四碘化碲

四碘化碲 基本信息
CAS号 7790-48-9 分子式 I4Te
分子量 635.09602 精确质量  637.52414
PSA  0.00000 LogP  3.16200

基本信息 展开↓

CAS号:
7790-48-9
3D弹球模型:
立即前往扯扯看
分子式:
I4Te
分子量:
635.09602
中文名称:
四碘化碲
英文名称:
Tellurium iodide (TeI4), (T-4)-
中文别名:
四碘化碲;
碘化碲;
碘化碲(IV)
英文别名:
Tellurium iodide (TeI4), (T-4)-;
Tellurium iodide (TeI4) (6CI,7CI,8CI);
Tellurium iodide (Te0.2I0.8);
Tellurium tetraiodide
精确分子量/精确质量:
637.52414
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:
MFCD00049578
EINECS:
232-210-5
InChI:
InChI=1/4HI.2H2Te/h4*1H;2*1H2/q;;;;2*+2/p-4

生产制备方法及用途展开↓

制备方法


1.用原碲酸与氢碘酸反应即可生成四碘化碲。在室温下将高浓度的原碲酸Te(OH)6与稍稍过量的浓氢碘酸(相对密度为2 00)混合,即刻有灰色的四碘化碲沉淀出来。用玻璃砂芯漏斗吸滤,并尽量将其压干。常温下将母液蒸发浓缩,还可以得到相当多的产物。将所得的结晶产物干燥后,用纯的四氯化碳洗涤以除去其中的碘,洗涤时可将结晶在四氯化碳中弄碎,并时时更换洗涤液体,直至洗涤液不再有颜色为止。最后干燥并密封保存。

合成制备方法


1.用原碲酸与氢碘酸反应即可生成四碘化碲。在室温下将高浓度的原碲酸Te(OH)6与稍稍过量的浓氢碘酸(相对密度为200)混合,即刻有灰色的四碘化碲沉淀出来。用玻璃砂芯漏斗吸滤,并尽量将其压干。常温下将母液蒸发浓缩,还可以得到相当多的产物。将所得的结晶产物干燥后,用纯的四氯化碳洗涤以除去其中的碘,洗涤时可将结晶在四氯化碳中弄碎,并时时更换洗涤液体,直至洗涤液不再有颜色为止。最后干燥并密封保存。

用途简介


实验用

用途


实验用

物化性质展开↓

密度:
5.05 g/mL at 25 °C(lit.)
熔点:
280°C
存储条件/存储方法:

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

避免接触水分/潮湿。常温下即使在潮湿空气中也稳定,但加热时会分解出碘。在封管中的熔点为280℃,常压下当温度高于118℃时即开始升华并部分分解。可溶于氢碘酸,稍溶于丙酮和乙醇。在冷水中微微水解,加热则水解迅速。

其它信息:

1.      性状:青铜灰色结晶。在潮解空气中稳定。

2.      密度(g/mL 25ºC):5.05

3.      相对蒸汽密度(g/mL,空气=1):未确定

4.      熔点(ºC):280

5.      沸点(ºC,常压):未确定

6.      沸点(ºC,5.2kPa):未确定

7.      折射率(n20/D):未确定

8.      闪点(ºC,):未确定

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(25℃):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(mg/mL) :溶于氢碘酸、碱液和氨水,微溶于丙酮、乙醇和戊醇,几乎不溶于四氯化碳、二硫化碳、酯类和乙酸。

安全信息展开↓

包装等级:
II
风险类别:
8
WGK_Germany:
3
德国有关水污染物质的分类清单
危险类别码:
20/21/22-34
安全说明:
S22-S26-S27-S36/37/39-S45
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)。
:
危险标志:
C

合成路线查看所有的合成路线

  • 10034-85-2

    氢碘酸

  • +

  • 7803-68-1

    碲酸

  • 82868-68-6

    tellurium(VI)-iodide

  • +

  • 7553-56-2

  • 7446-07-3

    二氧化碲

  • +

  • 7553-56-2

  • 7790-48-9

    四碘化碲

  • 10034-85-2

    氢碘酸

  • +

  • 13520-55-3

    orthotelluric acid

  • 7790-48-9

    四碘化碲

毒理性展开↓

毒理学数据:

有腐蚀性

生态数据:

对水是稍微危害的,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:       Tellurium (IV) iodide (99.9%-Te)    
   CAS Registry Number:       7790-48-9    
   Formula:       TeI4    
   EINECS Number:       232-210-5    
   Chemical Family:       metal halide    
   Synonym:       Tellurium tetraiodide.    

