正二十四烷

正二十四烷 基本信息
CAS号 646-31-1 分子式 C24H50
分子量 338.65400 精确质量  338.39100
PSA  0.00000 LogP  9.60840

基本信息 展开↓

CAS号:
646-31-1
3D弹球模型:
立即前往扯扯看
分子式:
C24H50
分子量:
338.65400
中文名称:
正二十四烷
英文名称:
tetracosane
中文别名:
正二十四烷;
二十四烷
英文别名:
tetracosane;
Tricosane,methyl;
n-Tetracosane;
tetraeicosane;
tetracosan acid
精确分子量/精确质量:
338.39100
极性分子表面积/PSA:
0.00000
油水分配系数/LogP:

LogP值指的是某物质在正辛醇/水两相体系中的分配系数的对数值,反映了物质在油水两相中的分配情况。其中、LogP值越大,说明该物质越亲油;反之,LogP值越小,则说明该物质越亲水。
贝尔斯坦号/MDL:
MFCD00009352
EINECS:
211-474-5
PubChem:
24888852
BRN:
1758462
InChI:
InChI=1/C24H50/c1-3-5-7-9-11-13-15-17-19-21-23-24-22-20-18-16-14-12-10-8-6-4-2/h3-24H2,1-2H3

生产制备方法及用途展开↓

制备方法


用作色谱分析标样及固定液。

合成制备方法


1. 烟草:FC,18,26,56

用途简介


物化性质展开↓

密度:
0.797g/cm3
熔点:
49-52 °C(lit.)
沸点:
391 °C(lit.)
闪点:
>230 °F
折射率:
1.445
存储条件/存储方法:

存放在密封容器内,并放在阴凉,干燥处。储存的地方必须远离氧化剂。

稳定性相关:

1. 远离氧化物。

2. 存在于烤烟烟叶、烟气中。

其它信息:

1.       性状:白色晶体。

2.       密度(g/mL,25/4℃):0.7991

3.       相对蒸汽密度(g/mL,空气=1):未确定

4.       熔点(ºC):49-52

5.       沸点(ºC,常压):391

6.       沸点(ºC,5.2kPa):未确定

7.       折射率 (n20D) :1.4283

8.       闪点(ºC): 194

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(kPa,25ºC):未确定

12.    饱和蒸气压(kPa,60ºC):未确定

13.    燃烧热(KJ/mol):未确定

14.    临界温度(K):526.85 

15.    临界压力(MPa):0.87

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:不能溶于水。

安全信息展开↓

海关代码:
2901100000
WGK_Germany:
3
德国有关水污染物质的分类清单
安全说明:
S24/25
安全标志:
S24/25:防止皮肤和眼睛接触。

合成路线查看所有的合成路线

  • 4292-19-7

    1-碘十二烷

  • ~99%

  • 112-40-3

    正十二烷

  • +

  • 646-31-1

    正二十四烷

  • 143-15-7

    溴代十二烷

  • ~63%

  • 112-53-8

    十二醇

  • +

  • 646-31-1

    正二十四烷

  • 143-15-7

    溴代十二烷

  • ~59%

  • 112-40-3

    正十二烷

  • +

  • 112-41-4

    1-十二烯

化学图谱

  1. 正二十四烷质谱(MS)

  2. 正二十四烷核磁图(13CNMR)

  3. 正二十四烷核磁图(1HNMR)

  4. 正二十四烷红外图谱(IR1)

  5. 正二十四烷红外图谱(IR2)

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毒理性展开↓

生态数据:

通常对水是不危害的,若无政府许可,勿将材料排入周围环境。

MSDS 展开↓

Name: Tetracosane 99% Material Safety Data Sheet
Synonym: None Known
CAS: 646-31-1
Section 1 - Chemical Product   MSDS Name:Tetracosane 99% Material Safety Data Sheet
Synonym:None Known

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
646-31-1 Tetracosane 99% 211-474-5
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
Inhalation:
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
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. 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.
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. Runoff from fire control or dilution water may cause pollution.
Extinguishing Media:
Use agent most appropriate to extinguish fire. 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:
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

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# 646-31-1: 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:
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: Solid
Color: white
Odor: None reported.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 391 deg C @ 760.00mmHg
Freezing/Melting Point: 49.00 - 52.00 deg C
Autoignition Temperature: Not applicable.
Flash Point: > 110 deg C (> 230.00 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: insoluble
Specific Gravity/Density:
Molecular Formula: C24H50
Molecular Weight: 338.65

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, dust generation, excess heat, strong oxidants.
Incompatibilities with Other Materials:
Oxidizing agents.
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# 646-31-1 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Tetracosane - 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: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
S 28A After contact with skin, wash immediately with
plenty of water.
S 37 Wear suitable gloves.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 646-31-1: No information available.
Canada
CAS# 646-31-1 is listed on Canada's DSL List.
CAS# 646-31-1 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 646-31-1 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

海关数据查看详细

中国海关编码:2901100000

概述:
2901100000 饱和无环烃。监管条件:无。增值税率:17.0%。退税率:9.0%。最惠国关税:2.0%。普通关税:30.0%
申报要素:
品名, 成分含量, 用途, 用作气体燃料的应报明包装容器容积, 散装货物应报明
摘要/Summary:
2901100000 saturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

分子结构与计算化学数据展开↓

分子结构数据


1、   摩尔折射率:113.23

2、   摩尔体积(cm3/mol):424.6

3、   等张比容(90.2K):986.9

4、   表面张力(dyne/cm):29.1

5、   介电常数(F/m):2.09

6、   极化率(10-24cm3):44.89

计算化学数据


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:0

4.可旋转化学键数量:21

5.互变异构体数量:无

6.拓扑分子极性表面积0

7.重原子数量:24

8.表面电荷:0

9.复杂度:174

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

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