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

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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 (471)
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 (375)
Buffer, Storage (2)
Calibration (8)
Cleaning (1)
Colored pH Buffer (35)

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61 – 75 of 43,369 results

Fisher Scientific Chloride Standard, 1000 ppm Cl^-, Fisherbrand

CAS: 7647-14-5 Molecular Formula: ClNa Molecular Weight (g/mol): 58.44 MDL Number: MFCD00003477 InChI Key: FAPWRFPIFSIZLT-UHFFFAOYSA-M PubChem CID: 5234 ChEBI: CHEBI:26710 IUPAC Name: sodium chloride SMILES: [Na+].[Cl-]

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Specifications

PubChem CID	5234
CAS	7647-14-5
Molecular Weight (g/mol)	58.44
ChEBI	CHEBI:26710
MDL Number	MFCD00003477
SMILES	[Na+].[Cl-]
IUPAC Name	sodium chloride
InChI Key	FAPWRFPIFSIZLT-UHFFFAOYSA-M
Molecular Formula	ClNa

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TAE Buffer, Tris-Acetate-EDTA, 10X Solution, Electrophoresis, Fisher BioReagents

Pricing & Availability
Specifications

Name Note	10X Solution
Concentration or Composition (by Analyte or Components)	Tris (<5.0%), Acetic Acid (1.0%), and EDTA (<1%).
CAS	77-86-1
Protease	Protease free
Physical Form	Liquid
Chemical Name or Material	Tris-Acetate-EDTA
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

Ricca Chemical Company Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH₃), Ricca Chemical

CAS: 12125-02-9 Molecular Formula: ClH4N Molecular Weight (g/mol): 53.49 MDL Number: MFCD00011420 InChI Key: NLXLAEXVIDQMFP-UHFFFAOYSA-N PubChem CID: 25517 ChEBI: CHEBI:31206 IUPAC Name: amine hydrochloride SMILES: N.Cl

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Specifications

PubChem CID	25517
CAS	12125-02-9
Molecular Weight (g/mol)	53.49
ChEBI	CHEBI:31206
MDL Number	MFCD00011420
SMILES	N.Cl
IUPAC Name	amine hydrochloride
InChI Key	NLXLAEXVIDQMFP-UHFFFAOYSA-N
Molecular Formula	ClH4N

Ricca Chemical Company Potassium Permanganate Standard, 891 mg/L (1000 ppm as Cl₂), Ricca Chemical

CAS: 7722-64-7 Molecular Formula: KMnO4 Molecular Weight (g/mol): 158.032 InChI Key: VZJVWSHVAAUDKD-UHFFFAOYSA-N PubChem CID: 516875 IUPAC Name: potassium;permanganate SMILES: [O-][Mn](=O)(=O)=O.[K+]

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Specifications

PubChem CID	516875
CAS	7722-64-7
Molecular Weight (g/mol)	158.032
SMILES	[O-][Mn](=O)(=O)=O.[K+]
IUPAC Name	potassium;permanganate
InChI Key	VZJVWSHVAAUDKD-UHFFFAOYSA-N
Molecular Formula	KMnO4

Thermo Scientific Chemicals TRIS-buffered saline (TBS, 20X) 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

Hydrochloric acid, 1.0N Standardized Solution

CAS: 7647-01-0 Molecular Formula: ClH Molecular Weight (g/mol): 36.46 MDL Number: MFCD00011324 MFCD00792839 InChI Key: VEXZGXHMUGYJMC-UHFFFAOYSA-N PubChem CID: 313 ChEBI: CHEBI:17883 SMILES: Cl

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Specifications

PubChem CID	313
CAS	7647-01-0
Molecular Weight (g/mol)	36.46
ChEBI	CHEBI:17883
MDL Number	MFCD00011324 MFCD00792839
SMILES	Cl
InChI Key	VEXZGXHMUGYJMC-UHFFFAOYSA-N
Molecular Formula	ClH

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Invitrogen™ TE, pH 7.0, RNase-free

Invitrogen TE buffer is a commonly recommended storage solution for RNA samples. 10 mM Tris-HCl, 1 mM EDTA, pH 7.0 is in nuclease-free, ultrapure water.

