1,3-二溴丙酮

  • 基本信息
  • 制备方法及用途
  • 物化性质
  • 安全信息
  • 毒理性
  • MSDS
  • 海关数据
  • 结构与计算化学
  • 上游产品
  • 下游产品

1,3-二溴丙酮 基本信息

中文名称:
1,3-二溴丙酮 
中文别名:
1,3-二溴丙酮;
1,3-二溴-2-丙酮;
1,3-二溴乙酮 
英文名称:
1,3-dibromo-2-propanone
英文别名:
1,3-Dibromoacetone;
1,3-dibromopropan-2-one 
CAS No.:
816-39-7
分 子 式:
C3H4Br2O
分 子 量:
215.87
精确分子量:
213.86300
PSA:
17.07000
MDL:
MFCD00013540
EINECS:
212-430-8
BRN:
1740389
InChI:
InChI=1/C3H4Br2O/c1-2(6)3(4)5/h3H,1H3
危险品标志:
Xi
风险术语:
R36/37/38
安全术语:
S26S37/S39
分子结构式:
SDS:
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1,3-二溴丙酮 制备方法及用途

制备方法

1,3-二溴丙酮的合成有丙酮法和丙三醇法。(1)丙酮直接溴化而得1,3-二溴丙酮。在2L烧瓶中,加入99.0g(1.71mol)丙酮、98.2g(1.64mol)乙酸和400g水;搅拌下,再通过滴液漏斗加入475g(2.97mol)溴,通过调节漏斗中的压力来控制溴滴加速度。反应温度60℃,加料时间约10h。冷却混合液至室温,48h后分出下层液,用MgSO4干燥,减压蒸馏,得97.6g(30.4%)1,3-二溴丙酮。须注意的是处理水层时要特别小心,因其中溶有HBr。(2)由丙三醇经溴化、氧化而得1,3-二溴丙酮。将1000g(10.8mol)丙三醇、25g(1.0mol)红磷和1869g(23.4mol)溴加入烧瓶中,反应即得1,3-二溴丙醇,产率59%。然后加入重铬酸钾和硫酸进行氧化反应,得到1,3-二溴丙酮,产率67%。此过程最大的优点是异构体少,而丙酮直接溴化不可避免地会遇到生成异构体的问题。

合成制备方法

1,3-二溴丙酮的合成有丙酮法和丙三醇法。                                                                                                       (1)丙酮直接溴化而得1,3-二溴丙酮。在2L烧瓶中,加入99.0g(1.71mol)丙酮、98.2g(1.64mol)乙酸和400g水;搅拌下,再通过滴液漏斗加入475g(2.97mol)溴,通过调节漏斗中的压力来控制溴滴加速度。反应温
度60℃,加料时间约10h。冷却混合液至室温,48h后分出下层液,用MgSO4干燥,减压蒸馏,得97.6g(30.4%)1,3-二溴丙酮。须注意的是处理水层时要特别小心,因其中溶有HBr。                                                           (2)由丙三醇经溴化、氧化而得1,3-二溴丙酮。
将1000g(10.8mol)丙三醇、25g(1.0mol)红磷和1869g(23.4mol)溴加入烧瓶中,反应即得1,3-二溴丙醇,产率59%。然后加入重铬酸钾和硫酸进行氧化反应,得到1,3-二溴丙酮,产率67%。此过程最大的优点是异构体少,而丙酮直接溴化不可避免地会遇到生成异构体的问题。

用途简介

有机合成中间体

用途

有机合成中间体

1,3-二溴丙酮 物化性质

外观与性状:
黄色至暗棕色液体
密度:
2.125 g/cm3
沸点:
95 °C (20 mmHg)
闪点:
97-98°C/21mm
折射率:
1.5470
存储条件/存储方法:

保持容器密封,储存在阴凉,干燥的地方

稳定性相关:

常温常压下稳定,避免氧化物 酸接触

其它信息:

1.       性状:未确定

2.       密度(g/mL,25/4℃):未确定

3.       相对蒸汽密度(g/mL,空气=1):未确定

4.       熔点(ºC):未确定

5.       沸点(ºC,常压):未确定

6.       沸点(ºC, 20 mmHg):95 °C

7.       折射率:1.5470

8.       闪点(ºC 21mmHg):97-98°C

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(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:未确定

1,3-二溴丙酮 安全信息

海关代码:
2914700090
危险类别码:
R36/37/38
安全说明:
S37/39-S26
安全标志:
S26:万一接触眼睛,立即使用大量清水冲洗并送医诊治。
:
危险标志:
Xi: Irritant;

1,3-二溴丙酮 毒理性

生态数据:

对水是稍微有害的,不要让未稀释或大量的产品接触地下水,水道或者污水系统,若无政府许可,勿将材料排入周围环境

1,3-二溴丙酮 MSDS

Name: 1 3-Dibromo-2-Propanone Material Safety Data Sheet
Synonym: None
CAS: 816-39-7
Section 1 - Chemical Product   MSDS Name:1 3-Dibromo-2-Propanone Material Safety Data Sheet
Synonym:None

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
816-39-7 2-Propanone, 1,3-Dibromo- ca 100 212-430-8
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. The toxicological properties of this material have not been fully investigated.
Skin:
May cause skin irritation. The toxicological properties of this material have not been fully investigated.
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. Use water spray to keep fire-exposed containers cool. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. Containers may explode when heated.
Extinguishing Media:
Use agent most appropriate to extinguish fire. Cool containers with flooding quantities of water until well after fire is out. 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:
Avoid runoff into storm sewers and ditches which lead to waterways.
Clean up spills immediately, observing precautions in the Protective Equipment section. Absorb spill using an absorbent, non-combustible material such as earth, sand, or vermiculite. Do not use combustible materials such as sawdust. 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 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:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 816-39-7: 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: Liquid
Color: clear almost colorless
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 95 deg C @ 20.00mm Hg
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C3H4Br2O
Molecular Weight: 215.87

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, excess heat, strong oxidants.
Incompatibilities with Other Materials:
Oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, hydrogen bromide, bromine fumes.
Hazardous Polymerization: Has not been reported

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 816-39-7 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
2-Propanone, 1,3-Dibromo- - 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# 816-39-7: No information available.
Canada
CAS# 816-39-7 is listed on Canada's NDSL List.
CAS# 816-39-7 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 816-39-7 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

1,3-二溴丙酮 海关数据

中国海关编码:2914700090

概述:
2914700090 其他酮及醌的卤化、磺化衍生物(包括硝化和亚硝化衍生物). 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:5.5% 普通关税:30.0%
申报要素:
品名, 成分含量, 用途, 丙酮报明包装
摘要/Summary:
HS: 2914700090 halogenated, sulphonated, nitrated or nitrosated derivatives of ketones and quinones, whether or not with other oxygen function Tax rebate rate:9.0% Supervision conditions:none VAT:17.0% MFN tariff:5.5% General tariff:30.0%

1,3-二溴丙酮 分子结构与计算化学数据

分子结构数据

1、   摩尔折射率:31.44

2、   摩尔体积(cm3/mol):101.5

3、   等张比容(90.2K):260.8

4、   表面张力(dyne/cm):43.5

5、   介电常数:

6、   偶极距(10-24cm3):

7、 极化率:12.46

计算化学数据

1.疏水参数计算参考值(XlogP):1.5

2.氢键供体数量:0

3.氢键受体数量:1

4.可旋转化学键数量:2

5.互变异构体数量:2

6.拓扑分子极性表面积17.1

7.重原子数量:6

8.表面电荷:0

9.复杂度:46.8

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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