硼砂
- 名borax;sodium borate
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[borax crystal;sodium borate;fincalconite] 硼的化合物。白色或无色结晶,溶于热水,用于制造光学玻璃、医药、焊剂、试剂、搪瓷等
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但科学通讯员斯图尔特·法瑞蒙德博士说,尽管我们应认识到硼砂和硼的危害,但无需过于担心。
But Science Communicator Dr Stuart Farrimund says while we should be aware of borax and boron , we shouldn 't be hugely concerned .
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名为“Which?”的机构测试了十一种畅销的黏胶玩具,发现八种产品中的硼砂含量都高于推荐水平,硼砂由一种叫作“硼”的化学物质制成。
Which ? tested 11 popular slime products and found eight contained higher than recommended levels of borax , which is made of a chemical called boron .
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硼砂在制备WCp增强铁基复合材料中的粘结作用
Bonding Function and Mechanism of Borax in Fabricating WC Particle Reinforced Iron Matrix Composites
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槲皮素-H2O2-硼砂荧光光度法测定方法的研究
Studies on fluorimetric method for qct , h_2o_2 and borax
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硼砂饱和溶液的差示FTIR光谱和Raman光谱分析
Differential FTIR and Raman Spectroscopic Analysis of Saturated Aqueous Solution of Borax
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硼砂熔盐被覆VC机理的探讨
On Mechanism of VC-coating Process in Borax Bath
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硼砂作稳定剂时胶体Sb2O5制备条件的优化
Optimization of Technological Preparation Condition of Colloid Sb_ 2 O_5 by Using Sodium Borate as Stabilizer
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饲喂硼砂对CP降解率未产生影响;
CP degradability was unaffected by borax .
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利用硼砂、TDI与PVA反应产物的水不溶性判断该交联反应的进程。
The reaction degree was determined by the water resistance of the products .
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硼砂变质细化和电脉冲细化的复合作用使αAl枝晶成为球状晶。
And the dendritic structure of α - Al is broken into globular crystals by the compound-effect of pulse electric current and borax refining .
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5~20mg/kg硼砂能明显提高花粉发芽率。
Boron ( 5 ~ 20 mg / kg ) greatly improved pollen germination rate .
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考察了背景电解质中硼砂缓冲液的pH和浓度、βCD浓度、有机添加剂甲醇含量及分离电压对手性分离的影响,建立了毛细管电泳分离西孟坦对映异构体的方法。
The influences of the concentration and pH of borate buffer solution , β - CD concentration , methanol content and separation voltage were investigated .
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以十水硼砂和硫酸锌为原料,在表面活性剂作用下制备了颗粒状硼酸锌Zn60(OH)(B03)3。
With borax decahydrate and zinc sulphate as raw materials , granular zinc borate Zn6O ( OH )( BO3 ) 3was prepared in the present of surfactant .
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以硼砂和氯化钙为原料,采用超临界流体干燥技术(supercriticalfluiddrying简称SCFD)制备纳米级硼酸钙。
Nanometer calcium borate was prepared by supercritical fluid drying ( SCFD ) from borax and anhydrous calcium chloride .
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其他添加剂可以在一定程度上减小Mg、Al、Si和Ca的富集现象,但其效果弱于硼砂。
Other additives can reduce Mg , Al , Si and Ca enrichment to some extent , but their effects are weaker than the effect of borax .
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在绿原酸溶液中加入硼砂和十六烷基三甲基溴化铵(CTAB),可以产生敏化荧光。
Addition of borax and cetyl trimethylammonium bromide ( CTAB ) into CA solution can produce sensitized fluorescence .
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通过添加适量的交联剂硼砂和分散剂KOH,硅烷偶联剂以及有机活性助剂等,吹入CO2气体,硬化后,树脂砂芯得到较高初强度和终强度。
After passing CO2 through the resin-binded sand , higher initial and final strength could be achieved by adding some cross-linking agents .
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加入交联剂戊二醛重量的35%的三聚氰胺及ST和PVA干重的1.5%的硼砂也可以改善淀粉薄膜的力学性能和防水性能。
Mechanical properties and water-resistance of the blend films were improved by adding 35 % melamine of cross-linker and 1.5 % borax of starch and PVA .
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采用立方氮化硼砂轮磨削电瓷瓷套表面,用X射线衍射法(XRD)分析了其表面所产生的残余应力。
The cube BN grinding wheel was adopted to grind electric ceramic insulator , and the residual stress of insulators was analysed by the X-ray diffraction ( XRD ) technique .
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我们对影响富集的条件,包括溶解样品的盐酸浓度、背景缓冲硼酸-硼砂缓冲液pH值及浓度、电压以及上样时间进行了优化。
The apparatus that influence the stacking of NOR has been investigated , including the concentration of HCl , the pH and concentration of background buffer , applied voltage and sample injection time .
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两种方法均以硼砂为缓冲液,分别用SDS、和CTAB为主要提取试剂,可以提取出高质量的木本植物总RNA;
The main reagent of extraction buffer is borax , and the main extraction reagent is SDS and CTAB respectively in the two extraction methods .
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该法使硫酸钠和硼砂的投加量降低了28%,降低了出水盐类的质量浓度,PVA回收率可达90.3%。
It is found that the amount of the salting agent to be added is reduced by28 % and the PVA recovery rate is as high as90.3 % .
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记录了硼砂饱和溶液的差示FTIR光谱和Raman光谱,分别对其FTIR吸收波数和Raman位移进行了归属。
The differential FTIR spectroscopy and Raman spectrum of saturated aqueous solution of borax have been studied . The assignments of the recorded FTIR frequencies and Raman shifts are given .
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硼砂组A(1g硼砂/kg日粮)、硼砂组B(2g硼砂/kg日粮)和AHA组(25mg/kg日粮)的血液生化指标差异不显著(p>0.05)。
Blood biochemical index were unaffected in borax group A ( lg borax / kg diet ), borax group B and AHA group ( 25mg / kg diet ) .
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废纸和淀粉糊混合后,先后加入柠檬酸和硼砂,分别作为Na2CO3的反应剂和淀粉的交联剂。
After the wastepaper and starch are mixed , the citric acid and borax are added in turn .
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结果表明:良好的表面层应由Cu2O和非晶态的硼砂构成;
The results show that the good surface layer consisting of a mixture of Cu2O and noncrystalline borax ;
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结果表明:硼酸、硼砂、石墨粉为主要成份的渗硼剂,具有良好渗速、易获得Fe2B组织,有一定重复使用性能。
Results have demonstrated that the boronizing agent with boric acid , borax and powdered graphite as its major components has advantages of good boronizing rate , easily obtaining Fe_2B structures and reusability .
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结果:微波法可将硼砂30g在30min内煅制完毕;
RESULTS : Calcined Borax will be available ( within ) 30 min with microwave treatment .
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通过改性时间、温度、淀粉及硼砂用量和改性剂的加入方式等因素,对改性PVA胶性能的影响进行深入讨论,确定制备改性PVA胶的最佳改性条件。
Modified time , temperature , amount of starch and borax , addition way of modifier , which influencing properties of modified PVA were discussed in details . The optimum modification conditions were found .
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钠化渣在常压或加压条件下进行水浸,将硼转移到水溶液中,再调节水溶液的pH值,室温下自然冷却结晶,最终得到硼砂晶体。
Na2CO3-modified slag is leached by water at atmospheric pressure or high pressure conditions . The boron could transfer to the aqueous solution and then adjusting the pH value of the aqueous solution . Subsequently , the borax is crystallized in the solution at room temperature .