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

Chromatography Standards (22,719)

Spectroscopy Standards (5,739)

General Chemistry Solutions (5,076)

Matrix Blanks and Standardization Solutions (4,263)

Life Science Buffers (3,953)

Electrochemistry Buffers (2,326)

Environmental Testing Standards (1,886)

Electrochemistry Standards (1,243)

Karl Fischer Buffers and Reagents (467)

Isotope Standards (338)

Viscosity Standards (255)

Quality Control and Proficiency Samples (184)

Kjeldahl Buffers and Reagents (90)

Gel Filtration Standards (59)

Matrix Modifiers (29)

Osmolality Standards (13)

Smoke Point Reference (10)

Polarimetric Standards (6)

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Available on GSA/VA Contract (381)
SureTRACE (78)
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Greener Choice (62)
Production Products (164)
Science Education (218)
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Grade

AAS (55)
AAS Standard (11)
ACS (55)
ACS Reagent (24)
ACS/ASTM E 200/AOAC/EPA (7)
ACS/ASTM E 200/AOAC/USP Volumetric (5)
APHA/EPA (5)

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Molecular Weight (g/mol)

0.00 (1)
10.81 (14)
100.09 (33)
100.117 g/mol (1)
100.12 (1)
100.121 (1)
100.15 (1)

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Quantity

0.1 mL (1)
0.1 mol (1)
0.5 L (1)
0.5 mL (15)
0.5 mol (1)
1 Bottle (5)
1 Box (1)

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Percent Purity

≥14% (BF3) (1)
≥30% (RT) (1)
≥30% (titration) (1)
≥35% (RT) (1)
≥40% (3)
≥49% (2)
≥50% (3)

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pH

≥12 to ≤14 (6)
>11.5 (2)
>12 (44)
>13 (100)
>8 (1)
<0.5 (3)
<1 (99)

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Solvent or Matrix

#2 Diesel Fuel (12)
10% HCl (19)
10% HCl/1% HNO₃ (1)
10% HNO3 (13)
15% HCl (3)
15% HNO₃ (2)
2% HCl (29)

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Concentration

≈0.000027 M (3)
≈0.0035 M (3)
≥30% (1)
≤0.1% in nitric acid (1)
≤2.5% KCl (T) (8)
0.00017 M (3)
0.001 M KCl (1)

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Physical Form

Aqueous Solution (30)
Capsule (11)
Chemvelope (1)
Clear Liquid (1)
Clear Liquid at 20°C (2)
Colorless Liquid (1)
Crystalline (17)

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Technique

AA (469)
Acidimetry (3)
Calibrating the absorbance of spectrophotometers (1)
Calibration (7)
Calibration and Matrix Spikes (1)
Calibration and Verification (16)
Calibration and Verification of Kinematic and Dynamic Viscosity Test (15)

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Solution Type

Antigen Retrieval Reagent (1)
Aqueous (2)
Buffer (374)
Buffer, Storage (2)
Calibration (8)
Cleaning (1)
Colored pH Buffer (35)

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Search Within Results

166 – 180 of 43,318 results

166

Invitrogen™ TBE (10X), RNase-free

Molecular biology grade, Invitrogen 10X TBE solution is supplied in four bottles containing 1 L each. The buffer is certified RNase-free, economical, and ready-to-use.

Pricing & Availability
Specifications

Chemical Name or Material	Running Buffer
Grade	Molecular Biology
Recommended Storage	Store at room temperature.
Concentration	10X
Product Line	Ambion

167

Thermo Scientific Chemicals TRIS-buffered saline (TBS, 10X) pH 7.4

CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00132476 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N PubChem CID: 6503 ChEBI: CHEBI:9754 IUPAC Name: 2-amino-2-(hydroxymethyl)propane-1,3-diol SMILES: C(C(CO)(CO)N)O

Pricing & Availability
Specifications

PubChem CID	6503
CAS	77-86-1
Molecular Weight (g/mol)	121.136
ChEBI	CHEBI:9754
MDL Number	MFCD00132476
SMILES	C(C(CO)(CO)N)O
IUPAC Name	2-amino-2-(hydroxymethyl)propane-1,3-diol
InChI Key	LENZDBCJOHFCAS-UHFFFAOYSA-N
Molecular Formula	C4H11NO3

168

Sodium hydroxide, 10N aq. soln.

