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 (228)

Compare Tool

Select up to 3 products

  • 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

  • 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....

  • pH Electrode Solutions

    Thermo Scientific Orion

    Electrode Storage Solution 475 mL plastic bottle pH of solution is 6.2 to 7.4 For short term storage of all electrodes for one day to a week. Electrode Filling Solution Internal filling solution for Ross-type electrodes (3M KCl). In packages of five 60 mL bottles.

  • 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,...

  • 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

  • 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 Solution, pH 7.38

    pH (@ 25°C) 7.38 +/- 0.02 NIST Traceable

  • 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...

  • 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....

  • 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

  • pH Buffer Powders

    Micro Essential

    Triple protective foil envelope of aluminum, polyethylene and paper which keeps the buffers dry and free flowing Makes a precise buffer solution when dissolved in 500 mL of distilled water Five envelopes per package 

  • 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....

  • 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.

  • 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...

Compare Tool

Select up to 3 products