pH Paper and Buffers
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. X25 Buffer sachet PerpHect pH4 (Pack of 25)
Mettler Toledo™ Buffer Solution Pack pH 4.01, 7.00, 9.21
BUFFER SOL PH=401/7,00/921 20ML
Mettler Toledo™ Technical Buffer pH 2
X6 Technical buffer, pH2.00 250mL
WTW™ Electrolytes and Cleaning Solutions
Used as refill solutions for liquid filled electrodes as well as a storage solution for all types of pH electrodes, these electrolytes and cleaning solutions are ideal for operating, storing, and cleaning electrodes. BUFFER KCL-50
Thermo Scientific™ Orion™ Standard All-in-One™ pH Buffer Kit
Work with ease using this color-coded pH buffer kit that includes three buffers, storage solution and a storage bottle. STANDARD ALL-IN-ONE PH BUFFER KIT, THERMO SCIENTIFic Orion, 475mL each of 4.01, 7.00 and 10.01
Hanna Instruments™ pH 4.01 Calibration Buffer Solution Sachets
X25 pH buffer sachet pH 4.01 ready mixed20mL
Hanna Instruments™ pH 7.01 Calibration Buffer Sachets
X25 Buffer solution ready mixed sachets Qty 2520 ml
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, 6.87 and 9.18
pH buffer sol. DIN 19266 and NIST pH 4.01 6.87and 9.18 ampule 20 ml
Hamilton™ DuraCal™ 9.21 Value pH Buffer
500ML DURACAL pH 9.21
Sodium phosphate, 0.2M buffer soln., pH 7.4, Alfa Aesar™
1LT Sodium phosphate, 0.2M buffer soln., pH 7.4 1l
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™ Glycylglycine, 0.2M buffer soln., pH 8.5
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 8.5 100ml
Alfa Aesar™ Sodium bicarbonate, 1M buffer soln., pH 9.4
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 Sodium bicarbonate, 1M buffer soln., pH 9.4 500ml
Thermo Scientific™ Orion™ Total Alkalinity Test Kit
Save time by eliminating additional equipment set-up, titrations and calculations with this total alkalinity test kit that provides two-step direct measurement. TOT ALKALINITY TESTKIT
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+] 500ML Maleate, 0.2M buffer soln., pH 6.0 500ml
Thermo Scientific™ Orion™ pH Buffer Bottles
Perform accurate, reproducible pH calibrations with color-coded Thermo Scientific™ Orion™ pH Buffer Bottles. X5 PH 7.00 BUFFER 60 ML S
Alfa Aesar™ ColorpHast™ Narrow pH Strips
COLORPHAST PH STRIPS 6.5- 10 PH RANGE 1UNIT
Alfa Aesar™ Succinate, 0.2M buffer soln., pH 6.5
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+] 250ML Succinate, 0.2M buffer soln., pH 6.5 250ml
Alfa Aesar™ Sodium phosphate, 0.5M buffer soln., pH 9.0
500ML Sodium phosphate, 0.5M buffer soln., pH 9.0 500ml
Alfa Aesar™ TEA, 0.2M buffer soln., pH 8.5
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 250ML TEA, 0.2M buffer soln., pH 8.5 250ml
Alfa Aesar™ Succinate, 0.2M buffer soln., pH 5.0
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 5.0 500ml
Lovibond™ Powder Packs™ for Total Chlorine
Premeasured unit dose DPD reagents for water quality testing X1000 POWDER VARIO CHLORINE TOTAL DPD 25ML
Buffer solution pH 5, Acetate buffer, ACROS Organics™
1LT Buffer solution pH 5, Acetate buffer
Oakton™ Oakton™ pH Calibration Buffer Bottles
500ML PH BUFFER 12,45
Alfa Aesar™ Borate, 0.5M buffer soln., pH 8.5
CAS: 1330-43-4 MDL Number: MFCD00163147 500ML Borate, 0.5M buffer soln., pH 8.5 500ml
Alfa Aesar™ Sodium phosphate, 0.5M buffer soln., pH 7.6
500ML Sodium phosphate, 0.5M buffer soln., pH 7.6 500ml
Alfa Aesar™ Sodium citrate, 0.5M buffer soln., pH 5.5
250ML Sodium citrate, 0.5M buffer soln., pH 5.5 250ml
Thermo Scientific™ Orion™ ROSS™ All-in-One™ pH Buffer Kit
Maintain pH electrodes more effectively with Thermo Scientific™ Orion™ ROSS™ All-in-One™ pH Buffer Kits. ALL-IN-ONE ROSS PH BUFFER KIT,, 475ML EACH OF4.01, 7.00, 10.01 buffers, ROSS pH electrode
Alfa Aesar™ Glycylglycine, 0.2M buffer soln., pH 7.5
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 250ML Glycylglycine, 0.2M buffer soln., pH 7.5 250ml
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