Octamethylcyclotetrasiloxane 八甲基环四硅氧烷

CAS 556-67-2 MFCD00003269

化学结构图

556-67-2
SMILES: C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1

化学属性

Mol. FormulaC8H24O4Si4
Mol. Weight296.62
Refractive index1.3950 to 1.3980
Boiling Point175°C
Density0.956
Melting Point17-18
Flash Point54°C(lit.)
TSCAYes
Vapor Density1 (vs air)
Solubility不溶
Appearance 无色透明液体。熔点17.5℃，沸点175℃，74℃（2.66kPa）。相对密度0.9558（20/4℃）。折光率1.3968。闪点60℃。能与有机溶剂溶混，不溶于水。
Stabilitymoisture sensitive

别名和识别编码

Chemical NameOctamethylcyclotetrasiloxane
CAS Number556-67-2
PubChem Substance ID87574146
EC Number209-136-7
Beilstein Registry Number1787074
MDL NumberMFCD00003269
Synonym Octamethylcyclotetrasiloxane {LY} Octamethylcyclotetrasiloxane {} {LY} Octamethylcyclotetrasiloxane {} {} {LY} Octamethylcyclotetrasiloxane {} {} {} {LY} Octamethylcyclotetrasiloxane {} {} {} {} {LY} Octamethylcyclotetrasiloxane {} {} {} {} {} {LY} Octamethylcyclotetrasiloxane {} {} {} {} {} {} {LY} Octamethylcyclotetrasiloxane {} {} {} {} {} {} {} { {} {} {} {} {} {} {} {LY} Octamethylcyclotetrasiloxane {} {} {} {} {} {} {} {} {LY} Octamethylcyclotetrasiloxane {} {} {} {} {} {} {} {} {} {LY} Octamethylcyclotetrasiloxane {} {} {} {} {} {} {} {} {} {} {LY} Octamethylcyclotetrasiloxane {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Octamethylcyclotetrasiloxane {} {} {} {} {} {} {} {} {} {} {} {} {LY} Octamethylcyclotetrasiloxane {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Octamethylcyclotetrasiloxane {} {} {} {} {} {} {} {} {} {} {} {} {} {} { {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Octamethylcyclotetrasiloxane {} {} {} {} {} {} {}
Reaxys-RN1787074
Merck Number6747
Chemical Name Translation八甲基环四硅氧烷
LabNetwork Molecule IDLN00193665
InChIInChI=1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3
Canonical SMILESC[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1
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分类

  • {SNA} Chemical Synthesis, Micro/NanoElectronics, Organometallic Reagents, Organosilicon, Self Assembly and Lithography, Self-Assembly Materials, Silanes, Siloxanes, 材料科学
  • {SNA} Chemical Synthesis, Organometallic Reagents, Organosilicon, Siloxanes
  • Chemical Synthesis, Materials Science, Micro/NanoElectronics, Organometallic Reagents, Organosilicon, Self Assembly & Contact Printing, Self-Assembly Materials, Silanes, Siloxanes
  • {SNA} Chemical Synthesis, Micro/NanoElectronics, Organometallic Reagents, Organosilicon, Self Assembly & Contact Pri

相关文献及参考

  • Short: II/25D
  • Short: II/5
  • Useful for deactivating glass GC capillary columns.

安全信息

GHS Symbol
WGK Germany3
Hazard statements
  • H226 Flammable liquid and vapour 易燃液体和蒸气
  • H361 Suspected of damaging fertility or the unborn child 怀疑对生育能力或未出生婴儿造成伤害
  • H413 Maycauselonglastingharmfuleffectstoaquaticlife 可能对水生生物造成长期持续有害影响。
Personal Protective Equipment Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Hazard Codes 3
RTECSGZ4397000
Precautionary statements
  • P201 Obtain special instructions before use. 使用前获取专门指示。
  • P202 Do not handle until all safety precautions have been read and understood. 已阅读并理解所有的安全预防措施之前，切勿操作。
  • P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. 远离热源/火花/明火/热的表面。——禁止吸烟。
  • P233 Keep container tightly closed. ?保持容器密闭。
  • P240 Ground/bond container and receiving equipment. 与地面接触/连接集装箱和接受设备。
  • P241+P242+P243
  • P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
  • P264 Wash hands thoroughly after handling. 处理后要彻底洗净双手。
  • P270 Do not eat, drink or smoke when using this product. 使用本产品时不要吃东西，喝水或吸烟。
  • P273 Avoid release to the environment. 避免释放到环境中。
  • P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
  • P281 Use personal protective equipment as required. 使用所需的个人防护装备。
  • P301+P312+P330
  • P302+P352+P312+P361+P364
  • P303+P361+P353
  • P305+P351+P338
  • P308+P313
  • P332+P313
  • P337+P313
  • P370+P378
  • P403+P235
  • P405 Store locked up. 上锁保管。
  • P501 Dispose of contents/container to..… 处理内容物/容器.....
Signal word Warning
UN Number 1992 1993
Risk Statements
  • R10 Flammable 易燃
  • R36/37/38 Irritating to eyes, respiratory system and skin 对眼睛、呼吸系统和皮肤有刺激性
  • R53 May cause long-term adverse effects in the aquatic environment 对水生环境有长期的有害作用
  • R62 Possible risk of impaired fertility 有削弱生殖能力的危险
Safety Statements
  • S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后，立即用大量水冲洗并征求医生意见；
  • S36/37 Wear suitable protective clothing and gloves 穿戴适当的防护服和手套；
  • S36/37/39 Wear suitable protective clothing, gloves and eye/face protection 穿戴适当的防护服、手套和眼睛/面保护；
  • S46 If swallowed, seek medical advice immediately and show this container or label 食入时，立即求医并出示容器/标签；
  • S51 Use only in well-ventilated areas 仅在通风良好的场所使用；
  • S61 Avoid release to the environment. Refer to special instructions/safety data sheet 避免释放到环境中，参考特别指示/安全收据说明书；
Storage condition 2-8°C {LY} 2-8°C Moisture Sensitive {} {LY} 2-8°C {} {} {LY} 2-8°C {} {} {} {LY} 2-8°C {} {} {} {} {LY} 2-8°C {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} { {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} 2-8°C {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {
Packing GroupIII
Hazard Class3/6.1 
TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 48 gm/m3/8H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NTIS** National Technical Information Service.  (Springfield, VA 22161)
   Formerly U.S. Clearinghouse for Scientific & Technical Information.
   Volume(issue)/page/year: OTS0538262