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title Compound       7790-48-9       100%       0.1mg/m3 (as Te)       0.1mg/m3 (as Te)    

Section 3: Hazards Identification
   Causes severe skin, eye and respiratory tract irritation with cough, breathing difficulty, nausea and vomiting.
   Emergency Overview:
   Prolonged exposure may produce a mild toxic syndrome known as iodism.
   Primary Routes of Exposure:       Contact with skin and eyes. Inhalation of dust.    
   Eye Contact:       Causes redness, pain, and blurred vision. Splashes from solutions may cause eye damage.    
   Skin Contact:       Causes severe irritation, ulcerations, itching, pimples, boils, hives, blisters and skin burns.    
   Inhalation:       Causes irritation to the respiratory tract. Symptoms may include coughing and shortness of breath.    
   Ingestion:       May cause severe irritation to the gastrointestinal tract with abdominal pain, nausea, and vomiting.    
   May cause coughing, nausea, and vomiting. Skin and eye contact will cause severe irritation. Tellurium may
   Acute Health Affects:
   cause garlic odor of breath, metallic taste, sleepiness, headache and nausea.
   Chronic ingestion of iodides may produce iodism. Symptoms include skin rash, running nose, headache and
   Chronic Health Affects:       irritation of mucous membranes. Prolonged exposure to tellurium may cause drowsiness and loss of appetite.    
   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. Material is non-flammable.    
   Special Fire Fighting Procedures:       No special fire fighting procedures required.    
   Hazardous Combustion and       none    
   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. Avoid
   Spill and Leak Procedures:
   raising dust.

SECTION 7: Handling and Storage
   Store solid in a tightly sealed container away from moisture. Handle in a fume hood under a dry atmosphere of
   Handling and Storage:
   air or nitrogen. Prolonged exposure to the atmosphere may degrade 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 the proper type of glove.    
   Ventilation:       Material may form a fine dust. If possible, handle the material in an efficient fume hood.    
   If in form of fine dust and ventilation is not available a respirator should be worn. The use of respirators
   Respirator:
   requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134.
   Ventilation:       Material may form a fine dust. If possible, handle the material in an efficient fume hood.    
   Additional Protection:       No additional protection required.    

SECTION 9: Physical and Chemical Properties
   Color and Form:       -4 mesh gran.    
   Molecular Weight:       635.22    
   Melting Point:       280°    
   Boiling Point:       no data    
   Vapor Pressure:       no data    
   Specific Gravity:       5.403    
   Odor:       none    
   Solubility in Water:       slightly soluble    

SECTION 10: Stability and Reactivity
   Stability:       moisture sensitive    
   Hazardous Polymerization:       no hazardous polymerization    
   Conditions to Avoid:       contact with moisture    
   Incompatibility:       active metals    
   Decomposition Products:       none    

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):       Non-hazardous    
   Hazard Class (CFR):       NA    
   Additional Hazard Class (CFR):       NA    
   Packaging Group (CFR):       NA    
   UN ID Number (CFR):       NA    
   Shipping Name (IATA):       Non-hazardous    
   Hazard Class (IATA):       NA    
   Additional Hazard Class (IATA):       NA    
   Packaging Group (IATA):       NA    
   UN ID Number (IATA):       NA    

SECTION 15: Regulatory Information
   TSCA:       Listed in the TSCA inventory    
   SARA (Title 313):       Not reportable under SARA 313.    
   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

上下游相关产品

上游产品

更多
  • 7446-07-3

    二氧化碲

  • 10034-85-2

    氢碘酸

  • 7803-68-1

    碲酸

  • 10049-23-7

    亚碲酸

  • 7681-11-0

    碘化钾

下游产品

更多
  • 7446-07-3

    二氧化碲

  • 7782-68-5

    碘酸

  • 10034-85-2

    氢碘酸

  • 7784-45-4

    三碘化砷

  • 7553-56-2

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