五硼酸钾八水合物

  • 基本信息
  • 制备方法及用途
  • 物化性质
  • 毒理性
  • MSDS
  • 结构与计算化学

五硼酸钾八水合物 基本信息

中文名称:
五硼酸钾八水合物 
中文别名:
五硼酸钾八水合物;
五硼酸钾八水 
英文名称:
Potassium pentaborate octahydrate
英文别名:
pentapotassium,pentaborate,octahydrate;
POTASSIUM PENTABORATE OCTAHYDRATE,97;
Potassium pentaborate octahydrate;
Boron potassium oxide (B5KO8),tetrahydrate 
CAS No.:
12229-13-9
分 子 式:
B10K2O16
分 子 量:
586.43
精确分子量:
633.87300
PSA:
419.74000
MDL:
MFCD00213879
EINECS:
234-371-7
风险术语:
60-61
分子结构式:
SDS:
查看

五硼酸钾八水合物 制备方法及用途

合成制备方法

五硼酸钾可以由B2O3∶K2O为3~5的范围内甚至比5还高些的溶液中结晶出来。所得的物质很纯,并可以在热溶液中进行重结晶而不会分解。由于五硼酸钾的溶解度很小,因此它可以用氢氧化钾由五硼酸钠溶液中将钠置换出来而制得。它也可以用硼酸与蚁酸钾反应而制得。

五硼酸钾八水合物 物化性质

熔点:
780ºC
存储条件/存储方法:

常温密闭避光,通风干燥处

稳定性相关:

常温常压下稳定

避免的物料 氧化物。五硼酸钾和五硼酸钠相反,它在冷水中的溶解度很小,此起四硼酸钾来要小得多。例如,在0℃时于100g溶剂中只能溶解1.58g无水盐,这只比过氯酸钾的溶解度稍大一些。在18℃时的溶解度为100g溶液中含2.75g,而在25℃时则含3.41g。

其它信息:

1.       性状:白色粉末

2.       密度(g/mL,20℃):未确定

3.       相对蒸汽密度(g/mL,空气=1):未确定

4.       熔点(ºC):780

5.       沸点(ºC,常压):未确定

6.       沸点(ºC,1mmHg):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):未确定

11.    蒸气压(20ºC):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

 

五硼酸钾八水合物 毒理性

毒理学数据:

主要的刺激性影响:

在皮肤上面:可能引起发炎

在眼睛上面:可能引起发炎

致敏作用:没有已知的敏化现象

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。

五硼酸钾八水合物 MSDS


Section 1: Product Identification
   Chemical Name:       Potassium pentaborate octahydrate, 97%    
   CAS Registry Number:       12229-13-9    
   Formula:       K2B10O16.8H2O    
   EINECS Number:       none    
   Chemical Family:       organic or inorganic borate    
   Synonym:       none    

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title Compound       12229-13-9       100%       10mg/m3       15mg/m3    

Section 3: Hazards Identification
   Dust may be irritating to eyes and respiratory tract. Ingestion of large amounts of soluble borates may cause
   Emergency Overview:
   toxic effects.
   Primary Routes of Exposure:       Ingestion, Inhalation of dust.    
   Eye Contact:       May cause mild to moderate irritation of the eyes    
   Skin Contact:       May cause slight to mild irritation of intact skin. Irritation is greater if broken skin is exposed.    
   Inhalation:       Dust may be irritating to the nose, mucous membranes and respiratory tract.    
   Soluble borates, if ingested in large quantity, may cause twitching of facial muscles, diarrhea, kidney damage,
   Ingestion:
   shock and coma.
   Acute Health Affects:       May be irritating to broken skin, eyes and respiratory tract.    
   Repeated exposure to small amounts has not been associated with long term chronic effects. Large repeated
   Chronic Health Affects:
   exposure to some boron compounds has reportedly resulted in weight loss, skin rash, and anemia.
   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:       no data    
   Autoignition Temperature:       no data    
   Explosion Limits:       no data    
   Extinguishing Medium:       none required    
   Special Fire Fighting Procedures:       No special fire fighting procedures required.    
   Hazardous Combustion and       If involved in a fire this material may emit irritating dusts.    
   Decomposion Products:
   Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.

SECTION 6: Accidental Release Measures
   Small spills can be mixed with vermiculite, sodium carbonate or other suitable non combustible adsorbent and
   Spill and Leak Procedures:
   swept up.

SECTION 7: Handling and Storage
   Handling and Storage:       Store the material in a tightly sealed container in a cool, dry place.    

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 clothing.    
   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:       white powder    
   Molecular Weight:       442.30 (586.43)    
   Melting Point:       780°    
   Boiling Point:       no data    
   Vapor Pressure:       not applicable    
   Specific Gravity:       no data    
   Odor:       none    
   Solubility in Water:       .007g/100cc (0C)    

SECTION 10: Stability and Reactivity
   Stability:       air and moisture stable    
   Hazardous Polymerization:       no hazardous polymerization    
   Conditions to Avoid:       none    
   Incompatibility:       active metals    
   Decomposition Products:       boron oxide and potassium 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):       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:       Not listed in the TSCA inventory    
   SARA (Title 313):       Title compound not listed    
   Second Ingredient:       none    


SECTION 16 - ADDITIONAL INFORMATION
N/A

五硼酸钾八水合物 分子结构与计算化学数据

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:8

3.氢键受体数量:23

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354

7.重原子数量:33

8.表面电荷:-10

9.复杂度: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:18

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