新来乍到，给买不到酒精的大家推荐一下我的方案。希望版主高亮一下造福更多朋友。
首先是Diggers 1L Lavender Multi-Purpose Surface Cleaner。 这是酒精消毒液，针对性消毒物体表面的。不过我没买，不知道它是多少浓度。
https://www.bunnings.com.au/diggers-1l-lavender-multi-purpose-surface-cleaner_p4460906
2是Diggers Methylated Spirits
https://www.bunnings.com.au/diggers-methylated-spirits-1l_p1560782
这个是用于清洁的95%工业酒精，每100ml酒精加水27ml可以兑成75%酒精。我和厂家确认过这东西不含甲醇，里面添加的是苦味剂，防止酒鬼喝掉。厂家也说里面工业酒精里面还有一些杂质，不建议往手上喷。不过我觉得非常时期，用来替代酒精也未尝不可。而且这东西便宜。
以上2种在bunnings有售。
isopropyl alcohol,商品名isocol rubbing alcohol 。是异丙醇，和酒精作用类似，目前贵而且难买。
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还是酿酒吧。。里外都能杀毒。。。哈哈
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Diggers Methylated Spirits ，上面写着最少95%的乙醇
95 / (100 + W) = 0.75
95 = 75 + 0.75W
20 = 0.75 W
W = 20 * 4/3 = 26.7
所以，100ml 配 26.7ml 水
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Methylated Spirits
Methylated spirits is a clear, colourless liquid that is commonly used across most industrial industries and is often used within the household. The methylated spirits boiling point is 78 °C and the flashpoint is 11 °C. Methylated spirits is often referred to as denatured alcohol which means that it contains a denaturant in it so it cannot be consumed. Sydney Solvents methylated spirits is 99% methylated spirits with a 1% bitrex in it. If it didn’t contain denaturant in the methylated spirits it would be classed as normal alcohol that is safe to drink.
What is denatured alcohol?
Denatured alcohol refers to alcohol that has additives in the product in order for it to be sold as a non-consumable and palatable product. This is because alcohol is used for a lot more uses than drinking, so to avoid the high tax and regulations on drinking alcohol, denatured alcohol was created for industrial, disinfecting and non-drinking uses. The additive in denatured alcohol has the most bitter taste known and is extremely poisonous and unpleasant smelling.
Methylated Spirits Uses
Denatured alcohol can be used to disinfectant, sterilise medical equipment, as a window cleaner, and there are many more uses. Methylated spirits are also perfect for indoor or outdoor methylated heaters. It is an effective solvent in the paints, lacquers and varnish industry. You will also find that it is found in a lot of cosmetics such as toners and makeup brush cleaners. It can be used as a window cleaner, spray and wipe disinfectant, and a steriliser.
Methylated Spirits Rubbing Alcohol
Methylated spirits can be used as rubbing alcohol when diluted down to about 65-70%. The reason it needs to be diluted down to this is so it is not as harsh on the skin and so it evaporates off slower in order to kill the bacteria. The higher the strength the more it will flash off but in the circumstance when you need to kill bacteria, sometimes the 70% works better as it has longer surface time, therefore, more time to kill the germs.
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第二种去Bunning问过，没有卖的
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我买的上面写着 99%-100%乙醇
那应该是兑水多少呢？
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这个到底是按照重量还是按照毫升？酒精比水轻，我都是用厨房秤称重后计算需要添加的水量的。
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体积分数
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兑酒精是用体积比的，而且不需要很准，大概70-75%就可以
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可是100ml酒精加26.7ml水最后得到的不是126.7ml啊，那就是应该继续补充直到总体积达到126.7ml？
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我在想我按照重量配出来的75%，到底是是高于还是低于按照体积比配出的75%呢。
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Alcohol density d=0.8g/ml
所以你100g酒精有125ml了，按重量比配出来的浓度偏高
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75% 是体积分数。
就是说 3份酒精（100%）加 1份水。最终是多少就不管他了
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刚好近期对各种清除冠状病毒的消毒液了解了下。随便补充一下：Diggers Lavender Multi-Purpose Surface Cleaner. 成分是70%浓度的ethanol酒精。ethanol是乙醇酒精，比isopropyl alcohol异丙醇酒精对人体毒性更少，可以一样起破坏杀死冠状病毒的作用。也就是说不需要兑水，买回来直接用就可以，平时可以用厨房、冰箱清洁等等。
但是现阶段不管什么酒精在超市货架上都看不到了。
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我们买的100%ethanol乙醇酒精，也是应该三份酒精， +1份水吗？
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兑了以后总体积会变
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100%ethanol的话必须兑成70-80%浓度才对冠状病毒有破坏效果。你可参考楼上各位朋友的兑水方法比例。
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我看到上面大家写的是从95%开始兑
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另外大家觉得哪种喷瓶用来喷这个比较好？
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100%的更容易兑啊，100ml酒精加30-20ml的水不就是70%-80%了？
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我用500ml的普通花园小喷壶，小于这个也可以嘛。太大的喷壶感觉不好用。
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我之前在Bunnings 买了喷清洁剂的喷壶，但是感觉喷出来的水柱很集中，不怎么分散。
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应该旋一下可以调节成喷雾状吧，最普通的喷壶都有柱状和喷雾两个模式的喷射方式
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酒精的浓度指的是 v/V就是体积的意思，所以不要按重量
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100 / (100+w) = 75%
w = 33.3ml
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除非跟厂家确认过，否则还是要小心使用啊
我查到今年二月新州卫生部还有警告，有个案喝了变性酒精，内含60%甲醇
https://aci.health.nsw.gov.au/__ ... -Clinical-Alert.pdf
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diggers牌子的我和厂家确认过不含甲醇。而且我们也不会去喝它。
你的这个case里面 是酒鬼把甲醇拿去喝了
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不是把甲醇拿去喝了，是喝了不合规的Methylated Spirits
当甲醇浓度过高时，接触皮肤也是很容易中毒的，所以要确定好成分再使用
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