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Buffer Solutions

The use of high-quality buffer solutions is essential in order to achieve the best possible results in laboratory tests that require a constant pH value in the test solution. The so-called "buffer systems" (= buffer solutions) have the task of preventing a drastic change of the pH level of the solution when an acid or base is applied. However that indeed would be the case in an unbuffered system.

Buffer solutions are relevant in many fields of application in the laboratory industry. However they are also used frequently in the industrial chemistry, especially electroplating, the manufacture of dyes and for analysis.

In the Analytics-Shop we offer you numerous buffer solutions of excellent quality - feel free to seek advice from our expert team. We will be happy to assist you in choosing the right product.

Items 151-200 of 1031

Product Image of Buffer-XS-box set V, 1 pc
Buffer-XS-box set V, 1 pc
Item number: BK22923.3025
Brand: Bernd Kraft
€83.50
Product Image of Buffer-XS-box set IV, 1 pc
Buffer-XS-box set IV, 1 pc
Item number: BK22922.3025
Brand: Bernd Kraft
€83.50
Product Image of Buffer solution pH 3.8 for the determination of cyanides, 5 l
Buffer solution pH 3.8 for the determination of cyanides, 5 l
Item number: BK22902.5020
Brand: Bernd Kraft
€239.00
Product Image of Buffer solution pH 3.8 for the determination of cyanides, 1 l
Buffer solution pH 3.8 for the determination of cyanides, 1 l
Item number: BK22902.3000
Brand: Bernd Kraft
€103.00
Product Image of Buffer solution pH 12.00 (20 °C), 10 L
Buffer solution pH 12.00 (20 °C), 10 L
Item number: BK22451.6400
Brand: Bernd Kraft
€189.00
Product Image of Buffer solution pH 12.00 (20 °C), 10 L
Buffer solution pH 12.00 (20 °C), 10 L
Item number: BK22451.6000
Brand: Bernd Kraft
€182.00
Product Image of Buffer solution pH 12.00 (20 °C), 5 L
Buffer solution pH 12.00 (20 °C), 5 L
Item number: BK22451.5400
Brand: Bernd Kraft
€138.00
Product Image of Buffer solution pH 12.00 (20 °C), 5 L
Buffer solution pH 12.00 (20 °C), 5 L
Item number: BK22451.5000
Brand: Bernd Kraft
€134.00
Product Image of Buffer solution pH 12.00 (20 °C), 1 L
Buffer solution pH 12.00 (20 °C), 1 L
Item number: BK22451.3060
Brand: Bernd Kraft
€43.60
Product Image of Buffer solution pH 12.00 (20 °C), 1 L
Buffer solution pH 12.00 (20 °C), 1 L
Item number: BK22451.3000
Brand: Bernd Kraft
€39.40
Product Image of Buffer solution pH 12.00 (20 °C) (glycine/sodium hydroxide/sodium chloride) colored blue, traceable to NIST, 500 ml
Buffer solution pH 12.00 (20 °C) (glycine/sodium hydroxide/sodium chloride) colored blue, traceable to NIST, 500 ml
Item number: BK22451.2060
Brand: Bernd Kraft
€34.90
Product Image of Buffer solution pH 12.00 (20 °C), 500 ml
Buffer solution pH 12.00 (20 °C), 500 ml
Item number: BK22451.2000
Brand: Bernd Kraft
€29.40
Product Image of Buffer solution pH 12.00 (20 °C) (glycine/sodium hydroxide/sodium chloride) colored blue, traceable to NIST
Buffer solution pH 12.00 (20 °C) (glycine/sodium hydroxide/sodium chloride) colored blue, traceable to NIST
Item number: BK22451.1060
Brand: Bernd Kraft
€25.60
Product Image of Buffer-XS-box pH 2 (20 °C), 1 pc
Buffer-XS-box pH 2 (20 °C), 1 pc
Item number: BK22439.3025
Brand: Bernd Kraft
€83.50
Product Image of Buffer-XS-box pH 11 (20 °C), 1 pc
Buffer-XS-box pH 11 (20 °C), 1 pc
Item number: BK21863.3025
Brand: Bernd Kraft
€72.20
Product Image of Buffer solution pH 10.0 for the determination of Ca and Mg complexometric method, 5 l
Buffer solution pH 10.0 for the determination of Ca and Mg complexometric method, 5 l
Item number: BK21608.5400
Brand: Bernd Kraft
€230.00
Product Image of Buffer solution pH 10.0 for the determination of Ca and Mg complexometric method, 2.5 l
