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 (22,723)

Spectroscopy Standards (5,733)

General Chemistry Solutions (5,071)

Matrix Blanks and Standardization Solutions (4,242)

Life Science Buffers (3,950)

Electrochemistry Buffers (2,323)

Environmental Testing Standards (1,873)

Electrochemistry Standards (1,248)

Karl Fischer Buffers and Reagents (470)

Isotope Standards (327)

Viscosity Standards (256)

Quality Control and Proficiency Samples (135)

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)
Small and Specialty Supplier (21,773)

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 (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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Search Within Results

61 – 75 of 43,220 results

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

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+]

Pricing & Availability
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

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

Pricing & Availability
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

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

Pricing & Availability
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

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Invitrogen™ Novex™ Tricine SDS Sample Buffer (2X)

Use with Novex Tricine Gels

Pricing & Availability

Ricca Chemical Company Glycerin (Glycerol), 50% (v/v), Ricca Chemical

CAS: 56-81-5 Molecular Formula: C3H8O3 Molecular Weight (g/mol): 92.09 MDL Number: MFCD00004722 InChI Key: PEDCQBHIVMGVHV-UHFFFAOYSA-N Synonym: glycerol,glycerin,glycerine,1,2,3-propanetriol,glycyl alcohol,trihydroxypropane,glyceritol,propanetriol,1,2,3-trihydroxypropane,osmoglyn PubChem CID: 753 ChEBI: CHEBI:17754 IUPAC Name: propane-1,2,3-triol SMILES: OCC(O)CO

Pricing & Availability
Specifications

PubChem CID	753
CAS	56-81-5
Molecular Weight (g/mol)	92.09
ChEBI	CHEBI:17754
MDL Number	MFCD00004722
SMILES	OCC(O)CO
Synonym	glycerol,glycerin,glycerine,1,2,3-propanetriol,glycyl alcohol,trihydroxypropane,glyceritol,propanetriol,1,2,3-trihydroxypropane,osmoglyn
IUPAC Name	propane-1,2,3-triol
InChI Key	PEDCQBHIVMGVHV-UHFFFAOYSA-N
Molecular Formula	C3H8O3

Corning™ Molecular Biology Reagents

Used in molecular biology, nucleic acid purification applications

Pricing & Availability
Specifications

Quantity	6 x 1 L

Ricca Chemical Company Conductivity Standard, 1413 μS/cm at 25°C, Ricca Chemical

Pricing & Availability
Specifications

Boiling Point	100°C
Type	Conductivity Standard
Color	Colorless
pH	6.7 to 7.3
Physical Form	Liquid
Chemical Name or Material	Conductivity Standard
Odor	Odorless
Solution Type	Conductivity Standard

LabChem, Inc. Conductivity Standard, 1000μmho/cm, LabChem™

Pricing & Availability

Thermo Scientific Chemicals Glycine, 0.2M buffer soln., pH 2.5

CAS: 56-40-6 Molecular Formula: C2H5NO2 Molecular Weight (g/mol): 75.07 MDL Number: MFCD00008131 InChI Key: DHMQDGOQFOQNFH-UHFFFAOYSA-N IUPAC Name: 2-aminoacetic acid SMILES: NCC(O)=O

Pricing & Availability
Specifications

CAS	56-40-6
Molecular Weight (g/mol)	75.07
MDL Number	MFCD00008131
SMILES	NCC(O)=O
IUPAC Name	2-aminoacetic acid
InChI Key	DHMQDGOQFOQNFH-UHFFFAOYSA-N
Molecular Formula	C2H5NO2

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ChromaCare™ LC-MS Instrument Flush Solution

ChromaCare™ LC-MS Instrument Flush Solution is designed to prepare LC/MS instruments for start-up. By reducing background noise, this solution facilitates instrument installation and preventative maintenance routines. ∣ CAS: 75-05-8; 67-56-1; 67-63-0; 7732-18-5

Pricing & Availability
Specifications

Percent Purity	25% Acetonitrile, 25% Methanol, 25% Water, 25% 2-Propanol (IPA)
CAS	75-05-8; 67-56-1; 67-63-0; 7732-18-5
Color	Colorless
Physical Form	Liquid
Grade	LC-MS

LabChem, Inc. Buffer Solution pH 4.0 at 25°C, Color Coded Red, Certified, LabChem™

