pH Buffers & Solutions

pH Buffers and pH Test Solutions are essential tools for accurate and reliable pH measurement in various scientific and industrial applications. These solutions, designed to maintain stability across a range of conditions, ensure precise calibration and testing, which is critical for experiments and processes requiring stringent pH control.

Our selection of pH buffers includes specialized options like the pH 13 buffer, ideal for high-alkalinity environments. These pH standards are formulated to deliver consistent results, making them indispensable for pH calibration standard procedures. They come in a variety of sizes and concentrations, ensuring compatibility with different instruments and applications.

Using our pH buffers and solutions, users can achieve precise pH readings, which are crucial for maintaining the integrity of their work. The availability of various pH calibration standards helps set accurate reference points for measurements, enhancing data reliability.

We offer a broad range of pH and buffers, from general-purpose solutions to precise formulations. Whether you need buffers for routine laboratory calibrations or specialized pH test solutions for unique research needs, our products provide dependable performance.

pH Buffers & Solutions

Products (220)

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  • Color-Coded pH Buffer Solutions

    chemForce® (powered by Thomas Scientific)

    Harmonized #: 3822.00.0002|5090 Shelf Life (months): 24 Specific Gravity: 1.00 DOT: Not regulated Physical State: Liquid Flash Point: Not applicable Solubility: Miscible Storage Temperature: Ambient Storage Code: General Traceable to NIST standards

  • Color-Coded pH Buffers

    Standardized and certified traceable to NIST Standard Color-coded for quick reference Accuracy ±0.01 pH at 25°C pH temperature chart, lot numbers and expiration dates on each label pH 4.0 buffer is colored red, 7.0 buffer is yellow or green and 10.0 buffer is blue. Thomas numbers 4120R54,...

  • Traceable® pH Buffer Standards (CRM)

    The most accurate pH Standards available anywhere Certified Reference Material Traceable® Certificate supplied Highest accuracy available Traceable® pH Standards, Certified Reference Materials, are 100% compatible with all instruments and probes. Accuracy for the Traceable® Buffers at...

  • Technical pH Buffers

    Mettler Toledo

    All METTLER TOLEDO calibration and cleaning solutions are available in handy bottles with no-fuss labels. Specialties for specific requirements Using our sachets guarantees fresh solution for every calibration as well as maximum ease of use. Every sachet box comes with a printed certificate. Rely on...

  • pH Buffer Solutions

    AquaPhoenix Scientific

    pH Buffers are manufactured under ISO 9001 quality standards and are NIST-traceable. Induction sealed caps ensure product integrity and decrease the possibility of leaks. Buffers should be used regularly to calibrate your pH meters.

  • Orion® pH Buffers

    Thermo Scientific Orion

    Orion pH buffers are manufactured under ISO 9000 quality standards. Buffers are color-coded for ease of use, packaged with buffer/temperature tables for accurate calibrations and NIST traceability. All-in-One Buffer kit (1233M21) includes pint bottles of 4 (pink), 7 (yellow) and 10 (blue) buffers,...

  • Buffer, Reference Standard, pH 3.00 ± 0.01 at 25°C

    pH made Easy. Everything you need and want in a pH Buffer. NIST Traceability. Consistent, reliable performance. The tightest specification (+/- 0.01 pH unit) on all buffers. Long Expiration dates. Temperature conversion charts for all Buffers up to pH 11. Multiple sizes to fit your usage and budget...

  • Traceable® ph Buffer Standards (CRM), Color Coded

    labForce® (powered by Thomas Scientific)

    The MOST accurate pH Standards available anywhere now color-coded for convenience Traceable® pH Standards, Certified Reference Materials, are 100% compatible with all instruments and probes. Accuracy for the Traceable® Buffer at 25°C is ±0.010 pH—the most precise available....