Buffer solution pH 10.0 for the determination of Ca and Mg complexometric method, 2.5 l
Item number: BK21608.4000
Brand: Bernd Kraft
€162.00
Product Image of Buffer solution pH 10.0 for the determination of Ca and Mg complexometric method, 1l
Buffer solution pH 10.0 for the determination of Ca and Mg complexometric method, 1l
Item number: BK21608.3000
Brand: Bernd Kraft
€121.00
Product Image of Potassium dihydrogen phosphate solution 1/15 mol/l - 1/15 M solution suitable as buffer stock solution, 5L
Potassium dihydrogen phosphate solution 1/15 mol/l - 1/15 M solution suitable as buffer stock solution, 5L
Item number: BK21314.5000
Brand: Bernd Kraft
€237.00
Product Image of Potassium dihydrogen phosphate solution 1/15 mol/l - 1/15 M solution, suitable as buffer stock solution
Potassium dihydrogen phosphate solution 1/15 mol/l - 1/15 M solution, suitable as buffer stock solution
Item number: BK21314.3000
Brand: Bernd Kraft
€89.50
Product Image of Potassium dihydrogen phosphate solution 1/15 mol/l - 1/15 M solution, suitable as buffer stock solution
Potassium dihydrogen phosphate solution 1/15 mol/l - 1/15 M solution, suitable as buffer stock solution
Item number: BK21314.2000
Brand: Bernd Kraft
€64.70
Product Image of Di-Sodium hydrogen phosphate solution 1/15 mol/l - 1/15 M solution, 5L, suitable as buffer stock solution
Di-Sodium hydrogen phosphate solution 1/15 mol/l - 1/15 M solution, 5L, suitable as buffer stock solution
Item number: BK21313.5000
Brand: Bernd Kraft
€175.00
Product Image of di-Sodium hydrogen phosphate solution, 1/15 mol/l - 1/15 M solution, suitable as buffer stock solution
di-Sodium hydrogen phosphate solution, 1/15 mol/l - 1/15 M solution, suitable as buffer stock solution
Item number: BK21313.3000
Brand: Bernd Kraft
€70.40
Product Image of Buffer solution pH 7.2 R Reag. Ph. Eur., Chapter 4.1.3, 1l
Buffer solution pH 7.2 R Reag. Ph. Eur., Chapter 4.1.3, 1l
Item number: BK20920.3000
Brand: Bernd Kraft
€164.00
Product Image of Buffer B, for potentiometric determination of the acid and base number, 250 ml
Buffer B, for potentiometric determination of the acid and base number, 250 ml
Item number: BK20914.1700
Brand: Bernd Kraft
€163.00
Product Image of Buffer B, for potentiometric determination of the acid and base number, 100 ml
Buffer B, for potentiometric determination of the acid and base number, 100 ml
Item number: BK20914.0700
Brand: Bernd Kraft
€97.00
Product Image of Buffer solution pH 4 for determining the phenol index with distillation, 2.5l
Buffer solution pH 4 for determining the phenol index with distillation, 2.5l
Item number: BK20721.4000
Brand: Bernd Kraft
€147.00
Product Image of Buffer solution pH 4 for determining the phenol index with distillation, 1l
Buffer solution pH 4 for determining the phenol index with distillation, 1l
Item number: BK20721.3000
Brand: Bernd Kraft
€97.90
Product Image of Phosphate buffer solution pH 9.0 0.2 (di-potassium hydrogen phosphate), 1l
Phosphate buffer solution pH 9.0 0.2 (di-potassium hydrogen phosphate), 1l
Item number: BK20669.3000
Brand: Bernd Kraft
€214.00
Product Image of Buffer solution pH 6, for titration of fluoride, 5 L
Buffer solution pH 6, for titration of fluoride, 5 L
Item number: BK20584.5400
Brand: Bernd Kraft
€188.00
Product Image of Buffer solution pH 6, for titration of fluoride, 1 L
Buffer solution pH 6, for titration of fluoride, 1 L
Item number: BK20584.3000
Brand: Bernd Kraft
€64.20
Product Image of Buffer solution pH 4.5, suitable for determination of zinc, 5 L
Buffer solution pH 4.5, suitable for determination of zinc, 5 L
Item number: BK20583.5400
Brand: Bernd Kraft
€188.00
Product Image of Buffer solution pH 4.5, suitable for determination of zinc, 1 L
Buffer solution pH 4.5, suitable for determination of zinc, 1 L
Item number: BK20583.3000
