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Rubbing Alcohol 70 %: Isopropanol Made Up with Water
Isopropyl rubbing alcohol is about 70 % pure isopropanol by volume in water, used to clean and disinfect. Measure the 99 % alcohol, add water up to the full volume, and bottle it. It is volatile and flammable: keep it away from flames.
The picture: our diagram, 707 mL of 99 % isopropanol made up to 1000 mL.
Utangiye
Ten minutes
Amabwiriza
1
1
Measure the alcohol
Measure the alcohol
Measure 707 mL of 99 % isopropanol into the cylinder (for 1 litre; other sizes in step 4). No flames nearby.
Ibikoresho by'iyi ntambwe:
Alukoli ya isopropili 99 %0.707 litiroIbikoresho bikenewe:
Igikoresho gipima ibitemba2
2
Make up to volume
Make up to volume
Add water up to the 1000 mL mark. Mixing shrinks the volume a little, so stir and top up to the mark again.
Ibikoresho by'iyi ntambwe:
Amazi Yatunganyijwe0.3 litiroIbikoresho bikenewe:
Igikoresho gipima ibitemba3
3
Bottle it
Bottle it
Pour it through the funnel into a clean bottle, close it and label it.
Ibikoresho bikenewe:
Akayunguruzo k'Ikirahure Gafite Umugozi
Icupa ry'ikirahuri (risobanutse)4
4
How much isopropanol
How much isopropanol
Gupakira ikaye ya Jupyter…
Ibikoresho
2- 0.707 litiroUmwanya
- 0.3 litiroUmwanya
Ibikoresho bikenewe
3- Umwanya
Iki gishushanyo gikora
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