  • Clear pH Buffer Solutions

    chemForce® (powered by Thomas Scientific)

    Harmonized #: 2806.10.0000|0000 Shelf Life (months): 24 Specific Gravity: 1.00 DOT: Not regulated Appearance: Colorless Physical State: Liquid Flash Point: Not applicable Solubility: Miscible Storage Temperature: Ambient Storage Code: General

  • Color-Coded pH Buffer Solution Set

    chemForce® (powered by Thomas Scientific)

    Size: 3 x 500 mL Harmonized #: 3822.00.0002|5090 Shelf Life (months): 24 Specific Gravity: 1.00 DOT: Not regulated Appearance: Color coded Physical State: Liquid pH: 4, 7, 10 Flash Point: Not applicable Solubility: Miscible Storage Temperature: Ambient Storage Code: General

  • Traceable® ColorCode pH One-Shot™ Assorted

    labForce® (powered by Thomas Scientific)

    The MOST accurate pH Standards available anywhere now color-coded for convenience Traceable® pH Standards, Certified Reference Materials, are 100% compatible with all instruments and probes. Accuracy for the Traceable® Buffer at 25°C is ±0.010 pH—the most precise available....

  • pH Buffer Solutions

    Choose from economical solution bottles or individually sealed pH buffer pouches. NIST traceable materials Labeled with pH vs. temperature tables for accurate calibration All Oakton pH buffer solutions are freshness dated, and standardized against NIST-traceable references to ensure quality....

  • High-Accuracy pH Buffer Solutions

    pH Calibration buffers for tight tolerances For meters with 0.001 resolution Buffers are color-coded for easy visual identification.

  • Buffer solution pH 10.00

    109409 Buffer solution pH 10.00 (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 10.00 (25°C) Certipur®

  • Reference Color Standard No. 7, ASTM D 848
  • Fluka Buffer solution pH 9.0 (20oC) borax / hydrochloric acid, traceable to SRM from NIST

    Chemical name: Buffer solution pH 9.0 (20 °C) Chemical synonyms: Sodium tetraborate buffer solution Density (g/cm3): 1.02 Chemical purity: =99.8% UN Number:

  • Buffer solution pH 4.01

    109406 Buffer solution pH 4.01 (Potassium hydrogen phthalate), traceable to SRM from NIST and PTB pH 4.01 (25°C) Certipur®

  • Buffer, Precision Reference Standard, pH 4.000 ± 0.002 at 25°C (Color Coded Red)

    Need even tighter tolerances? Our precision line of pH Buffers has tolerances of +/- 0.005 pH unit or BETTER. Specially selected containers and proprietary manufacturing processes lead to the most accurate Buffers on the market. Tested in an ISO 17025 Accredited Laboratory.

  • Buffer, pH 7.00, Clear, Standardized

    Composition: Water 98.73%, Sodium Phosphate Dibasic 0.79%, Potassium Dihydrogen Phosphate 0.47%, Sodium Azide 0.01% Boiling Point: Approximately 100°C Density: 1 Melting Point: Approximately 0°C Color: Colorless liquid Physical State: Liquid pH Range: 7 Solubility Information: Miscible Shelf Life:...

  • Buffer solution pH 7.00

    (potassium dihydrogen phosphate/di-sodium hydrogen phosphate), traceable to SRM from NIST and PTB pH 7.00 (25°C) Certipur®

  • Fluka Buffer solution pH 9.180 (25oC) with fungicide, according to DIN 19266

    Chemical name: Buffer solution pH 9.180 (25°C) Density (g/cm3): 1 UN Number:

  • Buffer, pH 10.00 - Color Coded Blue

    Standardized against NIST certified pH 6.86 and 10.01 reference samples

  • PCR Certified Water, DNase/RNase Tested, Sterile

    PCR Certified Water. 50 mL Tubes, 25-Pack, DNase/RNase Tested, Sterile.

  • Fluka Buffer concentrate pH 13.00 for 500 ml buffer solution,  glycine / sodium hydroxide / sodium chloride solution

    Chemical name: Buffer concentrate pH 13.00 Chemical purity: 99.0-100.5% UN Number: UN 1824

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