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Buffers and Standards

Hydrogen ion buffers comprising a mixture of a weak acid and its conjugate base or vice-versa and used to stabilize pH; also diluents, washing solutions, and standard-value solutions used for a broad array of scientific calibration purposes.

The buffers used to calibrate pH meters may be certified and/or traceable to the National Institute of Standards and Technology (NIST). These buffers may also be color-coded for easy identification:

  • Red: pH 4.0
  • Yellow: pH 7.0
  • Blue: pH 10.0

 

Karl Fischer Buffers and Reagents (470)
General Chemistry Solutions (177)
Chromatography Standards (168)
Life Science Buffers (120)
Electrochemistry Buffers (94)
Matrix Blanks and Standardization Solutions (30)
Spectroscopy Standards (28)
Environmental Testing Standards (16)
Electrochemistry Standards (14)
Kjeldahl Buffers and Reagents (12)
Viscosity Standards (2)
Isotope Standards (1)

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Keyword Search:
1 – 15 of 880 results
1

Karl Fischer Aqualine™ Solvent, for Karl Fischer Titration By Volumetry, Fisher Chemical™

Solvent for two-component system; Pyridine free

EDGE
Name Note Karl Fischer Reagent
CAS 288-32-4
MDL Number 81734
Color Colorless
Packaging Amber glass bottle
Physical Form Liquid
Health Hazard 1 GHS Signal Word: Danger
UN Number 1992
DOT Information DOT Class 3, : Flammable Liquid
Chemical Name or Material Aqualine™ Solvent
Cleanup Symbol Solvent
ChemAlert Storage Symbol Red
2

Hydrogen Peroxide (30% in Water), Fisher BioReagents
GSA_VA

CAS: 7722-84-1 Molecular Formula: H2O2 Molecular Weight (g/mol): 34.014 InChI Key: MHAJPDPJQMAIIY-UHFFFAOYSA-N Synonym: oxydol,perhydrol,superoxol,interox,hydrogen dioxide,inhibine,peroxaan,albone,hioxyl,kastone PubChem CID: 784 ChEBI: CHEBI:16240 IUPAC Name: hydrogen peroxide SMILES: OO

EDGE
PubChem CID 784
CAS 7722-84-1
Molecular Weight (g/mol) 34.014
ChEBI CHEBI:16240
SMILES OO
Synonym oxydol,perhydrol,superoxol,interox,hydrogen dioxide,inhibine,peroxaan,albone,hioxyl,kastone
IUPAC Name hydrogen peroxide
InChI Key MHAJPDPJQMAIIY-UHFFFAOYSA-N
Molecular Formula H2O2
3

Karl Fischer Aqualine™ Matrix K, for Karl Fischer Titration By Volumetry, Fisher Chemical™

EDGE
MDL Number 81734
Color Colorless
Packaging Amber glass bottle
Physical Form Liquid
4

Karl Fischer Aqualine™ Water Standard 10mg, for Karl Fischer Titration, Fisher Chemical

Molecular Formula: C4H10O Molecular Weight (g/mol): 74.123 MDL Number: 240423 InChI Key: LRHPLDYGYMQRHN-UHFFFAOYSA-N PubChem CID: 263 ChEBI: CHEBI:28885 IUPAC Name: butan-1-ol SMILES: CCCCO

EDGE
PubChem CID 263
Molecular Weight (g/mol) 74.123
ChEBI CHEBI:28885
MDL Number 240423
SMILES CCCCO
IUPAC Name butan-1-ol
InChI Key LRHPLDYGYMQRHN-UHFFFAOYSA-N
Molecular Formula C4H10O
5

Karl Fischer Aqualine™ Water Standard 1.0mg, for Karl Fischer Titration, Fisher Chemical

MDL Number: 240423

EDGE
MDL Number 240423
7

PBS, Phosphate Buffered Saline, 10X Solution, Fisher BioReagents™
GSA_VA

Commonly used buffer

EDGE
Physical Form Liquid
Recommended Storage Room temperature
8
Promotions Available

Electrode Storage Solution, Fisher BioReagents™
GSA_VA

For use in storage of pH electrodes

EDGE
9
Promotions Available

TAE Buffer, Tris-Acetate-EDTA, 50X Solution, Electrophoresis, Fisher BioReagents™
GSA_VA

