answersLogoWhite

0

I'm not aware of them having a shelf life. I know that the ones in my chemistry set when I was a kid lasted years. If they've faded to grey, you might be able to regenerate them by exposing them to a weak dilute acid or base (depending on what color you want).

User Avatar

Wiki User

16y ago

What else can I help you with?

Related Questions

What test is done to determine pH?

You can use Litmus strips, which you can buy from a variety of places. TEEHEE.


What do you need to test if something is alkali or acid?

You can use litmus paper or pH test strips to test if something is alkali or acid. Litmus paper turns red in acidic solutions and blue in alkaline solutions, while pH test strips provide a numerical pH value to indicate acidity or alkalinity.


How can you test pH in milk. Is litmus paper sufficient?

Litmus paper is not typically sufficient for testing the pH of milk. To accurately test the pH of milk, you can use a pH meter or pH strips that are specifically designed for testing the pH of food and beverages. These tools provide more accurate and precise measurements than litmus paper.


What is the name of paper to test pH?

Litmus paper is another name for pH paper. They are synonymous in name and function.


What is shelf life of urine collected for a drug test?

120 days.


What is the safest way to test a presence of an acid or a base?

The safest way to test for the presence of an acid or a base is to use litmus paper or pH strips. Litmus paper turns red in the presence of an acid and blue in the presence of a base, while pH strips provide a more precise measurement of the pH level. These methods are simple, safe, and provide reliable results.


How do you test pH levels of water?

To test the pH level of water, you can use pH test strips or a pH meter. For pH test strips, simply dip the strip into the water and compare the color change to the provided chart. For a pH meter, follow the manufacturer's instructions to calibrate the device and then immerse the probe into the water to get a digital reading of the pH level.


What color litmus paper is used to test acids?

Red litmus paper is used to test for acids. If the red litmus paper turns blue when dipped in a substance, it indicates the presence of an acid.


What substance is used to determine the presence of an acid or base?

by using an indicator like litmus paper!!!


How can you tell if a liquid is a base?

You can test if a liquid is a base by using litmus paper or pH indicator strips. Bases will turn red litmus paper blue and have a pH greater than 7. Additionally, bases typically have a soapy or bitter taste.


How do you do a pregnancy test with litmus paper?

You cannot predict pregnancy with litmus paper. litmus paper detect pH not HCG


What COLOR of litmus paper do you need to test pH level?

Blue litmus paper