Brand: Bernd Kraft
€64.20
Product Image of Buffer solution pH 4 with indicator, for determination of aluminium, 2,5 L
Buffer solution pH 4 with indicator, for determination of aluminium, 2,5 L
Item number: BK20582.4000
Brand: Bernd Kraft
€199.00
Product Image of Buffer solution pH 4 with indicator, for determination of aluminium, 1 L
Buffer solution pH 4 with indicator, for determination of aluminium, 1 L
Item number: BK20582.3000
Brand: Bernd Kraft
€113.00
Product Image of Buffer A, for potentiometric determination of the acid and base number, 250 ml
Buffer A, for potentiometric determination of the acid and base number, 250 ml
Item number: BK20580.1700
Brand: Bernd Kraft
€163.00
Product Image of Buffer A, for potentiometric determination of the acid and base number, 100 ml
Buffer A, for potentiometric determination of the acid and base number, 100 ml
Item number: BK20580.0700
Brand: Bernd Kraft
€97.00
Product Image of Buffer Borate pH 10, for determination of total hardness in tap water, 2,5 L
Buffer Borate pH 10, for determination of total hardness in tap water, 2,5 L
Item number: BK20462.4000
Brand: Bernd Kraft
€170.00
Product Image of Buffer Borate pH 10, for determination of total hardness in tap water, 1 L
Buffer Borate pH 10, for determination of total hardness in tap water, 1 L
Item number: BK20462.3000
Brand: Bernd Kraft
€98.80
Product Image of Buffer-XS-box pH 8 (20 °C), 1 pc
Buffer-XS-box pH 8 (20 °C), 1 pc
Item number: BK19873.3025
Brand: Bernd Kraft
€72.20
Product Image of Buffer-XS-box pH 8 (20 °C), 1 pc
Buffer-XS-box pH 8 (20 °C), 1 pc
Item number: BK19758.3025
Brand: Bernd Kraft
€83.50
Product Image of Buffer-XS-box pH 4 (20 °C), 1 pc
Buffer-XS-box pH 4 (20 °C), 1 pc
Item number: BK19754.3025
Brand: Bernd Kraft
€83.50
Product Image of Buffer-XS-box pH 4 (20 °C), 1 pc
Buffer-XS-box pH 4 (20 °C), 1 pc
Item number: BK19751.3025
Brand: Bernd Kraft
€83.50
Product Image of Buffer-XS-box pH 4 (20 °C), 1 pc
Buffer-XS-box pH 4 (20 °C), 1 pc
Item number: BK19746.3025
Brand: Bernd Kraft
€72.20
Product Image of Buffer-XS-box pH 3 (20 °C), 1 pc
Buffer-XS-box pH 3 (20 °C), 1 pc
Item number: BK19740.3025
Brand: Bernd Kraft
€83.50
Product Image of Buffer-XS-box pH 7 (20 °C), 1 pc
Buffer-XS-box pH 7 (20 °C), 1 pc
Item number: BK19739.3025
Brand: Bernd Kraft
€72.20
Product Image of Buffer-XS-box pH 5 (20 °C), 1 pc
Buffer-XS-box pH 5 (20 °C), 1 pc
Item number: BK19715.3025
Brand: Bernd Kraft
€72.20
Product Image of Buffer-XS-box pH 3 (20 °C), 1 pc
Buffer-XS-box pH 3 (20 °C), 1 pc
Item number: BK19702.3025
Brand: Bernd Kraft
€72.20
Product Image of Buffer-XS-box pH 1 (20 °C), 1 pc
Buffer-XS-box pH 1 (20 °C), 1 pc
Item number: BK19701.3025
Brand: Bernd Kraft
€72.20
Product Image of Ammonium chloride buffer solution pH 7.5 for the determination of NO2-N and NO3-N (CFA/FIA), 500ml
Ammonium chloride buffer solution pH 7.5 for the determination of NO2-N and NO3-N (CFA/FIA), 500ml
Item number: BK19372.2000
Brand: Bernd Kraft
€165.00

Items 151-200 of 1031

Characteristics of the pH

Not only in the laboratory but also in daily life we come across acidic and basic foods, beverages and cosmetics. Apart from largely neutral solutions such as the human saliva, pH values are divided into two areas:

  • Acidosis: denotes a value below the pH value of 7.35. Examples: gastric acid (pH 1.2 to 3.0) & carbon dioxide (pH at about 4.68)
  • Alkalosis: describes a value above pH 4.45. Examples: human blood (pH 7.35 to 7.45) & cosmetic soap (pH between 9 and 10)

Buffer solutions are substances that can avert a drastic change in the pH value after the addition of an acid or base. Suitable buffer solutions are either solutions composed of a weak acid and the alkali metal salt of this acid or mixtures of a weak base and the salt of this base.