scholarly journals Study on the Existence Form and Removal of Boron Acid

2019 ◽  
Vol 484 ◽  
pp. 012059
Author(s):  
Rongrong He ◽  
Tao Yu ◽  
Jiajia Du ◽  
Chengtun Qu
Keyword(s):  
Boron Acid

Arylboronic Acids in Self-condensation of Glucosamines Forming Deoxyfructosazine, Catalysts or Reagents?

2019 ◽  
Author(s):  
Meifeng Wang ◽  
Gan Zhu ◽  
Yiqun Li ◽  
Liuqun Gu
Keyword(s):  
Molecular Recognition ◽  
Boric Acid ◽  
Boronic Acid ◽  
Catalytic Mechanism ◽  
Organic Transformations ◽  
Food Industries ◽  
Arylboronic Acids ◽  
Excess Amount ◽  
Phenyl Boronic Acid ◽  
Boron Acid

Arylboronic acids were widely used as efficient catalysts in direct amide formation and other organic transformations. Surprisingly, reports on their use as catalysts in carbohydrates synthesis are very rare even though boron acid-diol complexation was extensively investigated in molecular recognition for saccharides and so on. Here we developed an efficient arylboronic acids catalyzed dimerization of glucosamines forming deoxyfructosazine which is important compound in pharmaceutical and food industries, against a commonly held belief that excess amount of phenyl boronic acid (or boric acid) is a must. A catalytic mechanism was also proposed and arylboronic acids instead of their boronates was identified as catalysts.

Microwave-assisted preparation of boron acid modified expanded graphite for the determination of chloramphenicol in egg samples

2018 ◽  
Vol 1565 ◽  
pp. 29-35 ◽  
Author(s):  
Tianyu Zhou ◽  
Fengshuang Zhang ◽  
Haochi Liu ◽  
Huiyu Li ◽  
Yuan Xu ◽  
...  
Keyword(s):  
Expanded Graphite ◽  
Microwave Assisted ◽  
Boron Acid

scholarly journals Arylboronic Acids in Self-condensation of Glucosamines Forming Deoxyfructosazine, Catalysts or Reagents?

2018 ◽  
Author(s):  
Meifeng Wang ◽  
Gan Zhu ◽  
Yiqun Li ◽  
Liuqun Gu
Keyword(s):  
Molecular Recognition ◽  
Boric Acid ◽  
Boronic Acid ◽  
Catalytic Mechanism ◽  
Organic Transformations ◽  
Food Industries ◽  
Arylboronic Acids ◽  
Excess Amount ◽  
Phenyl Boronic Acid ◽  
Boron Acid

Arylboronic acids were widely used as efficient catalysts in direct amide formation and other organic transformations. Surprisingly, reports on their use as catalysts in carbohydrates synthesis are very rare even though boron acid-diol complexation was extensively investigated in molecular recognition for saccharides and so on. Here we developed an efficient arylboronic acids catalyzed dimerization of glucosamines forming deoxyfructosazine which is important compound in pharmaceutical and food industries, against a commonly held belief that excess amount of phenyl boronic acid (or boric acid) is a must. A catalytic mechanism was also proposed and arylboronic acids instead of their boronates was identified as catalysts.

The Application of 10B Enriched Boric Acid in Nuclear Power Industry

2010 ◽  
Author(s):  
Jiao Xu ◽  
Weijiang Zhang
Keyword(s):  
Nuclear Power Station ◽  
Nuclear Power ◽  
Cooling System ◽  
Power Station ◽  
Chemical Agents ◽  
Natural Element ◽  
Boron Acid ◽  
Effective Neutron ◽  
Complex Chemistry ◽  
High Level

Nowadays, boron acid is used widely in nuclear power station as the chemical controlling remedy by making use of 10B as the effective neutron absorbent. But the natural element boron includes 10B just 20% (mass fraction), all the rest is 11B which is very weak at absorbing neutron. This paper brings forward a way to improve the effect of chemical controlling remedy on the nuclear power station through taking 10B enriched boron acid as the substitution of the natural one. If this technological measurement is taken, the operation control of nuclear reaction would get at high level. Not only the amount of boron acid waste would drop suddenly, but the amount of all kinds of chemical agents added in the cooling circulation would lower down sharply. So, many complex chemistry problems in the cooling system could be solved, such as erosion of devices, worse quality of wastewater and consume of chemical agents, etc.

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