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Electrochemistry Buffers

Buffer solutions suitable for use as reference and calibration standards for measuring pH values.
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1 – 15 of 65 results
1

Buffer solution pH 4.01 (+/-0.022 @ 25oC) No Color Specpure NIST Traceable

CAS: 1336-21-6 | H5NO | 35.05 g/mol

EDGE
Molecular Weight (g/mol) 35.05
ChEBI CHEBI:18219
Color Colorless
Physical Form Liquid
Chemical Name or Material Buffer solution
SMILES N.O
InChI Key VHUUQVKOLVNVRT-UHFFFAOYSA-N
Vapor Pressure 23 hPa (17mm Hg) at 20°C
PubChem CID 14923
MDL Number MFCD00066650
Solubility Information Miscible with water.
TSCA Yes
Recommended Storage Ambient temperatures
IUPAC Name azanium;hydroxide
Molecular Formula H5NO
Odor Odorless
2

Thermo Scientific Chemicals Sodium borate, 0.5M buffer soln., pH 8.5

CAS: 1330-43-4 Molecular Formula: B4Na2O7 Molecular Weight (g/mol): 201.21 MDL Number: MFCD00081185 InChI Key: NXSVMNYRVBQCMO-UHFFFAOYSA-N IUPAC Name: disodium bicyclo[3.3.1]tetraboroxane-3,7-bis(ylium)-1,5-diuide-1,5-bis(olate) SMILES: [Na+].[Na+].[O-][B-]12O[B+]O[B-]([O-])(O[B+]O1)O2

EDGE
CAS 1330-43-4
Molecular Weight (g/mol) 201.21
MDL Number MFCD00081185
SMILES [Na+].[Na+].[O-][B-]12O[B+]O[B-]([O-])(O[B+]O1)O2
IUPAC Name disodium bicyclo[3.3.1]tetraboroxane-3,7-bis(ylium)-1,5-diuide-1,5-bis(olate)
InChI Key NXSVMNYRVBQCMO-UHFFFAOYSA-N
Molecular Formula B4Na2O7
3

Thermo Scientific Chemicals Borate, 0.5M buffer soln., pH 8.5

CAS: 1330-43-4 Molecular Formula: B4Na2O7 Molecular Weight (g/mol): 201.21 MDL Number: MFCD00081185 InChI Key: NXSVMNYRVBQCMO-UHFFFAOYSA-N IUPAC Name: disodium bicyclo[3.3.1]tetraboroxane-3,7-bis(ylium)-1,5-diuide-1,5-bis(olate) SMILES: [Na+].[Na+].[O-][B-]12O[B+]O[B-]([O-])(O[B+]O1)O2

EDGE
CAS 1330-43-4
Molecular Weight (g/mol) 201.21
MDL Number MFCD00081185
SMILES [Na+].[Na+].[O-][B-]12O[B+]O[B-]([O-])(O[B+]O1)O2
IUPAC Name disodium bicyclo[3.3.1]tetraboroxane-3,7-bis(ylium)-1,5-diuide-1,5-bis(olate)
InChI Key NXSVMNYRVBQCMO-UHFFFAOYSA-N
Molecular Formula B4Na2O7
4

Thermo Scientific Chemicals Sodium phosphate, 0.2M buffer soln., pH 7.0

EDGE
MDL Number MFCD00146206
Solubility Information Fully miscible.
Physical Form Liquid
pH 7.0
Chemical Name or Material Sodium phosphate buffer soln.
TSCA Yes
Recommended Storage Ambient temperatures
Concentration 0.2 M
5

Thermo Scientific Chemicals Sodium citrate, 0.5M buffer soln., pH 6.0

EDGE
Health Hazard 3 GHS P Statement
P280-P264-P305+P351+P338-P337+P313
Wear protective gloves/protective clothing/eye protection/face protection.
Wash thoroughly after handling.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
If eye irritation persists: Get medical advice/attention.
MDL Number MFCD00012462
Health Hazard 2 GHS H Statement
H319
Causes serious eye irritation.
Color Colorless
Solubility Information Fully miscible in water.
Physical Form Liquid
pH 6.0
Health Hazard 1 Warning
Chemical Name or Material Sodium citrate buffer soln.
TSCA Yes
Recommended Storage Keep cold
Concentration 0.5 M
Odor Odorless
6

Thermo Scientific Chemicals Borate, 0.5M buffer soln., pH 9.5

CAS: 1330-43-4 Molecular Formula: B4Na2O7 Molecular Weight (g/mol): 201.21 MDL Number: MFCD00081185 InChI Key: NXSVMNYRVBQCMO-UHFFFAOYSA-N IUPAC Name: disodium bicyclo[3.3.1]tetraboroxane-3,7-bis(ylium)-1,5-diuide-1,5-bis(olate) SMILES: [Na+].[Na+].[O-][B-]12O[B+]O[B-]([O-])(O[B+]O1)O2

EDGE
CAS 1330-43-4
Molecular Weight (g/mol) 201.21
MDL Number MFCD00081185
SMILES [Na+].[Na+].[O-][B-]12O[B+]O[B-]([O-])(O[B+]O1)O2
IUPAC Name disodium bicyclo[3.3.1]tetraboroxane-3,7-bis(ylium)-1,5-diuide-1,5-bis(olate)
InChI Key NXSVMNYRVBQCMO-UHFFFAOYSA-N
Molecular Formula B4Na2O7
7

