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 (24,175)

Spectroscopy Standards (5,643)

General Chemistry Solutions (5,062)

Matrix Blanks and Standardization Solutions (4,295)

Life Science Buffers (4,179)

Electrochemistry Buffers (2,347)

Environmental Testing Standards (1,857)

Electrochemistry Standards (1,241)

Karl Fischer Buffers and Reagents (473)

Isotope Standards (387)

Viscosity Standards (259)

Quality Control and Proficiency Samples (183)

Kjeldahl Buffers and Reagents (90)

Gel Filtration Standards (58)

Matrix Modifiers (29)

Osmolality Standards (12)

Smoke Point Reference (10)

Polarimetric Standards (6)

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Grade

AAS (55)
AAS Standard (11)
ACS (55)
ACS Reagent (25)
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 mol (1)
0.5 L (1)
0.5 mL (15)
0.5 mol (1)
1 Bottle (5)
1 Box (1)
1 Ea. (5)

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Percent Purity

≥ 4400 Units/mg (Nystatin) ≥ 5000 Units/mg (Nystatin) (1) (8)
≥ 85.0 % (1)
≥14% (BF3) (1)
≥30% (RT) (1)
≥30% (titration) (1)
≥35% (RT) (1)
≥40% (3)

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pH

≥12 to ≤14 (6)
>11.5 (1)
>12 (44)
>13 (97)
>8 (1)
<0.5 (3)
<1 (98)

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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 (467)
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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For Use With (Application)

Accurate calibrations and NIST traceability (1)
Accurate calibrations and NIST traceability, laboratory and bench analysis (2)
Accurate calibrations and NIST traceability, portable and field analysis (1)
Accurate pH calibrations and NIST traceability, laboratory and bench analysis (8)
Accurate pH calibrations and NIST traceability, portable and field analysis (6)
Accurate, reproducible pH calibrations (16)
Agarose Gel Electrophoresis, Polyacrylamide Gel Electrophoresis (1)

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Search Within Results

871 – 885 of 44,681 results

871

Thermo Scientific Chemicals Sodium bicarbonate, 1M buffer soln., pH 9.4

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

Pricing & Availability
Specifications

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

872

Thermo Scientific Chemicals MES, 0.2M buffer soln., pH 6.0

CAS: 145224-94-8 Molecular Formula: C6H15NO5S Molecular Weight (g/mol): 213.25 MDL Number: MFCD00149409 InChI Key: MIIIXQJBDGSIKL-UHFFFAOYSA-N PubChem CID: 16218417 IUPAC Name: 2-(morpholin-4-yl)ethane-1-sulfonic acid hydrate SMILES: O.OS(=O)(=O)CCN1CCOCC1

Pricing & Availability
Specifications

PubChem CID	16218417
CAS	145224-94-8
Molecular Weight (g/mol)	213.25
MDL Number	MFCD00149409
SMILES	O.OS(=O)(=O)CCN1CCOCC1
IUPAC Name	2-(morpholin-4-yl)ethane-1-sulfonic acid hydrate
InChI Key	MIIIXQJBDGSIKL-UHFFFAOYSA-N
Molecular Formula	C6H15NO5S

873

Boron trichloride, 1M solution in hexane, AcroSeal™

CAS: 10294-34-5 | BCl3 | 117.16 g/mol

Pricing & Availability
Specifications

Linear Formula	BCl₃
Molecular Weight (g/mol)	117.16
InChI Key	FAQYAMRNWDIXMY-UHFFFAOYSA-N
Density	0.7380g/mL
PubChem CID	25135
Name Note	1M Solution in Hexane
Fieser	01,67; 02,34; 03,31; 04,42; 05,50; 06,65; 09,62; 13,43; 15,44
RTECS Number	ED1925000
Formula Weight	117.17
Color	Colorless to Yellow
Physical Form	Solution
Chemical Name or Material	Boron trichloride
SMILES	ClB(Cl)Cl
Concentration	0.9 to 1.1M
CAS	110-54-3
Health Hazard 3	GHS P Statement Wear protective gloves/protective clothing/eye protection/face protection. 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. IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Store in a dry place. Store in a closed container.
MDL Number	MFCD00011313
Health Hazard 2	GHS H Statement May be fatal if swallowed and enters airways. Fatal if swallowed. Fatal if inhaled. Suspected of damaging fertility. May cause drowsiness or dizziness. May cause damage to organs through prolonged or repeated exposure. Causes severe skin burns and eye damage. Toxic to aquatic life with long lasting effects. Highly flammable liquid and vapor. Reacts violently with water.
Flash Point	−17°C
Solubility Information	Solubility in water: may decompose.
Health Hazard 1	Danger
Synonym	boron trichloride,borane, trichloro,boron chloride,trichloroboron,borontrichloride,chlorure de bore french,unii-k748471rag,hsdb 326,boron trichloride un1741 poison gas
TSCA	TSCA
IUPAC Name	trichloroborane
Molecular Formula	BCl3
EINECS Number	233-658-4
Specific Gravity	0.738

