Accurate calibration of the pH meter is critical to many processes in any lab.  Lab Procurement Services can provide buffers to suit virtually any application at an affordable price - pH 1 or 11, 55 gallon drum or 20mL single-use foil pack, or any pH or size in between, we have you covered!

Visit our Electrochemistry equipment category, and Beakers, Flasks, and Sampling Supplies sections for other great values on lab supplies you may need.  Contact us with any questions or assistance.

pH Buffers

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  1. Buffer Solution, pH 10.00 +/-0.02 @ 25 DEG C, Reference Standard, 500mL
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 10.00 +/-0.02 @ 25 DEG C, Reference Standard are solutions mainly utilized to keep pH at a constant value in a variety of chemical applications. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.

    (6 per CS )
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    was $263.35 Special Price $214.28
  2. Buffer, Hydrion(R), Dry, pH 7.40 +/- 0.02
    Manufacturer: Spectrum Chemical
    Buffer, Hydrion(R), Dry, pH 7.40 +/- 0.02 (1 per EA )
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    $109.45
  3. Buffer Solution, pH 7.00 +/- 0.01 @ 25 DEG C, Reference Standard
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 7.00 +/- 0.01 @ 25 DEG C, Reference Standard is an inorganic solution in water. Spectrum solutions utilize the highest quality raw materials appropriate to your product. Most raw materials meet or exceed the specifications established by the American Chemical Society. Where appropriate, many finished products are traceable to NIST Standard Reference Materials. Manufacturing, quality control testing, and packaging are all performed in Spectrum's own facilities. Record keeping and sample retention of all produced lots ensure product consistency and complete traceability.

    (1 per EA )
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    was $292.50 Special Price $238.00
  4. Buffer Solution Concentrate, pH 4.00 +/- 0.02 @ 25 DEG C
    Manufacturer: Spectrum Chemical
    Buffer Solution Concentrate, pH 4.00 +/- 0.02 @ 25 DEG C - Spectrum's Buffer Solution Concentrates when diluted as directed will yield a pH 4.00 SOLUTION. Spectrum Buffer Solution Concentrates are relied upon for cost effective, fast, accurate results in life sciences and pharmaceutical quality control applications.

    (1 per EA )
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    was $215.40 Special Price $175.27
  5. Buffer Solution, pH 10.00 +/-0.02 @ 25 DEG C, Reference Standard, 4L
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 10.00 +/-0.02 @ 25 DEG C, Reference Standard are solutions mainly utilized to keep pH at a constant value in a variety of chemical applications. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.

    (1 per EA )
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    was $141.25 Special Price $114.93
  6. Blue-Ten(TM) Buffer Solution, pH 10.00, (+/-0.01 @ 25 DEG C)Color-coded BLUE, Reference Standard1L
    Manufacturer: Spectrum Chemical
    Blue-Ten (TM) Buffer Solution, pH 10.00, (+/-0.01 @ 25 DEG C)Color-coded BLUE, Reference Standard (1 per EA )
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    was $68.70 Special Price $55.89
  7. Buffer Solution, pH 7.00 +/- 0.01 @ 25 DEG C, Reference Standard
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 7.00 +/- 0.01 @ 25 DEG C, Reference Standard is an inorganic solution in water. Spectrum solutions utilize the highest quality raw materials appropriate to your product. Most raw materials meet or exceed the specifications established by the American Chemical Society. Where appropriate, many finished products are traceable to NIST Standard Reference Materials. Manufacturing, quality control testing, and packaging are all performed in Spectrum's own facilities. Record keeping and sample retention of all produced lots ensure product consistency and complete traceability.

    (1 per EA )
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    was $65.95 Special Price $53.65
  8. Buffer Solution, pH 10.00 +/-0.02 @ 25 DEG C, Reference Standard, 20L
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 10.00 +/-0.02 @ 25 DEG C, Reference Standard are solutions mainly utilized to keep pH at a constant value in a variety of chemical applications. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.

