Litmus indicators are natural dyes derived from lichens, primarily used to determine the acidity or alkalinity of a solution. The chemical substance associated with the CAS number 1393-92-6 is specifically known as "litmus." It exhibits distinct color changes in response to pH variations: it turns red in acidic conditions (pH below 4.5) and blue in alkaline conditions (pH above 8.3). Litmus is a weak acid itself, and its color change is due to the structural alterations in its molecular configuration when it interacts with hydrogen ions (H⁺) or hydroxide ions (OH⁻). This property makes it an effective pH indicator in various applications, including laboratory experiments and educational demonstrations. Litmus is typically available in paper form, allowing for easy testing of liquids. However, it is important to note that litmus does not provide precise pH values; it merely indicates whether a solution is acidic or basic. Its natural origin and simplicity make it a widely used tool in chemistry and environmental science.

Litmus indicators

1393-92-6: Litmus indicators are natural dyes derived from lichens, primarily used to determine the acidity or alkalinity of a solution. The chemical substance associated with the CAS number 1393-92-6 is specifically known as "litmus." It exhibits distinct color changes in response to pH variations: it turns red in acidic conditions (pH below 4.5) and blue in alkaline conditions (pH above 8.3). Litmus is a weak acid itself, and its color change is due to the structural alterations in its molecular configuration when it interacts with hydrogen ions (H⁺) or hydroxide ions (OH⁻). This property makes it an effective pH indicator in various applications, including laboratory experiments and educational demonstrations. Litmus is typically available in paper form, allowing for easy testing of liquids. However, it is important to note that litmus does not provide precise pH values; it merely indicates whether a solution is acidic or basic. Its natural origin and simplicity make it a widely used tool in chemistry and environmental science.

CAS 1393-92-6

Litmus indicators

Litmus

Ref: 3B-L0062

Litmus indicators

Ref: IN-DA001APU

Litmus

Ref: 7W-GT7868