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 (22,852)

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General Chemistry Solutions (5,251)

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Kjeldahl Buffers and Reagents (108)

Gel Filtration Standards (60)

Matrix Modifiers (29)

Osmolality Standards (12)

Smoke Point Reference (9)

Polarimetric Standards (4)

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Grade

AAS (56)
AAS Standard (11)
ACS (59)
ACS Reagent (26)
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 (1)
>11.5 (3)
>12 (44)
>13 (104)
>8 (1)
<0.5 (3)

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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)
Crystalline (17)
Crystalline Powder (143)

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Technique

AA (472)
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 (432)
Buffer, Storage (2)
Calibration (8)
Cleaning (1)
Colored pH Buffer (35)

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601 – 615 of 43,777 results

601

Lead, AAS standard solution, Specpure™ Pb 1000μg/mL

CAS: 7439-92-1 Molecular Formula: Pb Molecular Weight (g/mol): 207.20 MDL Number: MFCD00134050 InChI Key: WABPQHHGFIMREM-UHFFFAOYSA-N PubChem CID: 5352425 ChEBI: CHEBI:27889 IUPAC Name: lead SMILES: [Pb]

Pricing & Availability
Specifications

PubChem CID	5352425
CAS	7439-92-1
Molecular Weight (g/mol)	207.20
ChEBI	CHEBI:27889
MDL Number	MFCD00134050
SMILES	[Pb]
IUPAC Name	lead
InChI Key	WABPQHHGFIMREM-UHFFFAOYSA-N
Molecular Formula	Pb

602

Ricca Chemical Company EP Reference Solution BY₆, Brownish-Yellow Reference Solution, Ricca Chemical

Pricing & Availability

603

Thermo Scientific Chemicals BICINE, 99%

CAS: 150-25-4 Molecular Formula: C6H12NNaO4 Molecular Weight (g/mol): 185.16 MDL Number: MFCD00004295 InChI Key: MFBDBXAVPLFMNJ-UHFFFAOYSA-M PubChem CID: 8761 ChEBI: CHEBI:40957 IUPAC Name: 2-[bis(2-hydroxyethyl)amino]acetic acid SMILES: [Na+].OCCN(CCO)CC([O-])=O

Pricing & Availability
Specifications

PubChem CID	8761
CAS	150-25-4
Molecular Weight (g/mol)	185.16
ChEBI	CHEBI:40957
MDL Number	MFCD00004295
SMILES	[Na+].OCCN(CCO)CC([O-])=O
IUPAC Name	2-[bis(2-hydroxyethyl)amino]acetic acid
InChI Key	MFBDBXAVPLFMNJ-UHFFFAOYSA-M
Molecular Formula	C6H12NNaO4

604

MP Biomedicals™ Phosphate Buffered Saline Tablets (PBS)

Phosphate Buffered Saline Tablets (PBS) are a balanced salt mixture for easy PBS buffer preparation for a variety of applications, including reagent preparation, diluting cells for flow cytometry, and cell culture reagent.

Pricing & Availability
Specifications

Includes	No Calcium, No Magnesium
Molecular Weight (g/mol)	74.55
MDL Number	MFCD00011360
Physical Form	Tablet
Chemical Name or Material	Phosphate Buffered Saline (PBS)
SMILES	[Cl-].[K+]
IUPAC Name	potassium chloride
InChI Key	WCUXLLCKKVVCTQ-UHFFFAOYSA-M
Molecular Formula	ClK

605

Calcium Chloride, For BOD, Certified, 2.75% (w/v) ±0.05%, LabChem™

CAS: 10035-04-8

Pricing & Availability
Specifications

CAS	10035-04-8

606

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

607

Thermo Scientific Chemicals MES sodium salt, 99%

CAS: 71119-23-8 Molecular Formula: C6H12NNaO4S Molecular Weight (g/mol): 217.215 MDL Number: MFCD00065473 InChI Key: IRHWMYKYLWNHTL-UHFFFAOYSA-M PubChem CID: 23673676 ChEBI: CHEBI:62955 IUPAC Name: sodium;2-morpholin-4-ylethanesulfonate SMILES: C1COCCN1CCS(=O)(=O)[O-].[Na+]

Pricing & Availability
Specifications

PubChem CID	23673676
CAS	71119-23-8
Molecular Weight (g/mol)	217.215
ChEBI	CHEBI:62955
MDL Number	MFCD00065473
SMILES	C1COCCN1CCS(=O)(=O)[O-].[Na+]
IUPAC Name	sodium;2-morpholin-4-ylethanesulfonate
InChI Key	IRHWMYKYLWNHTL-UHFFFAOYSA-M
Molecular Formula	C6H12NNaO4S

608

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

Pricing & Availability
Specifications

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

609

Thermo Scientific Chemicals MES, 1.0M buffer soln., pH 6.5

CAS: 145224-94-8 Molecular Formula: C6H15NO5S Molecular Weight (g/mol): 213.248 MDL Number: MFCD00283848 InChI Key: MIIIXQJBDGSIKL-UHFFFAOYSA-N PubChem CID: 16218417 IUPAC Name: 2-morpholin-4-ylethanesulfonic acid;hydrate SMILES: C1COCCN1CCS(=O)(=O)O.O

