pH Paper and Buffers
Honeywell Fluka™ Buffer solution pH 13.0 (20°C), Glycine / sodium hydroxide / sodium chloride solution, Honeywell Fluka™
Glycine / sodium hydroxide / sodium chloride solution X6 Buffer solution pH 13.0 (20oC) glycine / sodium hydroxide / sodium chloride solution
Fisherbrand™ Traceable™ One-Shot pH Buffer Standards (CRM)
Provides the most accurate pH standards available anywhere. Fisherbrand™ Traceable™ One-Shot pH Buffer Standards (CRM) is 100% compatible with all makes and instruments. Traceable CRM pH Asst Pack, One-Shot
SI Analytics™ Standard Buffer Solution pH 4.01
DIN BUFFER SOLUTION PH = 4.01 ST
Mettler Toledo™ Buffer Solution Pack pH 4.01, 7.00, 9.21
BUFFER SOL PH=401/7,00/921 20ML
Fisherbrand™ Traceable™ pH Buffer Standards, Certified Reference Material (CRM), Fisher Scientific™
IUPAC formulation X6 pH standard Fisherbrand pH4, single use, certif
Lovibond™ Powder Packs™ for Total Chlorine
Premeasured unit dose DPD reagents for water quality testing X1000 POWDER VARIO CHLORINE TOTAL DPD 10ML
Buffer solution pH 5, Acetate buffer, ACROS Organics™
1LT Buffer solution pH 5, Acetate buffer
Alfa Aesar™ Glycylglycine, 0.2M buffer soln., pH 8.0
CAS: 556-50-3 Molecular Formula: C4H8N2O3 Molecular Weight (g/mol): 132.119 MDL Number: MFCD00008130 InChI Key: YMAWOPBAYDPSLA-UHFFFAOYSA-N PubChem CID: 11163 ChEBI: CHEBI:17201 IUPAC Name: 2-[(2-aminoacetyl)amino]acetic acid SMILES: C(C(=O)NCC(=O)O)N 100ML Glycylglycine, 0.2M buffer soln., pH 8.0 100ml
Alfa Aesar™ Borate, 0.5M buffer soln., pH 9.5
CAS: 1330-43-4 MDL Number: MFCD00163147 250ML Borate, 0.5M buffer soln., pH 9.5 250ml
Alfa Aesar™ Sodium bicarbonate, 1M buffer soln., pH 10.0
CAS: 144-55-8 Molecular Formula: CHNaO3 Molecular Weight (g/mol): 84.006 MDL Number: MFCD00003528 InChI Key: UIIMBOGNXHQVGW-UHFFFAOYSA-M PubChem CID: 516892 ChEBI: CHEBI:32139 IUPAC Name: sodium;hydrogen carbonate SMILES: C(=O)(O)[O-].[Na+] 250ML Sodium bicarbonate, 1M buffer soln., pH 10.0 250ml
Alfa Aesar™ Sodium phosphate, 0.2M buffer soln., pH 7.6
1LT Sodium phosphate, 0.2M buffer soln., pH 7.6 1l
Thermo Scientific™ Orion™ pH Buffer Bottles
Perform accurate, reproducible pH calibrations with color-coded Thermo Scientific™ Orion™ pH Buffer Bottles. PH 9.18 BUFFER 475ML
Buffer Solution, pH 10, ACROS Organics™
500ML Buffer solution pH 10, Carbonate buffer
Alfa Aesar™ TEA, 0.2M buffer soln., pH 8.0
CAS: 102-71-6 Molecular Formula: C6H15NO3 Molecular Weight (g/mol): 149.19 MDL Number: MFCD00002855 InChI Key: GSEJCLTVZPLZKY-UHFFFAOYSA-N Synonym: Triethanolamine buffer solution PubChem CID: 7618 ChEBI: CHEBI:28621 IUPAC Name: 2-[bis(2-hydroxyethyl)amino]ethanol SMILES: C(CO)N(CCO)CCO 500ML TEA, 0.2M buffer soln., pH 8.0 500ml
Alfa Aesar™ Sodium borate, 0.5M buffer soln., pH 9.0
CAS: 1330-43-4 MDL Number: MFCD00081185 250ML Sodium borate, 0.5M buffer soln., pH 9.0 250ml
Alfa Aesar™ Sodium phosphate, 0.2M buffer soln., pH 8.0
1LT Sodium phosphate, 0.2M buffer soln., pH 8.0 1l
Alfa Aesar™ Maleate, 0.2M buffer soln., pH 6.0
CAS: 3105-55-3 Molecular Formula: C4H9NaO7 Molecular Weight (g/mol): 192.099 MDL Number: MFCD00012466 InChI Key: VOWLSUZYJXDGNJ-SQDRRJMKSA-M PubChem CID: 91658932 IUPAC Name: sodium;(Z)-4-hydroxy-4-oxobut-2-enoate;trihydrate SMILES: C(=CC(=O)[O-])C(=O)O.O.O.O.[Na+] 250ML Maleate, 0.2M buffer soln., pH 6.0 250ml
Buffer, Precision Reference Standard, pH 10.000 (Color Coded Blue), Ricca Chemical
Standardized against NIST-certified pH references. High-Accuracy pH Buffer solutions are for use with meters with 0.001 resolution. 500ML BUFFER PH 10,00
Fisherbrand™ Traceable™ ISO Guide 34 Color-Coded CRM pH Buffers (Certified Reference Material)
Performs accurate, reproducible pH calibrations with color-coded bottles. Fisherbrand™ Traceable, Color-Coded buffers are Certified Reference Material pH Buffers.Compatible with all makes of pH instruments and electrodes. 500ML Traceable CRM pH 4.005, Red
Alfa Aesar™ Sodium citrate, 0.5M buffer soln., pH 5.5
500ML Sodium citrate, 0.5M buffer soln., pH 5.5 500ml
Alfa Aesar™ TN buffer soln.