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 MDL Number: MFCD00003548 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC Name: sodium;hydroxide SMILES: [OH-].[Na+]

Pricing & Availability
Specifications

PubChem CID	14798
CAS	1310-73-2
Molecular Weight (g/mol)	39.997
ChEBI	CHEBI:32145
MDL Number	MFCD00003548
SMILES	[OH-].[Na+]
Synonym	sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic
IUPAC Name	sodium;hydroxide
InChI Key	HEMHJVSKTPXQMS-UHFFFAOYSA-M
Molecular Formula	HNaO

169

LabChem, Inc. Hydrogen Peroxide, Certified, >30% (w/w), LabChem™

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

Pricing & Availability
Specifications

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

170

Ricca Chemical Company Total Ionic Strength Adjustment Buffer (TISAB II), with CDTA, Ricca Chemical

For Fluoride Analysis using Ion Selective Electrodes

Pricing & Availability
Specifications

Name Note	With CDTA
CAS	13291-61-7
For Use With (Equipment)	Ion Selective Electrode
Physical Form	Liquid
pH	5.4
CAS Min %	0.33
Chemical Name or Material	Buffer Solution, Total Ionic Strength Adjustment Buffer (TISAB II)
Grade	Laboratory
Concentration	1X
For Use With (Application)	Fluoride Analysis
Solution Type	Buffer
CAS Max %	0.34

171

Ricca Chemical Company Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C, Ricca Chemical

Pricing & Availability
Specifications

CAS	7732-18-5
For Use With (Equipment)	pH Meter and Electrode
Color	Colorless
Physical Form	Liquid
pH	6
CAS Min %	0.1
Concentration	1X
For Use With (Application)	Calibration
Solution Type	pH Buffer

172

Potassium Chloride Conductivity Standard, 718 μS/cm at 25°C, Ricca Chemical

CAS: 7447-40-7 Molecular Formula: ClK Molecular Weight (g/mol): 74.55 MDL Number: MFCD00011360 InChI Key: WCUXLLCKKVVCTQ-UHFFFAOYSA-M PubChem CID: 4873 ChEBI: CHEBI:32588 IUPAC Name: potassium chloride SMILES: [Cl-].[K+]

Pricing & Availability
Specifications

PubChem CID	4873
CAS	7447-40-7
Molecular Weight (g/mol)	74.55
ChEBI	CHEBI:32588
MDL Number	MFCD00011360
SMILES	[Cl-].[K+]
IUPAC Name	potassium chloride
InChI Key	WCUXLLCKKVVCTQ-UHFFFAOYSA-M
Molecular Formula	ClK

173

Thermo Scientific Chemicals Krebs-Ringer Solution, HEPES-buffered

Standard physiological buffer that is suitable for various calcium imaging experiments. It is also used as a preserving agent.

Pricing & Availability
Specifications

Solubility Information	Not miscible or difficult to mix in water.
Packaging	Plastic bottle
Physical Form	Liquid
Chemical Name or Material	Krebs-Ringer Solution
TSCA	Yes
Recommended Storage	Ambient temperatures

174

Ricca Chemical Company Potassium Chloride Conductivity Standard, 100 μS/cm at 25°C, Ricca Chemical

Pricing & Availability
Specifications

PubChem CID	4873
CAS	7447-40-7
Molecular Weight (g/mol)	74.55
ChEBI	CHEBI:32588
MDL Number	MFCD00011360
SMILES	[Cl-].[K+]
IUPAC Name	potassium chloride
InChI Key	WCUXLLCKKVVCTQ-UHFFFAOYSA-M
Molecular Formula	ClK

175

Thermo Scientific™ Pierce™ HeLa Digest/PRTC Standard

The Thermo Scientific Pierce HeLa Digest/PRTC Standard is a validated complex mammalian protein digest containing additional PRTC heavy isotope-labeled peptides designed for LC/MS performance testing.