Pricing & Availability
Specifications

Packaging	Bottle
Physical Form	Liquid
pH	7.0
Recommended Storage	Store at room temperature.
Product Line	Ambion

Ricca Chemical Company Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C, Ricca Chemical

Pricing & Availability
Specifications

For Use With (Equipment)	pH Meter and Electrode
Physical Form	Liquid
pH	11
CAS Min %	0.11
Concentration	1X
For Use With (Application)	Calibration
Solution Type	pH Buffer
CAS Max %	0.11

Ricca Chemical Company Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C, Ricca Chemical

Pricing & Availability
Specifications

Boiling Point	100°C
Color	Colorless
Physical Form	Liquid
CAS Min %	0.08
Chemical Name or Material	Buffer, Reference Standard
Grade	Reference Standard
Concentration	1X
For Use With (Application)	Calibration
Sterility	Non-sterile
Name Note	pH 12.00± 0.01 at 25°C
CAS	7732-18-5
For Use With (Equipment)	pH Meter and Electrode
Solubility Information	Miscible
pH	12
DOT Information	Not Regulated by DOT
Shelf Life	18 months
Solution Type	pH Buffer
CAS Max %	0.08
Melting Point	0°C

Invitrogen™ Novex™ Tris-Glycine Native Sample Buffer (2X)

Ideal for native running conditions with NuPAGE Tris-Acetate gels

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Invitrogen™ Novex™ Tris-Glycine Native Running Buffer (10X)

Use with NuPAGE Novex Tris-Acetate gels

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LabChem, Inc. TISAB II, For Fluoride, Certified, LabChem™

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Specifications

Linear Formula	CH₃COOH
Color	Colorless
Physical Form	Liquid
Traceability to NIST	Traceable to NIST
Chemical Name or Material	TISAB II
Identification	Passes Test
Grade	Certified
Name Note	For Fluoride
CAS	125572-95-4
Decomposition Information	Carbon monoxide; Carbon dioxide
Health Hazard 2	GHS H Statement Causes skin irritation. Causes serious eye irritation.
pH	5.3 to 5.5
Solubility Information	Soluble in water
Health Hazard 1	Warning
Recommended Storage	Room Temperature
Formula Weight	60.05
CAS Max %	0.4

Thermo Scientific Chemicals Tris(hydroxymethyl)aminomethane, ultrapure, 99.9%

CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00004679 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonym: TRIS 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
Synonym	TRIS
IUPAC Name	2-amino-2-(hydroxymethyl)propane-1,3-diol
InChI Key	LENZDBCJOHFCAS-UHFFFAOYSA-N
Molecular Formula	C4H11NO3

Ricca Chemical Company Inorganic Carbon Standard, 1000 ppm C, Ricca Chemical

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

Pricing & Availability
Specifications

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

Ricca Chemical Company Sodium Chloride Standard, 1.00% (w/w), Ricca Chemical

CAS: 7647-14-5 Molecular Formula: ClNa Molecular Weight (g/mol): 58.44 MDL Number: MFCD00003477 InChI Key: FAPWRFPIFSIZLT-UHFFFAOYSA-M Synonym: sodium chloride,salt,table salt,halite,saline,rock salt,common salt,sodium chloride nacl,dendritis,purex PubChem CID: 5234 ChEBI: CHEBI:26710 IUPAC Name: sodium chloride SMILES: [Na+].[Cl-]

Pricing & Availability
Specifications

PubChem CID	5234
CAS	7647-14-5
Molecular Weight (g/mol)	58.44
ChEBI	CHEBI:26710
MDL Number	MFCD00003477
SMILES	[Na+].[Cl-]
Synonym	sodium chloride,salt,table salt,halite,saline,rock salt,common salt,sodium chloride nacl,dendritis,purex
IUPAC Name	sodium chloride
InChI Key	FAPWRFPIFSIZLT-UHFFFAOYSA-M
Molecular Formula	ClNa

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Buffers and Standards

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TAE Buffer, Tris-Acetate-EDTA, 10X Solution, Electrophoresis, Fisher BioReagents GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

TAE Buffer, Tris-Acetate-EDTA, 10X Solution, Electrophoresis, Fisher BioReagents