    (1 per EA )
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    was $317.60 Special Price $258.43
  9. Blue-Ten(TM) Buffer Solution, pH 10.00, (+/-0.01 @ 25 DEG C)Color-coded BLUE, Reference Standard20L
    Manufacturer: Spectrum Chemical
    Blue-Ten (TM) Buffer Solution, pH 10.00, (+/-0.01 @ 25 DEG C)Color-coded BLUE, Reference Standard (1 per EA )
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    was $285.40 Special Price $232.23
  10. Buffer Solution, pH 7.00 +/- 0.01 @ 25 DEG C, Reference Standard
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 7.00 +/- 0.01 @ 25 DEG C, Reference Standard is an inorganic solution in water. Spectrum solutions utilize the highest quality raw materials appropriate to your product. Most raw materials meet or exceed the specifications established by the American Chemical Society. Where appropriate, many finished products are traceable to NIST Standard Reference Materials. Manufacturing, quality control testing, and packaging are all performed in Spectrum's own facilities. Record keeping and sample retention of all produced lots ensure product consistency and complete traceability.

    (1 per EA )
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    was $142.70 Special Price $116.11
  11. Buffer Solution Concentrate, pH 10.00, 500mL
    Manufacturer: Spectrum Chemical
    Buffer Solution Concentrate, pH 10.00 - Spectrum's Buffer Solution Concentrates when diluted as directed will yield a pH 10.00 SOLUTION. Spectrum Buffer Solution Concentrates are relied upon for cost effective, fast, accurate results in life sciences and pharmaceutical quality control applications.

    (6 per CS )
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    was $1,208.80 Special Price $983.60
  12. Buffer Solution, pH 10.00 +/-0.02 @ 25 DEG C, Reference Standard, 1L
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 10.00 +/-0.02 @ 25 DEG C, Reference Standard are solutions mainly utilized to keep pH at a constant value in a variety of chemical applications. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.

    (1 per EA )
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    was $78.50 Special Price $63.87
  13. Buffer Solution, pH 1.0, Reference Standardual Chlorine, APHA, 20L
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 1.0, Reference Standard (1 per EA )
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    was $40.75 Special Price $33.16
  14. Blue-Ten(TM) Buffer Solution, pH 10.00, (+/-0.01 @ 25 DEG C)Color-coded BLUE, Reference Standard4L
    Manufacturer: Spectrum Chemical
    Blue-Ten (TM) Buffer Solution, pH 10.00, (+/-0.01 @ 25 DEG C)Color-coded BLUE, Reference Standard (1 per EA )
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    was $134.60 Special Price $109.52
  15. Buffer Solution, pH 1.0, Reference Standard, 1L, CAS# 94-93-9
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 1.0, Reference Standard (1 per EA )
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    was $63.55 Special Price $51.71
  16. Buffer Solution, pH 13.0, Reference Standard, 1L, CAS# 8001-54-5
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 13.0, Reference Standard (1 per EA )
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    was $99.95 Special Price $81.32
  17. Buffer Solution, pH 2.00 +/- 0.02 @ 25 DEG C, Reference Standard
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 2.00 +/- 0.02 @ 25 DEG C, Reference Standard is a mixture of weak acid and its conjugate base in order to prevent changes in the pH of a solution. Buffer solutions let you calibrate any pH tester to ensure accurate readings when measuring pH in water samples and process liquids.

    (1 per EA )
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    was $518.15 Special Price $421.61
  18. Red-Four(TM) Buffer Solution, pH 4.01 +/- 0.01 @ 25 DEG C, Color-coded RED, Reference Standard
    Manufacturer: Spectrum Chemical
    Red-Four (TM) Buffer Solution, pH 4.01 +/- 0.01 @ 25 DEG C, Color-coded RED, Reference Standard (1 per EA )
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    was $285.40 Special Price $232.23
  19. Buffer Solution, pH 1.68 +/- 0.02 @ 25 DEG C, Reference Standard
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 1.68 +/- 0.02 @ 25 DEG C, Reference Standard is an inorganic solution in water. Spectrum solutions utilize the highest quality raw materials appropriate to your product. Most raw materials meet or exceed the specifications established by the American Chemical Society. Where appropriate, many finished products are traceable to NIST Standard Reference Materials. Manufacturing, quality control testing, and packaging are all performed in Spectrum's own facilities. Record keeping and sample retention of all produced lots ensure product consistency and complete traceability.

