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.

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.

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.

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.

Thermo Scientific™ Orion™ pH Buffer Bottles

Perform accurate, reproducible pH calibrations with color-coded Thermo Scientific™ Orion™ pH Buffer Bottles.

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.

Lovibond™ Powder Packs™ for Free Chlorine

Premeasured unit dose DPD reagents for water quality testing

Lovibond™ PD250 Reagent Dispenser Refill: DPD Free Chlorine and Total Chlorine

For use with SC450 Chlorine and pH colorimeter, MC500 colorimeter and SP600 spectrophotometer

Alfa Aesar™ Maleate, 0.2M buffer soln., pH 6.5

CAS: 676-46-0 Molecular Formula: C4H4Na2O5 Molecular Weight (g/mol): 178.051 MDL Number: MFCD00012466 InChI Key: WPUMTJGUQUYPIV-UHFFFAOYSA-L PubChem CID: 8736 IUPAC Name: disodium;2-hydroxybutanedioate SMILES: C(C(C(=O)[O-])O)C(=O)[O-].[Na+].[Na+]

Lovibond™ Powder Packs™ for Total Chlorine

Premeasured unit dose DPD reagents for water quality testing

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

Alfa Aesar™ Sodium borate, 0.5M buffer soln., pH 8.5

CAS: 1330-43-4 MDL Number: MFCD00081185

Alfa Aesar™ Borate, 0.5M buffer soln., pH 8.5

CAS: 1330-43-4 MDL Number: MFCD00163147

Alfa Aesar™ TEA, 0.2M buffer soln., pH 7.5

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

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.

Alfa Aesar™ Sodium borate, 0.5M buffer soln., pH 8.0

CAS: 1330-43-4 MDL Number: MFCD00081185

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+]

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