溴化硒(IV)

溴化硒(IV) 基本信息
CAS号 7789-65-3 分子式 Br4Se
分子量 398.57600 精确质量  395.59000
PSA  0.00000 LogP  3.00160

基本信息 展开↓

CAS号:
7789-65-3
3D弹球模型:
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分子式:
Br4Se
分子量:
398.57600
中文名称:
溴化硒(IV)
英文名称:
Selenium tetrabromide
中文别名:
溴化硒(IV);
四溴化硒;
溴硒(IV);
溴化硒(IV), 99+%
英文别名:
Selenium tetrabromide;
SELENIUM(IV) BROMIDE;
tetrabromo-|E4-selane;
tetrabromo-$l^{4}-selane;
Selentetrabromid
精确分子量/精确质量:
395.59000
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:
MFCD00049766
EINECS:
232-181-9
PubChem:
24864935
InChI:
The Key: VTQZBGAODFEJOW-UHFFFAOYSA-N

生产制备方法及用途展开↓

合成制备方法


1.将过量的溴与硒反应可生成四溴化硒。反应在一装有滴液漏斗和气体导出管的圆底烧瓶中进行,气体导出管与装有P2O5加玻璃棉的干燥管相连接。在烧瓶中加入50mL干燥的CS2,加20g硒粉使其悬浮在CS2中,从滴液漏斗中慢慢地加入100g纯溴。溴与硒反应即有棕色的SeBr4微晶析出。溴加完后,将滴液漏斗拆下,换上气体导入管,并通入干燥的空气,将多余的溴和CS2驱逐掉。瓶中的剩余物即为SeBr4,将其迅速转移至磨口瓶中密封保存。

用途


电子元件材料。

物化性质展开↓

熔点:
70-80ºC (dec.)(lit.)
存储条件/存储方法:

干性的保护气体下处置,

保持贮藏器密封

放入紧密的贮藏器内,储存在阴凉,干燥的地方

稳定性相关:

如果遵照规格使用和储存则不会分解

避免接触酸,水分/潮湿。有与Se2Br2相似的不愉快的气味,有吸湿性,在潮湿空气中分解为溴、Se2Br2和硒。加热时发生分解,在水中分解为H2SeO3和HBr。可溶于CS2、CHCl3、CCl4中。

其它信息:

1.      性状:黄色或红棕色结晶性粉末。有不愉快气味。

安全信息展开↓

包装等级:
II
危险类别码:
23/24/25-34-40
安全说明:
22-26-27-36/37/39-45
安全标志:
S22:不要吸入粉尘。
S26:万一接触眼睛,立即使用大量清水冲洗并送医诊治。
S27:立刻除去所有污染衣物。
S45:出现意外或者感到不适,立刻到医生那里寻求帮助(最好带去产品容器标签)。
:

合成路线查看所有的合成路线

  • 7782-49-2

  • +

  • 7726-95-6

    溴素

  • 7789-65-3

    溴化硒(IV)

  • +

  • 22987-45-7

    bromo selenohypobromite

  • 5951-19-9

    selanylidenemethanethione

  • +

  • 7726-95-6

    溴素

  • 7789-65-3

    溴化硒(IV)

  • +

  • 558-13-4

    四溴化碳

  • 7782-49-2

  • +

  • 7789-33-5

    一溴化碘

  • 7789-65-3

    溴化硒(IV)

毒理性展开↓

毒理学数据:

剧毒。

生态数据:

对水是极其危害的,若无政府许可,勿将材料排入周围环境

MSDS 展开↓


Section 1: Product Identification
   Chemical Name:       Selenium (IV) bromide, 99%    
   CAS Registry Number:       7789-65-3    
   Formula:       SeBr4    
   EINECS Number:       232-181-9    
   Chemical Family:       metal halide    
   Synonym:       Selenium tetrabromide    

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title Compound       7789-65-3       100%       0.2mg/m3 (as Se)       0.2mg/m3 (as Se)    

Section 3: Hazards Identification
   Material hydrolyzes in contact with moisture releasing corrosive hydrogen bromide fumes. Harmful by
   Emergency Overview:
   inhalation, in contact with skin and if swallowed.
   Primary Routes of Exposure:       Ingestion, inhalation, skin, eyes    
   Eye Contact:       Liquid and vapors will cause burns to the eyes. May cause blindness.    
   Skin Contact:       Corrosive to skin. Contact can lead to redness, pain, blistering, ulceration, and scar formation.    
   Inhalation of choking fumes will result in chemical burns of the respiratory tract, chemical pneumonitis and
   Inhalation:
   pulmonary edema.
   Causes burns to the gastrointestinal system. Selenium compounds may lead to nausea, vomiting, and bloody
   Ingestion:
   diarrhea.
   Material is extremely destructive to all body tissues. Selenium compounds cause nausea, vomiting, bloody
   Acute Health Affects:
   diarrhea, weakness, chills, headache, and delayed pulmonary edema.
   Prolonged exposure to selenium compounds may cause dermatitis, diarrhea, liver damage, nervous disorders,
   Chronic Health Affects:
   lameness, and loss of vitality.
   NTP:       No    
   IARC:       No    
   OSHA:       No    

