--- product_id: 494318332 title: "pH Buffer Solution pH 4.00 ph 7.00 ph 9.20 | pH Liquid Calibration at 25°C as per Quality Standards (200 ML)" brand: "labnox" price: "€ 31.80" currency: EUR in_stock: true reviews_count: 8 category: "Labnox" url: https://www.desertcart.es/products/494318332-ph-buffer-solution-ph-4-00-ph-7-00-ph store_origin: ES region: Spain --- # Leak-proof heavy-duty container Stable, ready-to-use liquid formula Precise pH calibration at 25°C pH Buffer Solution pH 4.00 ph 7.00 ph 9.20 | pH Liquid Calibration at 25°C as per Quality Standards (200 ML) **Brand:** labnox **Price:** € 31.80 **Availability:** ✅ In Stock ## Summary > 🧪 Elevate your lab precision—never second-guess your pH readings again! ## Quick Answers - **What is this?** pH Buffer Solution pH 4.00 ph 7.00 ph 9.20 | pH Liquid Calibration at 25°C as per Quality Standards (200 ML) by labnox - **How much does it cost?** € 31.80 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/494318332-ph-buffer-solution-ph-4-00-ph-7-00-ph) ## Best For - labnox enthusiasts ## Why This Product - Trusted labnox brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Leak-Proof Packaging:** Heavy-duty bottles designed to prevent spills during shipping and storage, keeping your workspace pristine. - • **Universal Compatibility:** Works seamlessly with all pH meters and electrodes, making it the go-to choice for professionals. - • **Ready-to-Use Convenience:** No dilution needed—just open and calibrate, saving you valuable lab time. - • **Triple pH Range Coverage:** Includes pH 4.00, 7.00, and 9.20 solutions to cover acidic, neutral, and alkaline calibrations effortlessly. - • **Calibrate with Confidence:** Professionally formulated pH buffers ensure pinpoint accuracy every time you measure. ## Overview Labnox pH Buffer Solution set includes three 200 mL bottles at pH 4.00, 7.00, and 9.20, calibrated at 25°C for reliable accuracy. Ready-to-use and stable, these leak-proof solutions are compatible with all pH meters, ensuring professional-grade calibration for precise and consistent pH measurements. ## Description Using a high-grade buffer to calibrate your meter before each use is the only tried-and-true way to get the most accurate results every time. pH calibration solutions, also called pH buffers, are an essential tool when measuring pH with a pH meter and electrode. While some users will try to make their own solutions to save money, these homemade buffers are not accurate or stable, and in the end they will waste time and interfere with the accuracy of your results.Our Labnox pH buffer is much more stable and is resistant to change. pKa is a number that describes the acidity of a particular molecule. Types of Buffers : Buffers are broadly divided into two types – acidic and alkaline buffer solutions. A pH buffer is an aqueous solution consisting of a weak acid and its conjugate base or vice versa that lets the pH change to be minimal when a small amount of a strong acid or a strong base adds to it. Review: Good product - Worth purchase. Review: Satisfied and working well - Satisfied and working well ## Features - The Labnox pH Buffer Solution is essential for measuring the pH level of any substance with a meter and electrode. - Our pH Calibration Solution is ready to use and does not require dilution. - The product comes in a heavy-duty gallon container. No need to worry about leakage during shipping - Easy Calibration and works with all pH meters - This professionally-made pH buffer is stable and resistant to change, so you can obtain accurate results every time. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BNVF92TG | | Best Sellers Rank | #3,232 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Chemical Buffers | | Brand | Labnox | | Brand Name | Labnox | | Container Type | Bottle | | Country Of Origin | India | | Customer Reviews | 4.2 out of 5 stars 82 Reviews | | Item Form | Liquid | | Item Volume | 200 Millilitres | | Manufacturer | APTEC ENTERPRISES PVT LTD | | Manufacturer Part Number | ph buffer 4.0, 7.0 and 9.2 | | Molecular Weight | 156.01 | | Molecular weight | 156.01 | | Net Quantity | 3.00 Piece | | Package Information | Bottle | | Unit Count | 3.00 Piece | | Volume | 200 Millilitres | | Whats in the box? | ph buffer 4.0, 7.0 and 9.2 | ## Product Details - **Brand:** Labnox - **Item Form:** Liquid - **Item Volume:** 200 Millilitres - **Molecular weight:** 156.01 - **Package Information:** Bottle ## Images ![pH Buffer Solution pH 4.00 ph 7.00 ph 9.20 | pH Liquid Calibration at 25°C as per Quality Standards (200 ML) - Image 1](https://m.media-amazon.com/images/I/619b8Vp+TfL.jpg) ![pH Buffer Solution pH 4.00 ph 7.00 ph 9.20 | pH Liquid Calibration at 25°C as per Quality Standards (200 ML) - Image 2](https://m.media-amazon.com/images/I/61EnM8FwhJL.jpg) ![pH Buffer Solution pH 4.00 ph 7.00 ph 9.20 | pH Liquid Calibration at 25°C as per Quality Standards (200 ML) - Image 3](https://m.media-amazon.com/images/I/61GMp4BSBNL.jpg) ![pH Buffer Solution pH 4.00 ph 7.00 ph 9.20 | pH Liquid Calibration at 25°C as per Quality Standards (200 ML) - Image 4](https://m.media-amazon.com/images/I/717EKPzJ5VL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good product *by M***V on 21 October 2025* Worth purchase. ### ⭐⭐⭐⭐ Satisfied and working well *by P***Y on 15 December 2025* Satisfied and working well ### ⭐⭐⭐⭐⭐ Value for money *by A***R on 4 March 2025* Good product ## Frequently Bought Together - Labnox® pH Buffer Solution pH 4.00 ph 7.00 ph 9.20 | pH Liquid Calibration at 25°C as per Quality Standards (200 ML) - IONIX PH Meter for Water Testing, PH Meter with 6 Buffers Packets of 250 ml each, PH Tester for Water with Auto Calibration Mode, Automatic Temperature Compensation & Big Backlit LCD with Carry Box - Konvio Neer pH Meter Buffer Solution Powder and Easy for Precise pH Calibration Powder Solution,4.01pH, 6.86pH and 9.18pH (Pack of 3) --- ## 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.es/products/494318332-ph-buffer-solution-ph-4-00-ph-7-00-ph](https://www.desertcart.es/products/494318332-ph-buffer-solution-ph-4-00-ph-7-00-ph) --- *Product available on Desertcart Spain* *Store origin: ES* *Last updated: 2026-07-07*