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Randhawa-Global Ph Indicators

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RANDHAWA GLOBAL Red and Blue Litmus Paper (range: 1.0 to14.0) Combo, RG-33309 (Pack of 200 Pcs)

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RANDHAWA GLOBAL Red and Blue Litmus Paper (range: 1.0 to14.0) Combo, RG-33309 (Pack of 200 Pcs)

By RANDHAWA GLOBAL

Pack of 200 piece

₹299

RANDHAWA GLOBAL Red and Blue Litmus Paper Combo, RG-33309 (Pack of 200 Pcs) is a simple and widely used tool for measuring the pH (acidity or alkalinity) of a solution. It provides a quick and qualitative assessment of the pH level by changing color in response to the solution's acidity or alkalinity. A Litmus Paper Combo typically consists of two types of litmus paper: blue litmus paper and red litmus paper.
Here's how each type of litmus paper works:
Blue Litmus Paper:
Blue litmus paper is used to test for acidity. When it comes into contact with an acidic solution, it will turn red or change to a shade of red-pink.
If the blue litmus paper remains blue after being dipped into a solution, it indicates that the solution is either neutral or alkaline (basic).
Red Litmus Paper:
Red litmus paper is used to test for alkalinity. When it comes into contact with an alkaline solution, it will turn blue or change to a shade of blue-purple.
If the red litmus paper remains red after being dipped into a solution, it indicates that the solution is either neutral or acidic.
To use litmus paper to test the pH of a solution, follow these steps:
Take a small piece of the appropriate litmus paper (blue for acidity or red for alkalinity).
Dip the litmus paper into the solution you want to test. Ensure that the paper is fully wetted by the solution.
Observe any color change in the litmus paper after a few seconds. Compare the paper's color to the reference scale provided with the litmus paper or to a pH color chart.
Based on the color change, you can determine whether the solution is acidic, alkaline, or neutral. The exact pH value cannot be determined using litmus paper, but you can make a qualitative assessment of its pH status.
Litmus paper combos are commonly used in educational settings, laboratories, and various industries for quick and cost-effective pH testing. While they offer a qualitative assessment of pH, they are not as precise as pH meters or pH indicators, which can provide numerical pH values. Nevertheless, litmus paper is a valuable tool for initial pH screening and can be a useful indicator of whether a solution falls within the acidic, neutral, or alkaline pH range.

RANDHAWA GLOBAL pH Testing Strips 1-14 pH for Chemistry Labs, RG-1503 (Pack of 100 Pcs)

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RANDHAWA GLOBAL pH Testing Strips 1-14 pH for Chemistry Labs, RG-1503 (Pack of 100 Pcs)

By RANDHAWA GLOBAL

Pack of 100 piece

₹349

RANDHAWA GLOBAL pH Testing Strips 1-14 pH for Chemistry Labs, RG-1503 (Pack of 100 Pcs) is a measure of its pH. Common pH indicators used in strips include litmus, bromothymol blue, phenolphthalein, and methyl orange.
Color Chart: A pH color chart or color scale accompanies the pH strips. This chart displays a range of colors corresponding to different pH values. Users compare the color of the strip after dipping it into the test solution with the color chart to determine the pH of the solution.
Paper or Plastic Substrate: The indicator chemicals are applied to a paper or plastic substrate, which serves as the structural material of the strip. The choice of substrate can affect the speed and accuracy of the pH measurement.
Graduated pH Scale: Some pH strips feature a graduated pH scale directly on the strip itself, allowing for a more precise estimation of pH within a specific range.
Using pH testing strips typically involves the following steps:
Collect a small sample of the liquid you want to test.
Dip the pH strip into the liquid for a few seconds or follow the manufacturer's recommended immersion time.
Remove the strip from the liquid and allow it to air dry briefly.
Compare the color of the strip with the provided pH color chart. The closest match on the chart indicates the pH level of the tested solution.
Applications of pH testing strips include:
Testing the pH of swimming pool water to ensure proper chemical balance.
Monitoring the pH of aquarium water for the health of aquatic organisms.
Quality control in food and beverage production to maintain product consistency.
Analyzing the pH of soil in agriculture and horticulture to assess suitability for plant growth.
Clinical diagnostics, such as urine and saliva pH testing, for health assessment.
While pH testing strips provide a quick and convenient way to estimate pH, it's essential to recognize their limitations. They offer qualitative, not quantitative, results and may have a limited pH range. For precise and quantitative pH measurements, laboratory-grade pH meters are preferred. Nonetheless, pH testing strips are valuable tools for quick and on-the-spot pH assessments in various settings.

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Top Selling Randhawa-Global Ph Indicators Products Price List for March 2026

Product Name	Expected Price	Dispatch Time	Discount
3M Comply Steam Chemical Indicator Strips 1250	₹5,669	5 days	--
Whatman Ph Indicator Paper Reel Range 0.5 to 5.5 Size 7mmx5m 2600-101A	₹3,989	12 days	--

This data was last updated on 17/03/2026

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