An investigation is also made on determining DMDAAC qualitatively by bromophenol blue test and quantitatively by tetraphenyl boron sodium precipitation reac...
By fuming with sulfuric-phosphoric acid mixture the residual hydrofluoride was then expelled，and boron was finally determined by curcumin spectrophotometry after distillation.
Rare earth metals, such as metallic neodymium and metallic didymium (metallic praseodymium-neodymium), are used for rare earth magnets, mainly neodymium-iron-boron magnet.
By means of analysis, hardness test, abrasion test, this paper studies the effect of boron-sulphurizing on microstructure and properties of boronized layer.
Two new exocyclic ring-fused boron-dipyrromethene (BDP) dyes with benzo crown ether subunit at meso-position were prepared.Their spectroscopic and electrochemical properties were investigated.
Boron additives in rocket fuels also failed. The combustion process involved proved unexpectedly complex, and the promised additional energy was not forthcoming.
Compounds of boron feature in washing powders and cleaning products (" borax" ), antiseptics and water softeners, and also as additives in fibreglass, but such roles are humdrum.
The project's objective is to " determine a form of boron or a boron-based chemical pathway that leads to implementation of boron in energetic compounds, especially fuels (solid and liquid)" .
After that, for days, thousands of tons of clay, sand, boron, and dolomite, were dropped by helicopter into the burning reactor to quell the fire, but also to try and prevent the spread of radiation.
法
腐植酸类肥料中元素硼
方法。
（汇总） 
出相对纯
又回来了。
有
的燃烧过程出乎意料地复杂，而且所承诺的额外能量并没有到来。
员已经成功制造出了一种
途径，使