Pricing & Availability
Specifications

Linear Formula	KHC₈H₄O₄
Color	Red
Traceability to NIST	Traceable to NIST
Physical Form	Liquid
Chemical Name or Material	Buffer Solution pH 4.0 at 25°C
Grade	Certified
Identification	Passes Test
Density	1g/mL
Name Note	Color Coded Red
CAS	67-56-1
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	Formaldehyde; Carbon monoxide; Carbon dioxide
Health Hazard 2	GHS H Statement Solution is not hazardous.
Solubility Information	Soluble in water
pH	4.00 to 4.01
Recommended Storage	Room Temperature
Formula Weight	204.23
Specific Gravity	1g/mL
CAS Max %	0.005

Tetrahydrofuran Anhydrous (stabilized with BHT) 99.5+%, TCI America™

CAS: 109-99-9 Molecular Formula: C4H8O Molecular Weight (g/mol): 72.11 MDL Number: MFCD00005356 InChI Key: WYURNTSHIVDZCO-UHFFFAOYSA-N Synonym: tetrahydrofuran,furan, tetrahydro,butylene oxide,furanidine,hydrofuran,tetramethylene oxide,oxacyclopentane,1,4-epoxybutane,tetrahydrofuranne,tetraidrofurano PubChem CID: 8028 ChEBI: CHEBI:26911 IUPAC Name: oxolane SMILES: C1CCOC1

Pricing & Availability
Specifications

PubChem CID	8028
CAS	109-99-9
Molecular Weight (g/mol)	72.11
ChEBI	CHEBI:26911
MDL Number	MFCD00005356
SMILES	C1CCOC1
Synonym	tetrahydrofuran,furan, tetrahydro,butylene oxide,furanidine,hydrofuran,tetramethylene oxide,oxacyclopentane,1,4-epoxybutane,tetrahydrofuranne,tetraidrofurano
IUPAC Name	oxolane
InChI Key	WYURNTSHIVDZCO-UHFFFAOYSA-N
Molecular Formula	C4H8O

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

LabChem, Inc. Calcium Carbonate Standard , (1mL = 1mg CaCO₃ = 0.4mg Ca), for Hardness, Certified, 1.000 ±0.010mg CaCO₃/mL, LabChem™

CAS: 471-34-1 Molecular Formula: CCaO3 Molecular Weight (g/mol): 100.09 MDL Number: MFCD00010906 InChI Key: VTYYLEPIZMXCLO-UHFFFAOYSA-L PubChem CID: 10112 ChEBI: CHEBI:3311 IUPAC Name: calcium carbonate SMILES: [Ca++].[O-]C([O-])=O

Pricing & Availability
Specifications

PubChem CID	10112
CAS	471-34-1
Molecular Weight (g/mol)	100.09
ChEBI	CHEBI:3311
MDL Number	MFCD00010906
SMILES	[Ca++].[O-]C([O-])=O
IUPAC Name	calcium carbonate
InChI Key	VTYYLEPIZMXCLO-UHFFFAOYSA-L
Molecular Formula	CCaO3

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Buffers and Standards

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Ricca Chemical Company Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C, Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Ricca Chemical Company Potassium Permanganate Standard, 891 mg/L (1000 ppm as Cl2), Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Ricca Chemical Company Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH3), Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Ricca Chemical Company Glycerin (Glycerol), 50% (v/v), Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Corning™ Molecular Biology Reagents SureTRACESupports traceability with guaranteed access to certificates and proactive change notifications.Learn More GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

LabChem, Inc. Conductivity Standard, 1000μmho/cm, LabChem™ GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

ChromaCare™ LC-MS Instrument Flush Solution Greener ChoiceOffers one or more environmental benefits itemized in the U.S. FTC “Green Guides.”Learn More

LabChem, Inc. Buffer Solution pH 4.0 at 25°C, Color Coded Red, Certified, LabChem™ GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Tetrahydrofuran Anhydrous (stabilized with BHT) 99.5+%, TCI America™ Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Ricca Chemical Company Sodium Chloride Standard, 1.00% (w/w), Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

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

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

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

Ricca Chemical Company Glycerin (Glycerol), 50% (v/v), Ricca Chemical

Corning™ Molecular Biology Reagents

LabChem, Inc. Conductivity Standard, 1000μmho/cm, LabChem™

ChromaCare™ LC-MS Instrument Flush Solution

LabChem, Inc. Buffer Solution pH 4.0 at 25°C, Color Coded Red, Certified, LabChem™

Tetrahydrofuran Anhydrous (stabilized with BHT) 99.5+%, TCI America™

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