SECTION 4: First Aid Measures
   Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need
   Eye Exposure:
   assistance in keeping their eye lids open. Get immediate medical attention.
   Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if
   Skin Exposure:
   irritation persists.
   Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty
   Inhalation:
   in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
   Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce
   Ingestion:
   vomiting only if directed by medical personnel.

SECTION 5: Fire Fighting Measures
   Flash Point:       not applicable    
   Autoignition Temperature:       none    
   Explosion Limits:       none    
   Extinguishing Medium:       none required    
   If involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self-contained
   Special Fire Fighting Procedures:
   breathing apparatus and full protective clothing.
   Hazardous Combustion and       If involved in a fire this material may emit corrosive hydrogen bromide fumes.    
   Decomposion Products:
   Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.

SECTION 6: Accidental Release Measures
   Small spills can be mixed with powdered sodium bicarbonate, lime, or calcium carbonate and swept up.
   Spill and Leak Procedures:       Spillage in areas not adequately ventilated may require an evacuation of area. Emergency response teams    
   will require self-contained breathing apparatus.

SECTION 7: Handling and Storage
   Store material in a tightly sealed bottle away from moisture. If possible, handle material in an efficient fume
   Handling and Storage:
   hood. Exposure to the atmosphere may lead to degradation of the product.

SECTION 8: Exposure Controls and Personal Protection
   Eye Protection:       Always wear approved safety glasses when handling a chemical substance in the laboratory.    
   Skin Protection:       Wear protective clothing and gloves. Consult with glove manufacturer to determine proper type of glove.    
   Ventilation:       If possible, handle the material in an efficient fume hood.    
   In the absence of adequate ventilation a respirator should be worn. The use of a respiratory requires a
   Respirator:
   Respirator Protection Program to be in compliance with 29 CFR 1910.134.
   Ventilation:       If possible, handle the material in an efficient fume hood.    
   Additional Protection:       Protective work clothing.    

SECTION 9: Physical and Chemical Properties
   Color and Form:       reddish black xtl.    
   Molecular Weight:       398.6    
   Melting Point:       75° dec.    
   Boiling Point:       no data    
   Vapor Pressure:       no data    
   Specific Gravity:       no data    
   Odor:       Pungent odor.    
   Solubility in Water:       reacts with water    

SECTION 10: Stability and Reactivity
   Stability:       moisture sensitive    
   Hazardous Polymerization:       no hazardous polymerization    
   Conditions to Avoid:       contact with moisture    
   Incompatibility:       Water, alcohols, strong bases, and active metals.    
   Decomposition Products:       with moisture: hydrogen bromide and hydrobromic acid.    

SECTION 11: Toxicological Information
   RTECS Data:       No information available in the RTECS files.    
   Carcinogenic Effects:       no data    
   Mutagenic Effects:       no data    
   Tetratogenic Effects:       no data    

SECTION 12: Ecological Information
   Ecological Information:       No information available    

SECTION 13: Disposal Considerations
   Disposal:       Dispose of according to local, state and federal regulations.    

SECTION 14: Transportation
   Shipping Name (CFR):       Toxic solid, Corrosive, Inorganic, N.O.S.    
   Hazard Class (CFR):       6.1    
   Additional Hazard Class (CFR):       8    
   Packaging Group (CFR):       II    
   UN ID Number (CFR):       UN# 3290    
   Shipping Name (IATA):       Toxic solid, Corrosive, Inorganic, N.O.S.    
   Hazard Class (IATA):       6.1    
   Additional Hazard Class (IATA):       8    
   Packaging Group (IATA):       II    
   UN ID Number (IATA):       UN# 3290    

SECTION 15: Regulatory Information
   TSCA:       Listed in the TSCA inventory.    
   SARA (Title 313):       Title compound not listed.    
   Second Ingredient:       none    


SECTION 16 - ADDITIONAL INFORMATION
N/A

分子结构与计算化学数据展开↓

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:0

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:5

8.表面电荷:0

9.复杂度:19.1

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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  • 7726-95-6

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  • 5951-19-9

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