The paper points out the weakness of aluminum and sodium hydroxide liquid experiment in the chemistry textbook and presents the detailed improving method on this experiment.

指出了化学教材中铝与氢氧化钠溶液反应实验的不足，介绍了对该实验改进的具体方法。

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METHODS Oxygen flasr combustion method was used. Hydrogen peroxide solution was used as the absorption liquid and then was titrated by sodium hydroxide.

方法采用氧瓶燃烧法，过氧化氢溶液为吸收液，用氢氧化钠滴定。

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RESULTS The special spore of P. marneffei could be found by sodium hydroxide smear of the liquid of lymphonodus puncture and Gram staining.

结果 氢氧化钠涂片和革兰染色能检出马尔尼菲青霉菌所特有的孢子。

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The machine blends iron, bleach and sodium hydroxide to form a dark purple liquid mixture of ferrate, salt and water that gets metered into the water supply. (The color disappears instantly as it reacts with the water.) Common disinfectants ozone and chlorine can turn the water cloudy or, worse, leave behind harmful chemical by-products.

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