8.表面电荷:0

  9.复杂度:313

  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:

  1. 性状：无色稍有气味透明液体

  2. 密度（g/mL, 25 ℃ ）：0.875

  3. 相对蒸汽密度（g/mL,空气=1）：未确定

  4. 熔点（ºC）：-81

  5. 沸点（ºC,常压）：230

  6. 沸点（ºC,3mmHg）：91

  7. 折射率(n20/D)：1.395（lit.）

  8. 闪点（ºF）：187

  9. 比旋光度（º）：未确定

  10. 自燃点或引燃温度（ºC）：未确定

  11. 蒸气压（mmHg,20ºC）：＜120

  12. 饱和蒸气压（kPa,83-85ºC）：未确定

  13. 燃烧热（KJ/mol）：未确定

  14. 临界温度（ºC）：未确定

  15. 临界压力（KPa）：未确定

  16. 油水（辛醇/水）分配系数的对数值：未确定

  17. 爆炸上限（%,V/V）：未确定

  18. 爆炸下限（%,V/V）：未确定

  19. 溶解性：微溶于水

生物活性

• 描述: Dodecamethylpentasiloxane 是硅氧烷的组分,可以用作硅油,对臭虫具有杀虫活性。
• 相关类别:
  研究领域 >> 感染
• 参考文献:

  [1]. Luuc Keulen, et al. Bubble-Point Measurements and Modeling of Binary Mixtures of Linear Siloxanes. J Chem Eng Data. 2018;63:10.1021/acs.jced.8b00200.

  [2]. Chen Zha, et al. Toxicities of Selected Essential Oils, Silicone Oils, and Paraffin Oil Against the Common Bed Bug (Hemiptera: Cimicidae). J Econ Entomol. 2018 Feb 9;111(1):170-177.

MSDS

Name: Dodecamethylpentasiloxane 97% Material Safety Data Sheet Synonym: Silicone liquid CAS: 141-63-9 Section 1 - Chemical Product MSDS Name:Dodecamethylpentasiloxane 97% Material Safety Data Sheet Synonym:Silicone liquid Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS CAS# Chemical Name content EINECS# 141-63-9 Dodecamethylpentasiloxane 97 205-492-2 Hazard Symbols: XI 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. Skin: Causes skin irritation. Ingestion: Low hazard for usual industrial handling. Inhalation: Causes respiratory tract irritation. May be harmful if inhaled. Chronic: No information found. Section 4 - FIRST AID MEASURES Eyes: 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. Ingestion: Get medical aid. Wash mouth out with 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. Notes to Physician: 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. Use water spray to keep fire-exposed containers cool. Combustible liquid and vapor. Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical 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. Forms smooth, slippery surfaces on floors, posing an accident risk. Remove all sources of ignition. Provide ventilation. Section 7 - HANDLING and STORAGE Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep away from heat and flame. Avoid breathing vapor or mist. When heated to temperatures above 150C in the presence of air, product can form formaldehyde vapors. Storage: Store in a cool, dry place. Store in a tightly closed container. Storage under a nitrogen blanket has been recommended. 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# 141-63-9: Personal Protective Equipment Eyes: Wear chemical splash goggles. 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 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: colorless Odor: odorless pH: Not available. Vapor Pressure: < 1 mm Hg @ 25 deg C Viscosity: Not available. Boiling Point: 91 deg C @ 3 mmHg Freezing/Melting Point: -81 deg C Autoignition Temperature: Not available. Flash Point: 86 deg C ( 186.80 deg F) Explosion Limits, lower: Not available. Explosion Limits, upper: Not available. Decomposition Temperature: Solubility in water: Negligible. Specific Gravity/Density: 0.88 Molecular Formula: C12H36O4Si5 Molecular Weight: 384.84 Section 10 - STABILITY AND REACTIVITY Chemical Stability: Stable. Conditions to Avoid: Excess heat, exposure to flame. Incompatibilities with Other Materials: Strong oxidizing agents. Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, silicon dioxide, formaldehyde. Hazardous Polymerization: Will not occur. Section 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 141-63-9: SB0970000 LD50/LC50: Not available. Oral LDLo, guinea pig: 50 g/kg. Carcinogenicity: Dodecamethylpentasiloxane - Not listed by ACGIH, IARC, or NTP. Other: See actual entry in RTECS for complete information. Section 12 - ECOLOGICAL INFORMATION Other No information available. Section 13 - DISPOSAL CONSIDERATIONS Dispose of in a manner consistent with federal, state, and local regulations. Section 14 - TRANSPORT INFORMATION IATA No information available. IMO No information available. RID/ADR No information available. 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 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S 37/39 Wear suitable gloves and eye/face protection. WGK (Water Danger/Protection) CAS# 141-63-9: No information available. Canada CAS# 141-63-9 is listed on Canada's DSL List. CAS# 141-63-9 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 141-63-9 is listed on the TSCA inventory. SECTION 16 - ADDITIONAL INFORMATION N/A

毒性和生态

毒理学数据: 1、急性毒性：豚鼠经口LDLo：50mg/kg； CHEMICAL IDENTIFICATION RTECS NUMBER : SB0970000 CHEMICAL NAME : Pentasiloxane, dodecamethyl- CAS REGISTRY NUMBER : 141-63-9 BEILSTEIN REFERENCE NO. : 1792965 LAST UPDATED : 199710 DATA ITEMS CITED : 4 MOLECULAR FORMULA : C12-H36-O4-Si5 MOLECULAR WEIGHT : 384.93 WISWESSER LINE NOTATION : 1-SI-1&1&O-SI-1&1&O-SI-1&1&O-SI-1&1&O-SI-1&1&1 HEALTH HAZARD DATA ACUTE TOXICITY DATA TYPE OF TEST : LDLo - Lowest published lethal dose ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - guinea pig DOSE/DURATION : 50 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : JIHTAB Journal of Industrial Hygiene and Toxicology. (Cambridge, MA) V.18-31, 1936-49. For publisher information, see AEHLAU. Volume(issue)/page/year: 30,332,1948

安全

• 危害码 (欧洲): Xi: Irritant;
• 风险声明 (欧洲): R36/37/38
• 安全声明 (欧洲): S26-S36
• WGK德国: 3
• RTECS号: SB0970000
• 海关编码: 2934999090

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