pH Paper and Buffers
Hanna Instruments™ pH 7.01 Technical Calibration Buffer Sachets
BUFFER SOLUTION PH7 HI50007-02
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
Reagecon™ Laboratory Buffer Solution, pH 4.01, Red
Designed for use in laboratory pH measurement. Reagecon™ Laboratory Buffer Solution, pH 4.01, Red 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 4,01
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 pH10 (Pack of 25)
Mettler Toledo™ pH Buffer Sachets
X30 BUFFER SOLUTION PH SACHETS PH 10.00 20ML(pack of 30)
WTW™ TPL 4 Model Buffer Solution pH 4
250ML 4,01 BUFFER SOLUTION
Redox Buffer, 220mV, Reagecon™
Used for testing, calibration and verification of redox/ORP sensors. Redox Buffer, 220mV, Reagecon™ is a ready to use solution of iron salts, including potassium ferrocyanide and tripotassium hexacyanoferrate, for use with reactions with a redox potential of 220mV. 250ML ORP BUFFER 220 MV
Hanna Instruments™ pH 4.01 Calibration Buffer Solution Sachets
BOX 25 SACHETS PH BUFFER 4,01
SI Analytics™ pH Buffer Standard pH 4.01, 6.87 and 9.1
X60 AMPOULES PH4,01+6,87+9,18 BOX
Reagecon™ Laboratory Buffer Solution, pH 7.00, Green
Designed for use in laboratory pH measurement. Reagecon™ Laboratory Buffer Solution, pH 7.00, Green 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. 250 ML BUFFER PH 7,00
Fisherbrand™ Traceable™ pH Buffer Standards, Certified Reference Material (CRM), Fisher Scientific™
IUPAC formulation X6 pH standard Fisherbrand pH4, single use, certif
Hanna Instruments™ pH 7.01 Calibration Buffer Sachets
X25 Buffer solution ready mixed sachets Qty 2520 ml
Hanna Instruments™ pH 10.01 Calibration Buffer Sachets
BOX 25 SACHETS PH BUFFER 10,01
pH 4.01 Technical Color-Coded Buffer Solution at 25°C, Reagecon
Easy-to-use, tested, certified, NIST traceable, and shelf-stable, color-coded buffer solution. 250ML TECHNICAL BUFFER 4.01
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
WTW™ TEP 10 Trace Model Buffer Solution pH 10.1
WTW ph 10 Buffer TEP101 x WTW ph 10 Buffer TEP10
GE Healthcare Whatman™ pH Indicators
Provides rapid determination of pH values. Whatman™ pH Indicators are impregnated with a mixture of several indicators that change color when they come in contact with a particular sample solution. INDACTOR PAPER ROLLPH 1-11 7 MM X
pH 4.00 Phthalate-Free Buffer Solution at 20°C, Reagecon
Tested, certified, NIST traceable, and shelf-stable buffer solution. 1LT BUFFER SOLUTION PH4.00 PH THALATE FREE 0.01 20°C 1
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
WTW™ TEP 4 Model Buffer Solution pH 4
PH BUFFER PH4 1LFlasche)
WTW™ Standard Buffer Solution pH 4.01
With a high accuracy: ±0.02 pH, this standard buffering solution is traceably certified to PTB/NIST and therefore safe for use. BUFFER PL 4
Buffer Solution, pH 10.105, Eu. Ph., Chem-Lab
500ML Standard buffer carbonate ph 10.06 (coloured) (ph 10.060 (±0.01/25°c) carbonate (col
pH 9.00 Buffer Solution at 25°C, Reagecon
Tested, certified, NIST traceable, and shelf-stable buffer solution. 5LT BUFFER SOLUTION PH9.00 0 .01 25°C 5L
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™ Sodium borate, 0.5M buffer soln., pH 8.5
CAS: 1330-43-4 MDL Number: MFCD00081185 500ML Sodium borate, 0.5M buffer soln., pH 8.5 500ml
Alfa Aesar™ ColorpHast™ Intermediate pH Strips
COLORPHAST PH STRIPS 5-10 PH RANGE 6UNITS
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, 0.5M buffer soln., pH 9.0
500ML Sodium phosphate, 0.5M buffer soln., pH 9.0 500ml
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