Tris-Acetate-EDTA, CAS Number-77-86-1, 60-00-4, 6850-28-8, TAE, 4L, Gray, Tris (24%), Acetic Acid (5.0%), and EDTA (<2%)., DNase free, Pass Test, Filtered through a 0.2-micron filter., Electrophoresis, 50X Solution, Poly CUBE, Liquid, Protease free, DNase-, RNase- and Protease-Free, RT

EDGE
Name Note 50X Solution
Concentration or Composition (by Analyte or Components) Tris (24%), Acetic Acid (5.0%), and EDTA (<2%).
CAS 6850-28-8
Protease Protease free
Physical Form Liquid
Grade Electrophoresis
Synonym TAE
Purity Grade Notes DNase-, RNase- and Protease-Free
DNase DNase free
Recommended Storage RT
Filtered Through Filtered through a 0.2-micron filter.
ChemAlert Storage Symbol Gray
10

PBS Tablets, Phosphate Buffered Saline, Fisher BioReagents™
GSA_VA

Phosphate Buffered Saline Tablets, CAS Number-7647-14-5, 7447-40-7, 100 tablets, Clear, Gray, White, 5/8 in., 600 SEC max., CAUTION!

EDGE
11
Promotions Available

FisherTab™ CT-37 Kjeldahl Tablets, Fisher Chemical
GSA_VA

Composition per tablet: 3.5g K2SO4 + 0.4g CuSO4

EDGE
12

TBS, Tris Buffered Saline, 10X Solution, pH 7.4, Molecular Biology, Fisher BioReagents™
GSA_VA

EDGE
Boiling Point 100°C
Color Colorless
Physical Form Liquid
Chemical Name or Material Tris Buffered Saline
Grade Molecular Biology
DNase DNase free
ChemAlert Storage Symbol Gray
Name Note 10X Solution
Concentration or Composition (by Analyte or Components) 10X solution contains 1.37M Sodium Chloride, 0.027M Potassium Chloride, and 0.25M Tris/Tris-HCl.
CAS 7732-18-5
Protease Protease free
pH 7.5
Synonym TBS
Purity Grade Notes DNase-, RNase- and Protease-Free
Recommended Storage RT
13

HEPES Buffer, 1M Solution, pH 7.3 (Molecular Biology), Fisher BioReagents™
GSA_VA

Commonly used buffering agent

EDGE
Color Undesignated
Physical Form Liquid
Chemical Name or Material HEPES Buffer
Grade Molecular Biology
Identification Pass Test
DNase DNase free
Merck Index 15, 4689
Concentration 0.95 to 1.05 M
ChemAlert Storage Symbol Gray
Absorbance ≤0.01(0.1M solution) at 260nm,0.004 max. (0.1M solution) at 280nm
Name Note 1M Solution, pH 7.3
CAS 7732-18-5
Protease Protease free
pH 7.2 to 7.5
Synonym N-(2-Hydroxyethyl)piperazine-N«-2-ethanesulfonic Acid
Purity Grade Notes DNase-, RNase- and Protease-Free
Recommended Storage RT
Molecular Formula C8H18N2O4S
Formula Weight 238.197
14

TE Buffer, Tris-EDTA, 1X Solution, pH 8.0, Molecular Biology, Fisher BioReagents
GSA_VA

EDGE
Color Colorless
Physical Form Liquid
Chemical Name or Material Tris-EDTA
Grade Molecular Biology
DNase DNase free
Filtered Through Filtered through a 5-micron filter.
ChemAlert Storage Symbol Gray
Name Note 1X Solution, pH 8.0
CAS 7732-18-5
Protease Protease free
Health Hazard 3 Emergency Overview
May cause eye, skin, and respiratory tract irritation. Avoid contact with skin and eyes. Do not breathe dust. Do not breathe vapors or spray mist. Wash off immediately with soap and plenty of water removing all contaminated clothes and shoes. Obtain medical attention. Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Obtain medical attention. Remove from exposure, lie down. Move to fresh air. If breathing is difficult, give oxygen. If not breathing, give artificial respiration. If not breathing, give artificial respiration. Obtain medical attention.

NFPA

Health:1
Flammability:0
Instability:0
Health Hazard 2 CAUTION!
pH 7.4 to 8.1
Synonym TE
Recommended Storage RT
15
Promotions Available

TBE Buffer, Tris-Borate-EDTA, 10X Solution, Electrophoresis, Fisher BioReagents™
GSA_VA

CAS: 10043-35-3 Synonym: TBE

EDGE
CAS 10043-35-3
Synonym TBE