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 1770 mg/kg
TOXIC EFFECTS :
   Behavioral - tremor
   Gastrointestinal - changes in structure or function of salivary glands
   Liver - other changes
REFERENCE :
   NTIS** National Technical Information Service.  (Springfield, VA 22161)
   Formerly U.S. Clearinghouse for Scientific & Technical Information.
   Volume(issue)/page/year: OTS0538262

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 1540 mg/kg
TOXIC EFFECTS :
   Behavioral - tremor
REFERENCE :
   NTIS** National Technical Information Service.  (Springfield, VA 22161)
   Formerly U.S. Clearinghouse for Scientific & Technical Information.
   Volume(issue)/page/year: OTS0538262

TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 794 uL/kg
TOXIC EFFECTS :
   Kidney, Ureter, Bladder - hematuria
REFERENCE :
   NTIS** National Technical Information Service.  (Springfield, VA 22161)
   Formerly U.S. Clearinghouse for Scientific & Technical Information.
   Volume(issue)/page/year: OTS0538262

其他信息

  • 用途二:用作制备硅油中间体，也用于无线电零件的绝缘、防潮等
  • 用途四:该品为硅油，硅橡胶的中间体。
  • Sigma Aldrich:556-67-2(sigmaaldrich)
  • Alfa Aesar:八甲基环四硅氧烷,98% Octamethylcyclotetrasiloxane, 98%(556-67-2)
  • 八甲基环四硅氧烷价格(试剂级):更新日期 产品编号 产品名称 包装 价格 2014/06/02 O0142 八甲基环四硅氧烷 Octamethylcyclotetrasiloxane 500ML 1780元 2014/06/02 O0142 八甲基环四硅氧烷 Octamethylcyclotetrasiloxane 25ML 334元 2010/06/21 216470250 八甲基环四硅氧烷 Octamethylcyclotetrasiloxane 98% 25 GR 278元
  • 方法一:将二甲基二氯硅烷滴加入水中，温度维持在30-40℃，分层，放去酸水，油状物用氢氧化钠溶液水解，将水解物和0.5%-2%氢氧化钾加入裂解釜内，于120-140℃、99.8kPa真空度下进行裂解。裂解物进行分馏，收集173-176℃馏分而得八甲基环四氧硅烷。
  • 图谱信息:八甲基环四硅氧烷(556-67-2)红外图谱(IR2) 八甲基环四硅氧烷(556-67-2)红外图谱(IR1) 八甲基环四硅氧烷(556-67-2)核磁图( 1 HNMR) 八甲基环四硅氧烷(556-67-2)核磁图( 13 CNMR) 八甲基环四硅氧烷(556-67-2)质谱(MS)
  • 蒸气密度:1 (vs air)
  • 上游原料:二氯二甲基硅烷 --> 水解物
  • 用途三:用于制造高抗撕硅橡胶制品，也用于合成其他高分子化合物
  • TCI Shanghai:八甲基环四硅氧烷 Octamethylcyclotetrasiloxane,>;98.0%(GC)(556-67-2)
  • 下游产品:硅油 --> 甲基苯基二甲氧基硅烷 --> 有机硅柔软剂 RS --> 氨基硅油 --> 聚二甲基硅氧烷 --> 107室温硫化硅橡胶 --> 羟基硅油乳液 --> 聚二甲基硅氧烷 --> 有机硅防水剂 --> α-氢-ω-羟基-聚二甲基硅氧烷 --> 高温硫化混炼硅橡胶 --> 聚醚改性硅油
  • 用途一:用作有机硅的原料，也用在电子工业
  • Acros Organics:八甲基环四硅氧烷 Octamethylcyclotetrasiloxane, 98%(556-67-2)
  • 敏感性:Moisture Sensitive
  • MOL 文件:556-67-2.mol
  • TSCA:Yes

系列性分类

  1. Chemical Synthesis 化学合成
  2. Organometallic Reagents 金属有机试剂
  3. Organosilicon 有机硅
  4. Siloxanes - Organosilicon
  1. Chemical Synthesis 化学合成
  2. Organometallic Reagents 金属有机试剂
  3. Organosilicon 有机硅
  4. Siloxanes - Organosilicon
  1. Materials Science 材料科学
  2. Micro/NanoElectronics - Materials Science
  3. Self Assembly & Contact Printing - Micro/NanoElectronics
  4. Self-Assembly Materials - Self Assembly & Contact Printing
  5. Silanes - Self-Assembly Materials
  1. Chemical Synthesis 化学合成
  2. Organometallic Reagents 金属有机试剂
  3. Organosilicon 有机硅
  4. Silanes 硅烷
  1. Chemical Synthesis 化学合成
  2. Organometallic Reagents 金属有机试剂
  3. Organosilicon 有机硅
  4. Silicates

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