--- product_id: 183311089 title: "Red & Blue Litmus Paper Acid/Base Indicator Strips Combo Pack with 200 Strips" brand: "bartovation" price: "R$291" currency: BRL in_stock: true reviews_count: 6 category: "Bartovation" url: https://www.desertcart.com.br/products/183311089-red-and-blue-litmus-paper-acid-base-indicator-strips-combo store_origin: BR region: Brazil --- # pH range 0-14, ACS standard compliant 200 pre-cut strips for extensive testing Dual red & blue strips for instant acid/base ID Red & Blue Litmus Paper Acid/Base Indicator Strips Combo Pack with 200 Strips **Brand:** bartovation **Price:** R$291 **Availability:** ✅ In Stock ## Summary > 🔬 Master pH testing with zero hassle—be the lab hero everyone envies! ## Quick Answers - **What is this?** Red & Blue Litmus Paper Acid/Base Indicator Strips Combo Pack with 200 Strips by bartovation - **How much does it cost?** R$291 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/183311089-red-and-blue-litmus-paper-acid-base-indicator-strips-combo) ## Best For - bartovation enthusiasts ## Why This Product - Trusted bartovation brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Educators:** 4.5-star rated and ACS specification compliant, making it the go-to tool for science teachers and labs. - • **Cost-Effective & Durable:** High-quality polyethylene and polystyrene materials ensure reliable results and long-lasting use within budget. - • **Effortless STEM Engagement:** Hands-on, reagent-free testing that empowers student-led inquiry and real-time chemical identification. - • **Classroom-Ready Chemistry Kit:** 200 strips in 2 portable vials—perfect for multiple experiments and group learning sessions. - • **Instant Acid/Base Confirmation:** Dual-strip system eliminates guesswork—red turns blue for bases, blue turns red for acids, no color chart needed. ## Overview Bartovation’s Red & Blue Litmus Paper Combo Pack offers 200 pre-cut strips in two portable vials, designed for quick, accurate acid/base identification without external reagents or color charts. Ideal for STEM education from middle school to college, these ACS-compliant strips cover the full pH range (0-14) and provide a reliable, cost-effective solution for classroom experiments and chemical testing. ## Description Product Description Essential STEM Laboratory Tool for Chemistry & Science Education Perfect for Classroom Learning Bartovation Litmus Paper provides hands-on chemistry experience for students from middle school through college level. With 100 strips per vial (200 total), there's enough for multiple class periods and experiments, making it cost-effective for educational budgets. One Tool — Endless Classroom Experiments Acids vs Bases Demonstration Household liquids comparison Neutralization Reactions Observe pH change during reactions Chemical Identification Exercises Unknown solution testing STEM Inquiry Labs Student-led investigations Quick, Accurate Results in 3 Simple Steps Step 1 - Remove test strip Be careful not to touch the strip anywhere other than where you grasp it. Our litmus paper conforms to A.C.S. specifications. Step 2 - Dip Dip for 1–2 seconds. No color charts or calibration required. The red test strip will turn blue in seconds if dipped into a solution that is a base (pH>7), and will remain unchanged if not. Step 3 - Confirm The blue test strip will turn red in seconds if dipped into a solution that is an acid (pH<7), and will remain unchanged if not. Instant acid/base identification using dual-strip confirmation. Product Technical Specifications Review: Good value for money - Great for science experiments for my kids! They've just started learning chemistry, and this is a very useful product Review: Works Well! - Science teacher approved. ## Features - Comes with 2 portable vials, each filled with easy to use, pre-cut strips - No external reagents or chemicals needed for accurate testing of solutions - A simple way to determine without a doubt if a solution is acidic or basic, with a second test to confirm your findings - No color chart needed to determine findings; these tests are designed for determining if the pH is above or below a certain level NOT giving a precise pH value ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07FW53VJS | | Best Sellers Rank | 60,744 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 128 in pH Test Strips | | Brand | Bartovation | | Country Of Origin | USA | | Customer Reviews | 4.5 out of 5 stars 219 Reviews | | Manufacturer | Bartovation | | Manufacturer Part Number | PLI99K | | Material Type | PE_(Polyethylene), PS_(Polystyrene), Paper | | Model Number | PLI99K | | Number of Packs | 2 | | Recommended Uses For Product | Acidity/Basicity Test in Solutions | | Recommended uses for product | Acidity/Basicity Test in Solutions | | Sterility Rating | 0-14 | | UPC | 649910801217 | | pH range | 0-14 | ## Product Details - **Brand:** Bartovation - **Manufacturer:** Bartovation - **Recommended uses for product:** Acidity/Basicity Test in Solutions - **UPC:** 649910801217 - **pH range:** 0-14 ## Images ![Red & Blue Litmus Paper Acid/Base Indicator Strips Combo Pack with 200 Strips - Image 1](https://m.media-amazon.com/images/I/71nNqRpXeJL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good value for money *by B***A on 22 February 2025* Great for science experiments for my kids! They've just started learning chemistry, and this is a very useful product ### ⭐⭐⭐⭐⭐ Works Well! *by S***N on 23 July 2024* Science teacher approved. ### ⭐⭐⭐⭐⭐ Works well! *by A***R on 21 October 2025* Used these for a pH lab in my science class and they worked just as I needed! Students tested household substances and these strips were accurate. ## Frequently Bought Together - Bartovation Red & Blue Litmus Paper Acid/Base Indicator Strips Combo Pack with 200 Strips - 3 Pack pH.1-14 Test Paper Extensive Test Paper Litmus Test Paper 240 Strips pH Test with Storage Case for Saliva Urine Water Soil Testing Pet Food and Diet pH Monitoring (3 PACK with Storage Case) - 2 Pack pH Test Strips, 160 Strips pH.1-14 Universal pH Test Paper Litmus Test Paper pH Soap Making Testing Strips for Water Wine Saliva Urine Soil Testing Pet Food and Diet pH Monitoring (Sealed Pack) --- ## 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.com.br/products/183311089-red-and-blue-litmus-paper-acid-base-indicator-strips-combo](https://www.desertcart.com.br/products/183311089-red-and-blue-litmus-paper-acid-base-indicator-strips-combo) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-08-18*