皮革清洁剂中性怎么看
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用酸碱度PH试纸检测酸碱度PH值=1~14，中性=7，酸性=1~7，碱性=7~14，PH值越小，越偏向酸性，PH值越大，越偏向碱性。虽然PH值表正确的中性值=7，但实际上中性的范围可延伸为：PH=6.5~7.5之间。把PH值试纸放入要检测的皮革清洁剂中一秒后取出，根据反应颜色对板，即知酸碱度的PH值。越红越偏向酸性，越蓝黑越则偏向碱性。人或动物都稍稍偏向酯性，即人或动物的酸碱度PH值=5~7.5，广告中说的不伤手的洗洁精，其酸碱度PH值=5~7.5。PH值大于7.5，对皮革就会有伤害，如果大于9，请不要使用。当然，小于4的也不要用。PH值大于7.5或小于4，不但伤皮革，还会伤手。合格的皮革清洁剂，其酸碱度PH值=5~7.5。酸碱度PH试纸一般在教学化工商店有售-好威
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