Blue Ph Scale Litmus Paper

Sulfuric acid is obviously acidic in nature.

Blue ph scale litmus paper. Common acids include include tartar sauce corn bacon and beer. Distilled water has a ph of 7 so it is neutral. Neutral litmus paper is purple. Blue litmus paper can indicate an acid with a ph between 4 and 5 or lower.

Acids turn blue litmus paper red. When red litmus paper is placed into a basic substance it will turn blue. Red litmus paper can show a base with a ph greater than 8. Litmus can also be prepared as an aqueous solution that functions similarly.

The table shows. Ph scale diagram with corresponding acidic or alcaline values for common substances food household chemicals. Colorful vector illustration in flat style isolated on white background. This is a pass or fail type of test that only works with acidic or basic liquids.

Litmus indicator solution turns red in acidic solutions blue in alkaline solutions and purple in neutral solutions. Red litmus paper is meant to test only for an alkaline ph level. It turns blue litmus paper red. It turns red litmus.

Bases turn red litmus paper blue. Litmus paper color chart. The main use of litmus is to test whether a solution is acidic or basic blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions with the color change occurring over the ph range 4 5 8 3 at 25 c 77 f. A ph scale reading of 8 indicates a weak base.

A ph scale reading of 6 indicates a weak acid. The blue paper changes to red indicating acidity somewhere between the ph range of 4 5 to 8 3. Note that 8 3 is alkaline red litmus paper can indicate alkalinity with a change to blue. Red litmus paper turns blue if it comes in contact with a base alternatively blue litmus paper turns red with acids.

Examples of litmus paper color changes. To test the ph of a substance dip a strip of litmus paper into the solution or use a dropper or pipette to drip a small amount of solution onto the litmus paper. Sodium hydroxide is a base. Neutral solutions do not cause a change of color although there are some brands of blue litmus paper that will turn purple if the substance is neutral.

If it comes in contact with an acidic or neutral substance it will remain red. In general litmus paper is red below a ph of 4 5 and blue above a ph of 8 3. Litmus paper comes as red litmus paper and blue litmus paper.