옥타메틸시클로테트라실록산
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옥타메틸시클로테트라실록산 속성
- 녹는점
- 17-18 °C (lit.)
- 끓는 점
- 175-176 °C (lit.)
- 밀도
- 0.956 g/mL at 25 °C (lit.)
- 증기 밀도
- 1 (vs air)
- 증기압
- 1.32hPa at 25℃
- 굴절률
- n
20/D 1.396(lit.)
- 인화점
- 140 °F
- 저장 조건
- Store below +30°C.
- 용해도
- <0.001g/l 가수분해
- 물리적 상태
- 액체
- Specific Gravity
- 0.956
- 색상
- 무색의
- 폭발한계
- 0.4-11.7%(V)
- 수용성
- 불용성
- 감도
- Moisture Sensitive
- Merck
- 14,6747
- BRN
- 1787074
- Dielectric constant
- 2.4（20℃）
- InChIKey
- HMMGMWAXVFQUOA-UHFFFAOYSA-N
- LogP
- 6.98 at 21.7℃
- CAS 데이터베이스
- 556-67-2(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | Xn | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 53-62-10 | ||
| 안전지침서 | 36/37-46-51-61 | ||
| 유엔번호(UN No.) | UN 1993 3/PG 3 | ||
| WGK 독일 | 1 | ||
| RTECS 번호 | GZ4397000 | ||
| TSCA | Yes | ||
| 위험 등급 | 3 | ||
| 포장분류 | III | ||
| HS 번호 | 29319090 | ||
| 유해 물질 데이터 | 556-67-2(Hazardous Substances Data) | ||
| 독성 | LD50 oral in rat: 1540mg/kg | ||
| 기존화학 물질 | KE-26606 |
옥타메틸시클로테트라실록산 C화학적 특성, 용도, 생산
용도
목욕 기름 발한 억제제에서 사용해, 방취제, 로션, 햇볕에 탐을 면도 제품 및 매니큐어 스킨 크림.화학적 성질
Octamethylcyclotetrasiloxane is also known as D4. It is an odorless, colorless non-oily silicone fluid which has C8H24O4Si4 as chemical formula. It is a cyclic organic silicon substance which can be used as monomer in the production of silicone polymers such as rubber, resins and greases.용도
Octamethylcyclotetrasiloxane is used as a monomer in the production of silicone polymers and as an intermediate in the production of other organosilicon substances.Further it finds its application in electronics, textiles, personal care products and household care products.Polydimethylsiloxane by the Polymerization of Octamethylcyclotetrasiloxane: To a resin flask equipped with a thermometer, stirrer, and reflux eondenser is added 1000 gm of octamethylcyclotetrasiloxane. The siloxane is heated to 165°C, and then 0.14gm of a potassium hydroxide-isopropanol complex (neutral equivalent = 193.5) is added to give a Si : Κ ratio of 4470:1. In 25 min the stirrer begins to stall, and the polymer is now heated for 3(1/2) hr at 150°C to complete polymerization. The resulting polymer has an intrinsic viscosity of 1.5 dl/gm corresponding to a molecular weight of 804,600.
제조 방법
Commercially Octamethylcyclotetrasiloxane is produced from dimethyldichlorosilane. Dimethyldichlorosilane is added dropwise to water, the temperature is maintained at 30-40°C, stratified, the acid water is released, the oily material is hydrolyzed with sodium hydroxide solution, the hydrolysate and 0.5%-2% potassium hydroxide are added to the cracking kettle and cracked at 120-140°C and 99.8 kPa vacuum. The cracked material is fractionated and the fraction is collected at 173-176°C to obtain octamethylcyclotetraoxysilane.정의
ChEBI: Octamethylcyclotetrasiloxane is a cyclosiloxane that is the octamethyl derivative of cyclotetrasiloxane. It is an organosilicon compound and a cyclosiloxane. It derives from a hydride of a cyclotetrasiloxane.일반 설명
Octamethylcyclotetrasiloxane (D4) is a volatile methylsiloxane (VMS) with a relatively low molecular weight. This silicone fluid has a silicon-oxygen bond in a cyclic arrangement and methyl groups are attached to the silicon atom. D4 can be used in the manufacture of silicone based polymers for use in medical devices and personal care products.Safety Profile
A skin irritant. When heated todecomposition it emits acrid smoke and irritating vapors.Purification Methods
The solid exists in two forms, m 16.30o and 17.65o. Dry it over CaH2 and distil it. Further fractionation can be effected by repeated partial freezing and discarding the liquid phase. [Osthoff & Grubb J Am Chem Soc 76 399 1954, Hoffman J Am Chem Soc 75 6313 1953, Beilstein 4 IV 4125.]옥타메틸시클로테트라실록산 준비 용품 및 원자재
원자재
준비 용품
디메티콘
Organosilicon water-proofing agent
Hydroxy silicone oil emulsion
다이메톡시메틸페닐실란
Silicone rubber,high temperature-vulcanized mixing
다이메틸폴리실록산
하이드 록시 말단 폴리 디메틸 실록산
Silicone rubber,methyl RTV 107
silicone softener RS
Amino-modified silicone oil
Silicone oil polyether modified
폴리다이메틸실록산
헥사메틸사이클로트라이실록세인
1,1,3,3-tetramethyldisiloxane-1,3-diol
Tetradecamethylcycloheptasiloxane
DIMETHYLDIFLUOROSILANE
TETRADECAMETHYLHEXASILOXANE
옥타메틸시클로테트라실록산 공급 업체
글로벌( 445)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12469 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8617531190177 |
peter@yan-xi.com | China | 6011 | 58 |
| Henan Bao Enluo International TradeCo.，LTD | +86-17331933971 +86-17331933971 |
deasea125996@gmail.com | China | 2503 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 |
admin@zlchemi.com | China | 2278 | 58 |
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29797 | 60 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 |
info@dakenam.com | China | 15956 | 58 |
| Hangzhou Bayee Chemical Co., Ltd. | 0086-571-86990109 |
rachelhoo@bayeechem.com | China | 104 | 55 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21689 | 55 |
| Shanghai Time Chemicals CO., Ltd. | +86-021-57951555 +8617317452075 |
jack.li@time-chemicals.com | China | 1807 | 55 |
| Nanjing ChemLin Chemical Industry Co., Ltd. | 025-83697070 |
product@chemlin.com.cn | CHINA | 3012 | 60 |
옥타메틸시클로테트라실록산 관련 검색:
다이메틸폴리실록산 1,1,3,3-테트라메틸-1,3-다이실록세인 도데카메틸시클로헥사실록산 헥사메틸사이클로트라이실록세인 시메티콘 (DOW CORNING) 디메티콘 옥타메틸트리실록산 헥사메틸다이사이록산 폴리다이메틸실록산 2,4,6,8- 테트라 비닐 -2,4,6,8- 테트라 메틸 시클로 테트라 실록산 헵타메틸모노페닐시클로테트라실록산 소수성 무정형 발연 실리카 실리카, 무정형 수화 크리스토발라이트 옥타메틸사이클로테트라실록산, 규소와의 반응 생성물 시스-2,2,4,6,6,8-헥사메틸-4,8-디페닐사이클로테트라실록산 1,1,1-트리메틸-N-(트리메틸실릴)실란아민, 암모니아, 옥타메틸사이클로테트라실록산과 실리카와의 반응 생성 옥타메틸시클로테트라실록산