--- product_id: 459546481 title: "RG -Combo Pack of 100 Blue and 100 Red Litmus Papers for Testing Acid and Base Solutions, Activity Laboratory Industrial Scientific Experiment" brand: "randhawa global" price: "€ 5.65" currency: EUR in_stock: false reviews_count: 5 url: https://www.desertcart.gr/products/459546481-rg-combo-pack-of-100-blue-and-100-red-litmus store_origin: GR region: Greece --- # pH range 4.5-8.5 qualitative test 100 Red strips for acidic detection 100 Blue strips for alkaline detection RG -Combo Pack of 100 Blue and 100 Red Litmus Papers for Testing Acid and Base Solutions, Activity Laboratory Industrial Scientific Experiment **Brand:** randhawa global **Price:** € 5.65 **Availability:** ❌ Out of Stock ## Summary > 🔬 Test smarter, not harder — stay ahead with every drop! ## Quick Answers - **What is this?** RG -Combo Pack of 100 Blue and 100 Red Litmus Papers for Testing Acid and Base Solutions, Activity Laboratory Industrial Scientific Experiment by randhawa global - **How much does it cost?** € 5.65 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/459546481-rg-combo-pack-of-100-blue-and-100-red-litmus) ## Best For - randhawa global enthusiasts ## Why This Product - Trusted randhawa global brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted Quality:** Top 15 pH test strips with 4.0-star rating for reliability - • **Compact & Convenient:** Lightweight 100g pack fits easily in any kit or drawer - • **Dual-Color Precision:** 200 strips split evenly for clear acid/base distinction - • **Versatile Application:** Ideal for labs, classrooms, and everyday pH checks - • **Instant Visual Feedback:** Color change reveals acidity or alkalinity in seconds ## Overview This RG Combo Pack includes 100 blue and 100 red litmus paper strips designed for quick, qualitative pH testing within a 4.5 to 8.5 range. Perfect for educational, laboratory, and household use, these lightweight paper strips provide instant color-coded results to identify acidic, basic, or neutral solutions, making them an essential tool for professionals and students alike. ## Description Litmus paper doesn't have a precise numerical scale; instead, it shows a color change to indicate acidity or alkalinity. Red litmus paper turns blue in a basic (alkaline) solution, and blue litmus paper turns red in an acidic solution. A solution is neutral if the litmus paper color does not change. The colors are interpreted against the standard pH scale, where values below 7 are acidic, 7 is neutral, and values above 7 are alkaline. How the Litmus Test Works 1. Acidic Test: Dip a piece of red litmus paper into the solution. If it remains red, the solution is acidic or neutral. Dip a piece of blue litmus paper. If it turns red, the solution is acidic. 2. Basic Test: Dip a piece of blue litmus paper into the solution. If it remains blue, the solution is basic or neutral. Dip a piece of red litmus paper. If it turns blue, the solution is basic (alkaline). 3. Neutral Test: If neither red nor blue litmus paper changes color, the solution is neutral. Interpreting the Results Acidic Solution: Causes red litmus paper to turn blue. Basic Solution: Causes blue litmus paper to turn red. Neutral Solution: Causes no color change in either red or blue litmus paper. Litmus Paper Limitations Litmus paper has a limited pH range, generally between 4.5 and 8.5. It only provides a qualitative (acidic/basic/neutral) indication, not a specific numerical pH value like a universal indicator or pH meter can litmus paper strips 100 blue strips and 100 red strips, acid base indicator strips for testing acid and base solutions,fun and learn activity for school,home and education institute experiment ## Features - Package Contents: Blue Litmus paper 100 Strips, Red Litmus paper 100 Strips - How the Litmus Test Works 1. Acidic Test: Dip a piece of red litmus paper into the solution. If it remains red, the solution is acidic or neutral. Dip a piece of blue litmus paper. If it turns red, the solution is acidic. 2. Basic Test: Dip a piece of blue litmus paper into the solution. If it remains blue, the solution is basic or neutral. Dip a piece of red litmus paper. If it turns blue, the solution is basic (alkaline). 3. Neutral Test: If neither red nor blue litmus paper changes color, the solution is neutral. - There is a strong correlation between the pH of the body's internal environment and pH paper help you to maintain good healthy body by testing many usual everyday substances, including moisturized soap, lemon juice, milk, liquid detergent, moisturized soil, saliva, urine, sweat etc. - Easy to use, Ideal for all School, College and laboratories. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0B91XW7HR | | Best Sellers Rank | #5,203 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #11 in pH Test Strips | | Brand Name | Randhawa Global | | Country Of Origin | India | | Customer Reviews | 4.0 4.0 out of 5 stars (64) 4.0 out of 5 stars | | Item Type Name | Testing strips, Paper | | Item Weight | 100 Grams | | Manufacturer | Randhawa Global | | Manufacturer Part Number | RG-33309 | | Material Type | Paper | | Model Number | 100 Blue and 100 Red Litmus Paper | | Number Of Items | 200 | | Number Of Packs | 2 | | Packer Contact Information | Randhawa Global, Ambala cantt-133001, Tel: 9896892021 | | Recommended Uses For Product | Testing pH levels of solutions, liquids, and substances for educational purposes, experiments, and household uses | | Sterility Rating | 4.5 -8.5 | | Unit Count | 1 Set | | Whats In The Box | Litmus Test Paper, Strips | ## Product Details - **Brand:** Randhawa Global - **Ph Range:** 4.5 -8.5 - **Recommended Uses For Product:** Testing pH levels of solutions, liquids, and substances for educational purposes, experiments, and household uses - **Net Quantity:** 1 Set - **Manufacturer:** Randhawa Global ## Images ![RG -Combo Pack of 100 Blue and 100 Red Litmus Papers for Testing Acid and Base Solutions, Activity Laboratory Industrial Scientific Experiment - Image 1](https://m.media-amazon.com/images/I/71-iWppzlmL.jpg) ## Available Options This product comes in different **Model** options. ## Customer Reviews ### ⭐⭐⭐⭐ Quality product with container to safe usage *by on Reviewed in India 3 July 2026* Good quality as well as package. ### ⭐⭐⭐⭐ Quality *by on Reviewed in India 25 September 2025* Good. I ### ⭐ Ok *by on Reviewed in India 19 December 2025* Ok ## Frequently Bought Together - RG -Combo Pack of 100 Blue and 100 Red Litmus Papers for Testing Acid and Base Solutions, Activity Laboratory Industrial Scientific Experiment - Konvio Neer Full pH 1-14 Test Indicator Litmus pH Paper, ph Meter, Litmus Paper for Water Testing, Water and Soil testing with 80 Strips, 1-14 Test Indicators, pH Strip(80 Strips) - GLUN® Universal Indicator pH Paper Strips, 0 to 14 Test Indicator Litmus pH Paper, 80 Pieces Strips pack of (1) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/459546481-rg-combo-pack-of-100-blue-and-100-red-litmus](https://www.desertcart.gr/products/459546481-rg-combo-pack-of-100-blue-and-100-red-litmus) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-09-28*