**Contents**show

## How do you make 99% isopropyl alcohol into 70?

Thus, adding 35.35mL of 99% IPA to **14.65mL of distilled water** creates a 50mL solution of 70% IPA.

## Can tap water be used to dilute alcohol?

Therefore, you can use **tap water** to dilute high-concentration ethanol products.

## Can I dilute 90 isopropyl alcohol with water?

While it is generally okay to use it at the 70/30 ratio, many detailers prefer to dilute it down to a **50/50 (Alcohol to Distilled Water) ratio** for optimal results.

## Should 99 alcohol be diluted?

It’s 99% pure alcohol. Adding anything to the alcohol will dilute it. You must make sure not to dilute it too much with glycerin, water or aloe or it will lose its effectiveness in terms of proper sanitation. 99% alcohol in **itself is too harsh for your skin** which is why it should be diluted.

## How do you dilute 500ml 99 isopropyl alcohol to 70?

TO MAKE A STANDARD SOLUTION (70%):

Dilute by **adding 1 part water to 2 parts of this 99% Isopropyl Alcohol**.

## How do you dilute 91% isopropyl alcohol to 70?

Measure out one cup of 91 per cent rubbing alcohol, and pour it into the plastic container. **Add one-third of a cup of water** and stir to mix the solution. The solution is now 70 per cent rubbing alcohol. Repeat this procedure as often as needed to obtain the desired amount of 70 per cent rubbing alcohol.

## Can you dilute 91 isopropyl alcohol with water?

In terms of mathematics or statistics, you can **dilute 99% isopropyl alcohol to 91% IPA by adding about 9.8% of water in it**. In simple words, it can be said that just take 10 parts of 99% isopropyl alcohol and add 1 part of water to make it 91% IPA.

## How do you dilute 90% alcohol to 70?

1/5 of 15 ounces is 3 ounces. Thus, **3 ounces of water added to 15 ounces of 90%** rubbing alcohol will create a solution of 70% rubbing alcohol.

## How do you dilute 100% alcohol to 70%?

Add **350 mL** of 100 percent isopropyl alcohol to a 500 mL graduated cylinder. Ensure that the measurement is read at eye level with the meniscus, the bottom of the curved liquid, at 350 mL. Add an additional 150 mL of water to the graduated cylinder for a total volume of 500 mL, again measured at eye level.

## Is 99% isopropyl alcohol safe for skin?

The only downside of 99% isopropyl alcohol is that, understandably, **it needs to be used and stored properly**. In this concentration, it is highly flammable, may cause dizziness if used in high quantities in an ill-ventilated area, and can be an irritant to skin and eyes.

## How do you dilute 95% alcohol to 75%?

To replace 1 liter of 95% alcohol we have to use **1.26 liters of 75% alcohol**. We need more 75% alcohol because water was added to 95% alcohol to bring it down to make the 75% version.

## How do you dilute 95% alcohol to 70?

For example, to make 70% ethanol from 95% ethanol, **take 70 mL of 95% ethanol and add enough water to bring the volume to 95 mL**. You will then have 95 mL of 70% ethanol. This works for any dilution and all that is required is a large enough graduated cylinder.