pH Paper and Buffers
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
Mettler Toledo™ Technical pH Buffer Solutions
Provides a reliable all-around pH buffer. Mettler Toledo™ Technical pH Buffer Solution are specified to two decimal places and are traceable to NIST standards. Color-coded solution comes in a handy 250mL plastic bottle with no-fuss labels. 250 ML TECHNICAL BUFFER, PH10.00 250ML
Hamilton™ DuraCal™ 4.01 Value pH Buffer
HAM BUFFER PH4 (VE=3X500ML) *34 238917
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
Hamilton™ DuraCal™ 7.00 Value pH Buffer
HAM BUFFER ph7 3X500ML *36 238918
Oakton™ Oakton™ pH Calibration Buffer Bottles
500ML PH4 BUFFER OAKTON
LaMotte™ Insta-Test™ Single and Multi-Factor Test Strips
For water quality testing Anti-GSTP1
Alfa Aesar™ Sodium phosphate, 0.5M buffer soln., pH 7.0
500ML Sodium phosphate, 0.5M buffer soln., pH 7.0 500ml
Mettler Toledo™ pH Buffer Sachets
BUFFER SOL PH=401/7/10 25°C 20ML
pH 7.00 Buffer Solution at 25°C, Reagecon
Tested, certified, NIST traceable, and shelf-stable buffer solution. 1LT BUFFER SOLUTION PH7.00 0 .01 25°C 1L
pH 10.00 Buffer Solution at 20°C, Reagecon
Tested, certified, NIST traceable, and shelf-stable buffer solution. 5LT BUFFER SOLUTION PH10.00 0.01 20°C 5L
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
GE Healthcare Whatman™ pH Indicator Papers, CF Strips
Provides an extremely clear and accurate visual pH value using four different segments of dye-impregnated indicator papers. Whatman™ pH Indicator Papers, CF Strips use dyes that are chemically bonded to the paper and cannot be leached into solution. X100 PH STRIPS PH4,5 - 10
Hamilton™ DuraCal™ 10.01 Value pH Buffer
DURACAL PH 10.01 500ML
Mettler Toledo™ Buffer Solution Pack pH 4.01, 7.00, 9.21
BUFFER SOL PH=401/7,00/921 20ML
pH 9.21 Technical Color-Coded Buffer Solution at 25°C, Reagecon
Easy-to-use, tested, certified, NIST traceable, and shelf-stable, color-coded buffer solution. 500ML TECHNICAL BUFFER 9.21 9.2
Reagecon™ Laboratory Buffer Solution, pH 9.21, Blue
Designed for use in laboratory pH measurement. Reagecon™ Laboratory Buffer Solution, pH 9.21, Blue is tested at 20°C to an accuracy level of ±0.02. This calibration and control buffer is specially formulated to ensure its stability and is supplied with a detailed Certificate of Analysis. 250ML BUFFER PH 9,21
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
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
GE Healthcare Whatman™ pH Indicators Reel Dispensers
Used for rapid determination of pH values PH INDIC NARROW 6.4-8.0 7MMX5M
GE Healthcare Whatman™ Litmus Blue Test Paper
Impregnated with a mixture of pH indicators, acid-alkali litmus papers assume a color specific to sample pH upon contact with a sample. Whatman™ Litmus Blue Test Paper provides rapid determination of pH values and has a variety of applications in laboratories and industry. X100 Strip, litmus blue pH range 5 to 8
GE Healthcare Whatman™ Acid/Alkali Test Papers
Assumes a color specific to sample pH upon contact with a sample. Whatman™ Acid/alkali Test Papers are impregnated with a mixture of pH indicators. ACID ALKALI LITMUS RED 7MMX5M
Reagecon™ Buffer Solution, pH 10.00, Blue
Certified by an ISO 17025 accredited method and NIST traceable. Reagecon™ Buffer Solution, pH 10.00, Blue is tested at 20°C to an accuracy of ±0.01. This calibration and control buffer is specially formulated to ensure its stability, is color coded and features a twin-neck bottle design. 500ML BUFFER SOLUTION PH10.00 (BLUE) ±0.01 @ 20°C
Honeywell Fluka™ Buffer solution pH 7.0 (20°C), Green colored, potassium dihydrogen phosphate / disodium hydrogen phosphate, with fungicide, Honeywell Fluka™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.046 MDL Number: MFCD00146206 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: azanium;hydroxide SMILES: [NH4+].[OH-] 1LT Buffer solution pH 7.0 (20oC) green colored,
Honeywell Fluka™ Buffer solution pH 4.0 (20°C), Red colored, citric acid / sodium hydroxide / sodium chloride solution, with fungicide, Honeywell Fluka™
CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.046 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N PubChem CID: 14923 ChEBI: CHEBI:18219 IUPAC Name: azanium;hydroxide SMILES: [NH4+].[OH-] X6 Buffer solution pH 4.0 (20oC) red colored, 1L
Reagecon™ Buffer Solution, pH 4.00, Red
Certified by an ISO 17025 accredited method and NIST traceable. Reagecon™ Buffer Solution, pH 4.00, Red is tested at 20°C to an accuracy of ±0.01. This calibration and control buffer is specially formulated to ensure its stability, is color coded and features a twin-neck bottle design. 500ML BUFFER SOLUTION PH4.00 (RED) ±0.01 @ 20°C
Ionic Strength Adjustment Low-Level TISAB II Buffer, SPEX CertiPrep™
Low Level TISAB II Ionic Strength Adjustment Buffer, 500 mL in H2O, SPEX CertiPrep™. ISO Guide 34 Certified, NIST Traceable Certified Reference Materials. Supplied with comprehensive Certificate of Analysis. 500 ML LOWLEV TISAB II BUFFER 8X SPEX CERTIPREP500mL
Mettler Toledo™ Technical Buffer for pH DKD Certified pH 7.00
X6 DKD certified buffer, pH7.00 250mL
Mettler Toledo™ Technical Buffer pH 9.21 Sachets
X30 BUFFER SACHETS PH9.21 (PACK OF 30)
Buffer solution pH 5, Acetate buffer, ACROS Organics™
1LT Buffer solution pH 5, Acetate buffer
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