二水碲酸

二水碲酸 基本信息
CAS号 13451-14-4 分子式 H2O4Te.2H2O
分子量 229.52018 精确质量  231.92267
PSA  93.06000 LogP  -1.10060

基本信息 展开↓

CAS号:
13451-14-4
分子式:
H2O4Te.2H2O
分子量:
229.52018
中文名称:
二水碲酸
英文名称:
Telluric acid (H2TeO4), dihydrate (8CI)
中文别名:
二水碲酸;
碲酸二水
英文别名:
Telluric acid (H2TeO4), dihydrate (8CI)
精确分子量/精确质量:
231.92267
极性分子表面积/PSA:
93.06000
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:
MFCD00150387
EINECS:
232-267-6
PubChem:
24888615

生产制备方法及用途展开↓

制备方法


由碲或二氧化碲被双氧水或三氧化铬氧化制备。

合成制备方法


由碲或二氧化碲被双氧水或三氧化铬氧化制备。

用途简介


定量分析中分离溴化物和氯化物

用途


定量分析中分离溴化物和氯化物

物化性质展开↓

密度:
3,071 g/cm3
熔点:
136°C
沸点:
160°C
存储条件/存储方法:

常温密闭,阴凉通风干燥

稳定性相关:

常温常压下稳定

避免的物料 酸

其它信息:

1.       性状:白色晶体

2.       密度(g/mL,25/4):3.071

3.       相对蒸汽密度(g/mL,空气=1):未确定

4.       熔点(ºC):136

5.       沸点(ºC,常压):160

6.       沸点(ºC,5.2kPa):未确定

7.       折射率未确定

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):不适用的

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:可溶解的

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
安全说明:
S22-S36/37/39-S38
RTECS号:
WY2350000
安全标志:
S22:不要吸入粉尘。
S38:在通风不良的场所,佩戴合适的呼吸装置。
:
危险标志:
Xn: Harmful;

毒理性展开↓

毒理学数据:

1、急性毒性:小鼠口经LD5056mg/kg;主要的刺激性影响:

在皮肤上面:在皮肤和粘膜上造成腐蚀性影响,刺激皮肤和粘膜;

在眼睛上面:强烈的腐蚀性影响,刺激的影响;没有已知的敏化影响。

生态数据:

通常对水体是稍微有害的,不要将未稀释或大量产品接触地下水,水道或污水系统,未经政府许可勿将材料排入周围环境。

MSDS 展开↓


Section 1: Product Identification
   Chemical Name:       Telluric acid (99.5%-Te)    
   CAS Registry Number:       13451-14-4    
   Formula:       H2TeO4.2H2O    
   EINECS Number:       none    
   Chemical Family:       chalcogen oxide    
   Synonym:       Orthotelluric acid, Telluric(VI) acid, Tellurium hydroxide    

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title compound       13451-14-4       100%       .1mg(Te)/m3       .1mg(Te)/m3    

Section 3: Hazards Identification
   Emergency Overview:       Harmful by inhalation and if swallowed. irritating to skin, eyes and respiratory tract.    
   Primary Routes of Exposure:       Ingestion, inhalation, skin, eyes.    
   Eye Contact:       Causes mild to moderate irritation of the eyes.    
   Skin Contact:       Causes mild irritation of the skin.    
   Inhalation:       Harmful by inhalation. irritating to skin, eyes and respiratory tract.    
   Ingestion:       Harmful if swallowed.    
   Acute Health Affects:       harmful by inhalation and if swallowed. irritating to skin, eyes and respiratory tract.    
   Chronic Health Affects:       No information available on long-term chronic effects.    
   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 in
   Inhalation:
   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:       not applicable    
   Explosion Limits:       not applicable    
   Extinguishing Medium:       none required    
   If this product is involved in a fire, firefighters should be equipped with NIOSH approved positive pressure
   Special Fire Fighting Procedures:
   self-contained breathing apparatus.
   Hazardous Combustion and       If involved in a fire this material may produce toxic fumes of tellurium oxide.    
   Decomposion Products:
   Unusual Fire or Explosion Hazards: No unusual fire or explosion hazard.

SECTION 6: Accidental Release Measures
   Spill and Leak Procedures:       Small spills can be mixed with vermiculite or sodium carbonate and swept up.    

SECTION 7: Handling and Storage
   Store in a tightly sealed container. When handling, avoid forming airborne dust. Use good housekeeping
   Handling and Storage:
   practices to avoid contamination of work area.

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 appropriate chemical resistant gloves and protective clothing.    
   Ventilation:       To minimize exposure handle the material in an efficient fume hood.    
   If ventilation is not available a respirator should be worn. The use of respirators requires a Respiratory
   Respirator:
   Protection Program to be in compliance with 29 CFR 1910.134.
   Ventilation:       To minimize exposure handle the material in an efficient fume hood.    
   Additional Protection:       No additional protection required.    

SECTION 9: Physical and Chemical Properties
   Color and Form:       white powder    
   Molecular Weight:       193.61(229.64)    
   Melting Point:       136°    
   Boiling Point:       160°C dec.    
   Vapor Pressure:       no data    
   Specific Gravity:       3.071    
   Odor:       none    
   Solubility in Water:       soluble    

SECTION 10: Stability and Reactivity
   Stability:       air and moisture stable    
   Hazardous Polymerization:       no hazardous polymerization    
   Conditions to Avoid:       none    
   Incompatibility:       strong bases    
   Decomposition Products:       tellurium oxide    

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, Inorganic, N.O.S.    
   Hazard Class (CFR):       6.1    
   Additional Hazard Class (CFR):       NA    
   Packaging Group (CFR):       III    
   UN ID Number (CFR):       UN #3288    
   Shipping Name (IATA):       Toxic Solid, Inorganic, N.O.S.    
   Hazard Class (IATA):       6.1    
   Additional Hazard Class (IATA):       NA    
   Packaging Group (IATA):       III    
   UN ID Number (IATA):       UN #3288    

SECTION 15: Regulatory Information
   TSCA:       Not 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↓

分子结构数据


1、摩尔折射率:无可用的

2、摩尔体积(cm3/mol):无可用的

3、等张比容(90.2K):无可用的

4、表面张力(dyne/cm):无可用的

5、介电常数:无可用的

6、极化率(10-24cm3):无可用的

7、单一同位素质量:231.922661 Da

8、标称质量:232 Da

9、平均质量:229.644 Da

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:2

3.氢键受体数量:4

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74.6

7.重原子数量:5

8.表面电荷:0

9.复杂度:81.3

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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