Pricing & Availability
Specifications

PubChem CID	16218417
CAS	145224-94-8
Molecular Weight (g/mol)	213.248
MDL Number	MFCD00283848
SMILES	C1COCCN1CCS(=O)(=O)O.O
IUPAC Name	2-morpholin-4-ylethanesulfonic acid;hydrate
InChI Key	MIIIXQJBDGSIKL-UHFFFAOYSA-N
Molecular Formula	C6H15NO5S

610

Thermo Scientific Chemicals HEPES, 0.5M buffer soln., pH 7.5

CAS: 7365-45-9 Molecular Formula: C8H18N2O4S Molecular Weight (g/mol): 238.30 MDL Number: MFCD00006158 InChI Key: JKMHFZQWWAIEOD-UHFFFAOYSA-N PubChem CID: 23831 ChEBI: CHEBI:42334 IUPAC Name: 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid SMILES: OCCN1CCN(CCS(O)(=O)=O)CC1

Pricing & Availability
Specifications

PubChem CID	23831
CAS	7365-45-9
Molecular Weight (g/mol)	238.30
ChEBI	CHEBI:42334
MDL Number	MFCD00006158
SMILES	OCCN1CCN(CCS(O)(=O)=O)CC1
IUPAC Name	2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid
InChI Key	JKMHFZQWWAIEOD-UHFFFAOYSA-N
Molecular Formula	C8H18N2O4S

611

Starch Solution R, EP Reagent 1085103, Ricca Chemical

Pricing & Availability

612

Ricca Chemical Company Phosphate Buffered Saline, 1X - Non-sterile, Ricca Chemical

Phosphate Buffered Saline, 1X is non-sterile.

Pricing & Availability

613

Buffer solution pH 10.00 (+/-0.024 @ 25oC) Colored Blue Specpure NIST Traceable

CAS: 1310-73-2

Pricing & Availability
Specifications

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	Yellow
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

614

Ricca Chemical Company Potassium Chloride Conductivity Standard, 2765 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

615

Lithium aluminum Hydride, 2.4M Solution in THF, AcroSeal™

CAS: 16853-85-3 | AlH4Li | 37.95 g/mol

Pricing & Availability
Specifications

Linear Formula	LiAlH₄
Molecular Weight (g/mol)	37.95
UN Number	1411
InChI Key	OCZDCIYGECBNKL-UHFFFAOYSA-N
Density	0.9000g/mL
PubChem CID	21226445
Name Note	2.4M Solution in THF
Percent Purity	9.2 to 10.5% (as LiAlH4)
Formula Weight	37.95
Color	Yellow
Physical Form	Viscous Liquid
Chemical Name or Material	Lithium Aluminum hydride
SMILES	[Li+].[AlH4-]
Merck Index	15, 344
Concentration	9.5 to 10.5% (as LiAlH4)
CAS	109-99-9
Health Hazard 3	GHS P Statement Keep away from heat/sparks/open flames/hot surfaces. - No smoking. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. Handle under inert gas. Protect from moisture. IF SWALLOWED: rinse mouth. Do NOT induce vomiting. 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	MFCD00011075
Health Hazard 2	GHS H Statement In contact with water releases flammable gases which may ignite spontaneously. Highly flammable liquid and vapor. Causes severe skin burns and eye damage. May cause respiratory irritation. May form explosive peroxides. Suspected of causing cancer. Harmful if swallowed. May cause drowsiness or dizziness.
Flash Point	−17°C
Solubility Information	Solubility in water: vigorous reaction.
Health Hazard 1	Danger
Synonym	lithium aluminum hydride,lithium aluminum hydride,aluminum lithium hydride,lithiumaluminiumhydride,aluminum iii lithium hydride,lithium alanate,lithium aluminum tetrahydride,lithiumaluminiumhydrid,litiumaluminum hydride,lithim aluminum hydride
IUPAC Name	lithium(1+) alumanuide
Molecular Formula	AlH4Li
Specific Gravity	0.9

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Buffers and Standards

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Ricca Chemical Company EP Reference Solution BY6, Brownish-Yellow Reference Solution, Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Calcium Chloride, For BOD, Certified, 2.75% (w/v) ±0.05%, LabChem™ GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Starch Solution R, EP Reagent 1085103, Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Ricca Chemical Company Phosphate Buffered Saline, 1X - Non-sterile, Ricca Chemical Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Ricca Chemical Company Potassium Chloride Conductivity Standard, 2765 μS/cm 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 EP Reference Solution BY₆, Brownish-Yellow Reference Solution, Ricca Chemical

Calcium Chloride, For BOD, Certified, 2.75% (w/v) ±0.05%, LabChem™

Starch Solution R, EP Reagent 1085103, Ricca Chemical

Ricca Chemical Company Phosphate Buffered Saline, 1X - Non-sterile, Ricca Chemical

Ricca Chemical Company Potassium Chloride Conductivity Standard, 2765 μS/cm at 25°C, Ricca Chemical