    (1 per EA )
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    was $358.25 Special Price $291.51
  20. Yellow-Seven(TM) Buffer Solution, pH 7.00 (+/-0.01 @ 25 DEG C), Color-coded Yellow, Reference Standard
    Manufacturer: Spectrum Chemical
    Yellow-Seven (TM) Buffer Solution, pH 7.00 (+/-0.01 @ 25 DEG C), Color-coded Yellow, Reference Standard is an inorganic solution in water. Spectrum solutions utilize the highest quality raw materials appropriate to your product. Most raw materials meet or exceed the specifications established by the American Chemical Society. Where appropriate, many finished products are traceable to NIST Standard Reference Materials. Manufacturing, quality control testing, and packaging are all performed in Spectrum’s own facilities. Record keeping and sample retention of all produced lots ensure product consistency and complete traceability.

    (1 per EA )
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    was $285.40 Special Price $232.23
  21. Buffer, Hydrion(R), Dry, pH 2.00 +/- 0.02, 1PC, CAS# 14882-18-9
    Manufacturer: Spectrum Chemical
    Buffer, Hydrion(R), Dry, pH 2.00 +/- 0.02 - This product contains 5 envelopes in glass bottle and each envelope is triple-layered to keep buffer completely dry and free-flowing. Hydrion is a registered trademark of Micro Essential Laboratory, Inc. and is reconstituted to a precise buffer solution by dissolving contents of envelope in 500 mL distilled water.

    (1 per EA )
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    $97.15
  22. Buffer, Hydrion(R), TriChek, Chemenvelope Set
    Manufacturer: Spectrum Chemical
    Buffer, Hydrion(R), TriChek, Chemenvelope Set - The Hydrion Tri-Chek Buffer Chemvelope Calibration Set is perfect for quick and easy pH meter calibration. When mixed with distilled or de-ionized water, Hydrion Buffer Chemvelopes will accurately produce 500 ml of solution at pH 4.00, 7.00 and 10.00. Hydrion Buffers are free flowing soluble powders that prepare clear or color safe solutions in minutes. The set contains three Chemvelopes at pH 4.00, four Chemvelopes at pH 7.00 and three Chemvelopes at pH 10.00. Each Chemvelope produces 500 ml of solution. Included with the set is 1 vial of Hydrion Color Key Buffer Preservative which prolongs the shelf life of the solution and automatically tints each solution to its own color value: orange for ph 4.00, green for ph 7.0 and blue for ph 10.0.

    (1 per EA )
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    $136.80
  23. Buffer Solution, pH 7.00 +/- 0.01 @ 25 DEG C, Reference Standard, 500mL
    Manufacturer: Spectrum Chemical
    Buffer Solution, pH 7.00 +/- 0.01 @ 25 DEG C, Reference Standard is an inorganic solution in water. Spectrum solutions utilize the highest quality raw materials appropriate to your product. Most raw materials meet or exceed the specifications established by the American Chemical Society. Where appropriate, many finished products are traceable to NIST Standard Reference Materials. Manufacturing, quality control testing, and packaging are all performed in Spectrum's own facilities. Record keeping and sample retention of all produced lots ensure product consistency and complete traceability.

    (6 per CS )
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    was $255.30 Special Price $207.73
  24. Yellow-Seven(TM) Buffer Solution, pH 7.00 (+/-0.01 @ 25 DEG C), Color-coded Yellow, Reference Standard
    Manufacturer: Spectrum Chemical
    Yellow-Seven (TM) Buffer Solution, pH 7.00 (+/-0.01 @ 25 DEG C), Color-coded Yellow, Reference Standard is an inorganic solution in water. Spectrum solutions utilize the highest quality raw materials appropriate to your product. Most raw materials meet or exceed the specifications established by the American Chemical Society. Where appropriate, many finished products are traceable to NIST Standard Reference Materials. Manufacturing, quality control testing, and packaging are all performed in Spectrum’s own facilities. Record keeping and sample retention of all produced lots ensure product consistency and complete traceability.

    (6 per CS )
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    was $243.10 Special Price $197.80
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