pH test paper

Description

HYUNDAI MICRO’s pH indicator papers are easy to handle and measure for pH range.
-The colors of the scales are specially mixed to perfectly match the reaction color of  the indicator papers. Plastic reels that ensure long-term stability and protection against many external influences.
-The indicator paper will always be ready-to-use when needed.

For school materials, drainage test, process control

	Measuring Range : pH 1~11 pH unit graduations between each 1 unit Suitable for estimated measurement of pH in unknown liquid Easy to measure by clear color in a range of measurement

	Measuring Range : pH 1~14 pH unit graduation : pH 1~10 each unit 1, pH 10~14 each unit 2 Suitable for measurement of close to neutral colors Suitable for measurement of pH in unknown liquid

A buffering agent is a weak acid or base used to maintain the acidity(pH) of a solution near a chosen value after the addition of another acid or base.
That is, the function of a buffering agent is to prevent a rapid change in pH when acids or bases are added to the solution.Buffering agents have variable properties some are more soluble than others; some are acidic while other are basic.
As pH managers, they are important in many chemical applications, including agriculture,food processing, biochemistry and medicine.

-some proteins have adsorption against pH indicator
-pH indicators have difference colors by proteins adsorption.

-Some alkaloids have adsorption against pH indicator
-pH indicator have difference colors by proteins adsorption

-Salt error is occurred when high salt concentration
-Alcohol error : alcohol,mixed liquid of organic solvent,high concentration solvent
-Unavailable for measurement when the temperature of test liquid is high
-Unavailable for measurement when solvent has much oxidation and deoxidation in it