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如何自制pH试纸条

下载PDF文件

下载PDF文件

如果你什么事情都喜欢亲力亲为，而且家里有一些园艺或科学实验类的剩余物品，那你可以自制pH试纸。本文介绍了几种不同的pH试纸制作方法。

方法 1

方法 1 的 10:

基本概述

下载PDF文件

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{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/7\/70\/Make-Homemade-pH-Paper-Test-Strips-Step-3-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-3-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/7\/70\/Make-Homemade-pH-Paper-Test-Strips-Step-3-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-3-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

有许多物美价廉的牌子可供选择。
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把所选的已用蒸馏水调合好的混合物装在这个盘子或碟子里。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/b\/bd\/Make-Homemade-pH-Paper-Test-Strips-Step-5-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-5-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/bd\/Make-Homemade-pH-Paper-Test-Strips-Step-5-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-5-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

纸一定要被均匀地润湿。
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晾试纸的地方一定要没有酸，碱或其他可能影响试纸和其效力的挥发物。
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{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/3\/35\/Make-Homemade-pH-Paper-Test-Strips-Step-8-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-8-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/3\/35\/Make-Homemade-pH-Paper-Test-Strips-Step-8-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-8-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

广告

方法 2

方法 2 的 10:

紫甘蓝试纸条

下载PDF文件

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{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/1\/18\/Make-Homemade-pH-Paper-Test-Strips-Step-10-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-10-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/1\/18\/Make-Homemade-pH-Paper-Test-Strips-Step-10-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-10-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/7\/71\/Make-Homemade-pH-Paper-Test-Strips-Step-11-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-11-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/7\/71\/Make-Homemade-pH-Paper-Test-Strips-Step-11-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-11-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/0\/07\/Make-Homemade-pH-Paper-Test-Strips-Step-12-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-12-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/0\/07\/Make-Homemade-pH-Paper-Test-Strips-Step-12-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-12-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/0\/06\/Make-Homemade-pH-Paper-Test-Strips-Step-13-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-13-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/0\/06\/Make-Homemade-pH-Paper-Test-Strips-Step-13-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-13-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

5
注意最终得到的会是：
- 浅灰色试纸条。
- 碱会使试纸变成绿色；酸会使其变成红色。
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广告

方法 3

方法 3 的 10:

大丽花试纸条

下载PDF文件

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{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/c\/c1\/Make-Homemade-pH-Paper-Test-Strips-Step-16-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-16-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/c1\/Make-Homemade-pH-Paper-Test-Strips-Step-16-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-16-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/2\/26\/Make-Homemade-pH-Paper-Test-Strips-Step-17-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-17-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/2\/26\/Make-Homemade-pH-Paper-Test-Strips-Step-17-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-17-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

广告

方法 4

方法 4 的 10:

接骨木试纸条

下载PDF文件

{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/2\/26\/Make-Homemade-pH-Paper-Test-Strips-Step-18-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-18-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/2\/26\/Make-Homemade-pH-Paper-Test-Strips-Step-18-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-18-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

没有必要在果汁中再加水。
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2
注意最终得到的蓝色试纸：
- 遇酸会变为红色
- 遇碱会变为绿色。
广告

方法 5

方法 5 的 10:

蓝色石蕊试纸条

下载PDF文件

{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/e\/e4\/Make-Homemade-pH-Paper-Test-Strips-Step-20-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-20-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/e\/e4\/Make-Homemade-pH-Paper-Test-Strips-Step-20-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-20-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/7\/77\/Make-Homemade-pH-Paper-Test-Strips-Step-21-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-21-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/7\/77\/Make-Homemade-pH-Paper-Test-Strips-Step-21-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-21-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/4\/44\/Make-Homemade-pH-Paper-Test-Strips-Step-22-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-22-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/4\/44\/Make-Homemade-pH-Paper-Test-Strips-Step-22-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-22-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/3\/3b\/Make-Homemade-pH-Paper-Test-Strips-Step-23-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-23-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/3\/3b\/Make-Homemade-pH-Paper-Test-Strips-Step-23-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-23-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

用热水从石蕊中萃取出的颜色更浓，但该液体还是需要通过蒸发浓缩。
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广告

方法 6

方法 6 的 10:

红色石蕊试纸条

下载PDF文件

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{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/0\/00\/Make-Homemade-pH-Paper-Test-Strips-Step-26-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-26-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/0\/00\/Make-Homemade-pH-Paper-Test-Strips-Step-26-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-26-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

在试管中倒入一毫升稀硝酸。
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然后用紫甘蓝汁试纸条再次测试。用姜黄试纸再次测试。
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广告

方法 7

方法 7 的 10:

玫瑰花试纸条

下载PDF文件

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{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/a\/ac\/Make-Homemade-pH-Paper-Test-Strips-Step-30-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-30-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/ac\/Make-Homemade-pH-Paper-Test-Strips-Step-30-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-30-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/1\/1b\/Make-Homemade-pH-Paper-Test-Strips-Step-31-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-31-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/1\/1b\/Make-Homemade-pH-Paper-Test-Strips-Step-31-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-31-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

广告

方法 8

方法 8 的 10:

大黄试纸条

下载PDF文件

{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/1\/15\/Make-Homemade-pH-Paper-Test-Strips-Step-32-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-32-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/1\/15\/Make-Homemade-pH-Paper-Test-Strips-Step-32-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-32-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/b\/b0\/Make-Homemade-pH-Paper-Test-Strips-Step-33-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-33-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b0\/Make-Homemade-pH-Paper-Test-Strips-Step-33-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-33-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

广告

方法 9

方法 9 的 10:

淀粉试纸条

下载PDF文件

{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/8\/8b\/Make-Homemade-pH-Paper-Test-Strips-Step-34-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-34-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/8\/8b\/Make-Homemade-pH-Paper-Test-Strips-Step-34-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-34-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

棉绳可以用来代替纸。
{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/1\/10\/Make-Homemade-pH-Paper-Test-Strips-Step-35-Version-2.jpg\/v4-460px-Make-Homemade-pH-Paper-Test-Strips-Step-35-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/1\/10\/Make-Homemade-pH-Paper-Test-Strips-Step-35-Version-2.jpg\/v4-728px-Make-Homemade-pH-Paper-Test-Strips-Step-35-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}

广告

方法 10

方法 10 的 10:

姜黄试纸条

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警告

在取用任何酸的时候需要多加小心且需要在负责人的监管下取用，比如你在做课堂项目则需要一个科学老师监管。在取用任何物品时穿戴适宜的防护用具。
把制作好的试纸条保存于阴凉、黑暗、干燥的密封容器中。
只能用干净干燥的手来拿取试纸条。

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你需要准备

蒸馏水
陶制碟子或盘子
所选的蔬菜或矿物质
纸条
干净，干燥的染色区域
紫甘蓝效果最好

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参考

这篇文字出自 The Household Cyclopedia of General Information 1881 .

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印度尼西亚语

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