Pricing & Availability
Specifications

Chemical Name or Material	HeLa Digest/PRTC Standard
Grade	MS
Synonym	HeLa/PRTC

176

LabChem, Inc. Buffer Solution pH 7.0 at 25°C, Certified, LabChem™

Pricing & Availability
Specifications

Linear Formula	KH₂PO₄
Color	Colorless
Traceability to NIST	Traceable to NIST
Physical Form	Liquid
Chemical Name or Material	Buffer Solution pH 7.0 at 25°C
Grade	Certified
Identification	Passes Test
CAS	1310-73-2
Health Hazard 3	GHS P Statement If in contact with skin or eyes, rinse thoroughly with water for 15-20 minutes. If swallowed, get medical attention.
Decomposition Information	Phosphorus oxides; Sodium oxide
Health Hazard 2	GHS H Statement Solution is not hazardous.
Solubility Information	Soluble in water
pH	7.00 ±0.01
Recommended Storage	Room Temperature
Formula Weight	136.09
CAS Max %	0.08

177

Sodium Hydroxide, 0.250 N (N/4), Ricca Chemical

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC Name: sodium;hydroxide SMILES: [OH-].[Na+]

Pricing & Availability
Specifications

PubChem CID	14798
CAS	1310-73-2
Molecular Weight (g/mol)	39.997
ChEBI	CHEBI:32145
SMILES	[OH-].[Na+]
Synonym	sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic
IUPAC Name	sodium;hydroxide
InChI Key	HEMHJVSKTPXQMS-UHFFFAOYSA-M
Molecular Formula	HNaO

178

Thermo Scientific Chemicals TRIS, 1.0M buffer soln., pH 7.4

CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00004679 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N PubChem CID: 6503 ChEBI: CHEBI:9754 IUPAC Name: 2-amino-2-(hydroxymethyl)propane-1,3-diol SMILES: C(C(CO)(CO)N)O

Pricing & Availability
Specifications

PubChem CID	6503
CAS	77-86-1
Molecular Weight (g/mol)	121.136
ChEBI	CHEBI:9754
MDL Number	MFCD00004679
SMILES	C(C(CO)(CO)N)O
IUPAC Name	2-amino-2-(hydroxymethyl)propane-1,3-diol
InChI Key	LENZDBCJOHFCAS-UHFFFAOYSA-N
Molecular Formula	C4H11NO3

179

Promotions Available

Applied Biosystems™ Anode Buffer Container (ABC), for 3500/SeqStudio™ Flex

The Anode Buffer Container (ABC) contains 1X running buffer to support all electrophoresis applications on the Applied Biosystems 3500 and SeqStudio Flex series genetic analyzers.

Pricing & Availability

180

Thermo Scientific™ Orion™ ISE Surfactant Analysis Solutions

Use Thermo Scientific™ Orion™ ISE Surfactant Analysis Solutions for titrations with surfactant ion selective electrodes (ISE).

Pricing & Availability

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Buffers and Standards

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LabChem, Inc. Hydrogen Peroxide, Certified, >30% (w/w), LabChem™ GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Ricca Chemical Company Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C, Ricca Chemical SureTRACESupports traceability with guaranteed access to certificates and proactive change notifications.Learn More

Ricca Chemical Company Potassium Chloride Conductivity Standard, 100 μS/cm at 25°C, Ricca Chemical GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

LabChem, Inc. Buffer Solution pH 7.0 at 25°C, Certified, LabChem™ GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Applied Biosystems™ Anode Buffer Container (ABC), for 3500/SeqStudio™ Flex Greener ChoiceOffers one or more environmental benefits itemized in the U.S. FTC “Green Guides.”Learn More

LabChem, Inc. Hydrogen Peroxide, Certified, >30% (w/w), LabChem™

Ricca Chemical Company Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C, Ricca Chemical

Ricca Chemical Company Potassium Chloride Conductivity Standard, 100 μS/cm at 25°C, Ricca Chemical

LabChem, Inc. Buffer Solution pH 7.0 at 25°C, Certified, LabChem™

Applied Biosystems™ Anode Buffer Container (ABC), for 3500/SeqStudio™ Flex