1LT TN buffer soln.
Thermo Scientific™ Orion™ pH Buffer Individual Use Pouches
Ensure fresh, ready to use standards for pH calibration with Thermo Scientific™ Orion™ pH Buffer Individual Use Pouches. X10 pH 7.00 buffer pouches, Thermo Scientific
Alfa Aesar™ Maleate, 0.2M buffer soln., pH 5.5
CAS: 3105-55-3 Molecular Formula: C4H9NaO7 Molecular Weight (g/mol): 192.099 MDL Number: MFCD00012466 InChI Key: VOWLSUZYJXDGNJ-SQDRRJMKSA-M PubChem CID: 91658932 IUPAC Name: sodium;(Z)-4-hydroxy-4-oxobut-2-enoate;trihydrate SMILES: C(=CC(=O)[O-])C(=O)O.O.O.O.[Na+] 500ML Maleate, 0.2M buffer soln., pH 5.5 500ml
Alfa Aesar™ Bicarbonate, 1M buffer soln., pH 9.0
CAS: 144-55-8 Molecular Formula: CHNaO3 Molecular Weight (g/mol): 84.006 MDL Number: MFCD00003528 InChI Key: UIIMBOGNXHQVGW-UHFFFAOYSA-M PubChem CID: 516892 ChEBI: CHEBI:32139 IUPAC Name: sodium;hydrogen carbonate SMILES: C(=O)(O)[O-].[Na+] 500ML Bicarbonate, 1M buffer soln., pH 9.0 500ml
Alfa Aesar™ Succinate, 0.2M buffer soln., pH 4.5
CAS: 150-90-3 Molecular Formula: C4H4Na2O4 Molecular Weight (g/mol): 162.052 MDL Number: MFCD00002789 InChI Key: ZDQYSKICYIVCPN-UHFFFAOYSA-L PubChem CID: 9020 ChEBI: CHEBI:63675 IUPAC Name: disodium;butanedioate SMILES: C(CC(=O)[O-])C(=O)[O-].[Na+].[Na+] 500ML Succinate, 0.2M buffer soln., pH 4.5 500ml
Alfa Aesar™ Sodium phosphate, 0.2M buffer soln., pH 9.0
1LT Sodium phosphate, 0.2M buffer soln., pH 9.0 1l
Alfa Aesar™ ColorpHast™ Narrow pH Strips
COLORPHAST PH STRIPS 4-7 PH RANGE 6UNITS
Lovibond™ Powder Packs™ for Free Chlorine
Premeasured unit dose DPD reagents for water quality testing X1000 POWDER VARIO CHLORINE FREE DPD 5 ML
Thermo Scientific™ Orion™ pH Buffer Cubitainers™
Hold 5 gallons (19L) of pH buffer in color-coded Thermo Scientific™ Orion™ pH Buffer Cubitainers™ with easy-pour spigot. PH 7.00 BUFFER CUBITAINER 19L
Lovibond™ PD250 Reagent Dispenser Refill: DPD Total Chlorine
For use with SC450 Chlorine and pH colorimeter, MC500 colorimeter and SP600 spectrophotometer 2 x 250 TESTS VARIO POWDER TOTAL CHLORINE 10 ML
pH papers, pH strips, pH sticks and pH test kits are used in laboratory, industrial and educational environments to qualitatively assess pH levels or monitor acid-base titrations in a range of sample types. pH buffer reference standards are used for the accurate calibration of pH meters and monitors for far more precise and quantitative pH measurement.
pH test papers are supplied either as rolls, tear-off strips, or sticks. They are impregnated with indicator dyes which change colour when dipped into the solution under test. In some products, the indicator dyes are covalently linked to the cellulose fibres to avoid bleed-out (leaching) and contamination of the test samples.
Some pH papers indicate simple acid or base conditions with a single red-blue colour change (also called litmus papers). Universal pH papers and strips contain a mix of indicator dyes which cover a range of pH values up to and including 0 to 14 in a single test. The observed colour change is checked against a comparison chart normally supplied with the papers.
Alternatively, for accurate assessment of pH, standard (reference) pH buffers are manufactured to very high degrees of precision and are used for the quantitative calibration of pH meters, electrodes and other electrochemical sensors. Standard buffers are:
- Typically supplied at fixed values of pH4.01, pH7.00 and pH10.01
- May be colour-coded for easy and quick identification
- Certified to their nominal pH and accuracy at a specified temperature (typically 20°C)
- Supplied as ready-to-use solutions or concentrates
- Contain antifungals for extended shelf life