A secret of alkaline from a five-water borax solution_knowledge_Encyclopedia_Peanut Shell Foreign Trade Network B2B Free Information Publishing Platform

　It's soothingAfter water, the solution is alkaline, usually with ph values between 9. 0 and 9. 6, a characteristic derived from the hydrolytic reaction of boron sand in water。

The alkalinity of the pentaquale solution is derived mainly from hydrolysis: it removes the ion of boron (b4o72-), which reacts with water to produce ion of boron acid (h3bo3) and ion of boron acid (b(oh)-4-), while releasing hydrooxygen ion (oh-), so that the solution is alkaline in a manner of b4o72-+7h2o ⇌ 4h3b3+ 2b (oh)-4-. Zenium

Five-water porridge

The buffer effect of the solution is closely related to a hydrolysis product: hydrolysed boron acids and borate root ion form cosalate pairs, and when a small amount of strong acid is added, the borate ion and hydrogen ion produce boron acids; when a small amount of strong alkalis is added, the boron acids form a ph relative stability, which is particularly effective in the range of ph8. 5 to 10. 5。
The alkaline properties of pyrochlor are essentially identical to those of ten pyrochlors: they act similarly in aqueous solutions because they both decimate the same pyrochloric ion (b4o72-), and produce the same buffer system after hydrolysis, so there is no difference in alkalineity and buffer properties。
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