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141-63-9生产厂家

141-63-9价格

141-63-9

141-63-9结构式
141-63-9结构式

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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
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

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

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
海关编码 2934999090
中文概述 2934999090. 其他杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%
申报要素 品名, 成分含量, 用途
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%