Thermo Scientific Chemicals Sodium citrate, 0.5M buffer soln., pH 6.5

EDGE
MDL Number MFCD00012462
Color Colorless
Solubility Information Soluble in water.
Physical Form Liquid
pH 6.5
Chemical Name or Material Sodium citrate buffer soln.
TSCA Yes
Recommended Storage Keep cold
Concentration 0.5 M
Odor Odorless
8

Thermo Scientific Chemicals Sodium phosphate, 0.2M buffer soln., pH 8.0

EDGE
MDL Number MFCD00146206
Solubility Information Fully miscible in water.
Physical Form Liquid
pH 8.0
Chemical Name or Material Sodium phosphate buffer soln.
TSCA Yes
Recommended Storage Ambient temperatures
Concentration 0.2 M
9

Thermo Scientific Chemicals Sodium phosphate, 0.2M buffer soln., pH 7.4

EDGE
MDL Number MFCD00146206
Solubility Information Miscible with water. Immiscible with alcohol.
Physical Form Liquid
pH 7.4
Chemical Name or Material Sodium phosphate buffer soln.
TSCA Yes
Recommended Storage Ambient temperatures
Concentration 0.2 M
10

Thermo Scientific Chemicals Sodium citrate, 0.5M buffer soln., pH 5.0

EDGE
Health Hazard 3 GHS P Statement
P280-P305+P351+P338-P310
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician.
MDL Number MFCD00012462
Health Hazard 2 GHS H Statement
H318
Causes serious eye damage.
Color Colorless
Solubility Information It is soluble in water (29.4g/L) at 20°C. Insoluble in ethanol.
Physical Form Liquid
pH 5.0
Health Hazard 1 Danger
Chemical Name or Material Sodium citrate buffer soln.
TSCA No
Recommended Storage Keep cold
Concentration 0.5 M
Odor Odorless
11

Buffer solution, pH 2.00 (+/-0.026 @ 25oC), No Color, Specpure, NIST Traceable

For Calibration of pH Meters | CAS: 7447-40-7

EDGE
Color Colorless
Traceability to NIST Yes
Physical Form Liquid
Chemical Name or Material Buffer solution
Vapor Pressure 23 hPa (17mm Hg) at 20°C
Concentration or Composition (by Analyte or Components) Potassium chloride: 0.7%; Hydrochloric acid: 0.7%; water: 98.6%
CAS 7732-18-5
Health Hazard 3 P234-P390
MDL Number MFCD00146252
Health Hazard 2 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable gloves and eye/face protection. This material and/or its container must be disposed of as hazardous waste.
Solubility Information Soluble in water.
Health Hazard 1 H290
TSCA Yes
Recommended Storage Ambient temperatures
12

Buffer solution pH 7.00 (+/-0.024 @ 25oC) No Color Specpure NIST Traceable

CAS: 1336-21-6 | H5NO | 35.05 g/mol

Molecular Weight (g/mol) 35.05
ChEBI CHEBI:18219
Color Colorless
Traceability to NIST Yes
Physical Form Liquid
Chemical Name or Material Buffer solution
Grade Specpure
SMILES N.O
InChI Key VHUUQVKOLVNVRT-UHFFFAOYSA-N
PubChem CID 14923
CAS 1336-21-6
MDL Number MFCD00066650
Solubility Information pH 7.00 buffers are in solution form. Miscible with water.
TSCA Yes
Recommended Storage Ambient temperatures
Molecular Formula H5NO
Odor Odorless
13

Buffer solution pH 4.00 (+/-0.022 @ 25oC) Colored Red Specpure NIST Traceable

CAS: 1310-73-2

Concentration or Composition (by Analyte or Components) Sodium hydroxide: 0.7%; Potassium dihydrogen phosphate: 0.7%; water: 98.6%
CAS 7732-18-5
MDL Number MFCD00146206
Color Red
Solubility Information Miscible with water.
Physical Form Liquid
Chemical Name or Material Buffer solution
TSCA Yes
Recommended Storage Ambient temperatures
Vapor Pressure 23 hPa (17mm Hg) at 20°C
14

Thermo Scientific Chemicals Sodium bicarbonate, 1M buffer soln., pH 10.0

CAS: 144-55-8 Molecular Formula: CHNaO3 Molecular Weight (g/mol): 84.01 MDL Number: MFCD00003528 InChI Key: UIIMBOGNXHQVGW-UHFFFAOYSA-M PubChem CID: 516892 ChEBI: CHEBI:32139 IUPAC Name: sodium;hydrogen carbonate SMILES: [Na+].OC([O-])=O

PubChem CID 516892
CAS 144-55-8
Molecular Weight (g/mol) 84.01
ChEBI CHEBI:32139
MDL Number MFCD00003528
SMILES [Na+].OC([O-])=O
IUPAC Name sodium;hydrogen carbonate
InChI Key UIIMBOGNXHQVGW-UHFFFAOYSA-M
Molecular Formula CHNaO3
15

Buffer solution, pH 6.86 (+/-0.024 @ 25oC), No Color, Specpure, NIST Traceable

CAS: 1336-21-6 | H5NO | 35.05 g/mol

Molecular Weight (g/mol) 35.05
ChEBI CHEBI:18219
Color Colorless
Physical Form Liquid
Chemical Name or Material Buffer solution
SMILES N.O
InChI Key VHUUQVKOLVNVRT-UHFFFAOYSA-N
PubChem CID 14923
CAS 1336-21-6
MDL Number MFCD00066650
TSCA Yes
Recommended Storage Ambient temperatures
Molecular Formula H5NO
Odor Odorless