874

Thermo Scientific Chemicals Citrate Buffer, 0.2M buffer soln., pH 4.0, low endotoxin

CAS: 6132-04-3 | C6H9Na3O9 | 294.10 g/mol

Pricing & Availability
Specifications

Storage Note 1	2° to 8°C
Molecular Weight (g/mol)	294.10
Color	Colorless
Physical Form	Liquid
Chemical Name or Material	Citrate Buffer
Concentration	0.2 M
InChI Key	NLJMYIDDQXHKNR-UHFFFAOYSA-K
Name Note	low endotoxin
CAS	4-3-6132
MDL Number	MFCD00150031
pH	4.0
TSCA	Yes
Recommended Storage	Keep cold
Molecular Formula	C6H9Na3O9

875

MP Biomedicals™ 1X Hanks' Balanced Salt Solution (Modified) without Phenol Red

1X Hanks' Balanced Salt Solution (Modified) without Phenol Red is a clear medium ideal for working with stem cells or when growing cells at low densities.

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876

Thermo Scientific Chemicals ACES Buffer (0.5 M, pH 7.0)

CAS: 7365-82-4 Molecular Formula: C4H10N2O4S Molecular Weight (g/mol): 182.194 MDL Number: MFCD00008030 InChI Key: DBXNUXBLKRLWFA-UHFFFAOYSA-N PubChem CID: 81832 ChEBI: CHEBI:39062 IUPAC Name: 2-[(2-amino-2-oxoethyl)amino]ethanesulfonic acid SMILES: C(CS(=O)(=O)O)NCC(=O)N

Pricing & Availability
Specifications

PubChem CID	81832
CAS	7365-82-4
Molecular Weight (g/mol)	182.194
ChEBI	CHEBI:39062
MDL Number	MFCD00008030
SMILES	C(CS(=O)(=O)O)NCC(=O)N
IUPAC Name	2-[(2-amino-2-oxoethyl)amino]ethanesulfonic acid
InChI Key	DBXNUXBLKRLWFA-UHFFFAOYSA-N
Molecular Formula	C4H10N2O4S

877

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

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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

878

Promotions Available

sec-Butyllithium, 1.3M sol. in cyclohexane/hexane (92/8), AcroSeal™, Thermo Scientific Chemicals

CAS: 598-30-1 Molecular Formula: C4H9Li Molecular Weight (g/mol): 64.06 MDL Number: MFCD00009323 InChI Key: VATDYQWILMGLEW-UHFFFAOYNA-N Synonym: sec-butyllithium,s-buli,s-butyllithium,s-butyl lithium,unii-5yv3gii1tb,lithium, 1-methylpropyl,5yv3gii1tb,secbutyllithium,b-butyllithium,sec-butyllitium PubChem CID: 102446 IUPAC Name: (butan-2-yl)lithium SMILES: [Li]C(C)CC

Pricing & Availability
Specifications

PubChem CID	102446
CAS	598-30-1
Molecular Weight (g/mol)	64.06
MDL Number	MFCD00009323
SMILES	[Li]C(C)CC
Synonym	sec-butyllithium,s-buli,s-butyllithium,s-butyl lithium,unii-5yv3gii1tb,lithium, 1-methylpropyl,5yv3gii1tb,secbutyllithium,b-butyllithium,sec-butyllitium
IUPAC Name	(butan-2-yl)lithium
InChI Key	VATDYQWILMGLEW-UHFFFAOYNA-N
Molecular Formula	C4H9Li

879

Buffer, Reference Standard, pH 3.00 ± 0.01 at 25°C, Ricca Chemical

Pricing & Availability
Specifications

CAS	877-24-7
For Use With (Equipment)	pH Meter and Electrode
Physical Form	Liquid
pH	3
Concentration	1X
For Use With (Application)	Calibration
Solution Type	pH Buffer

880

Potassium Chloride Conductivity Standard, 70,000 μS/cm (70 mS/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+]

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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

881

Thermo Scientific Chemicals MES, 1.0M buffer soln., pH 7.0

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Specifications

PubChem CID	16218417
CAS	145224-94-8
Molecular Weight (g/mol)	213.25
MDL Number	MFCD00149409
SMILES	O.OS(=O)(=O)CCN1CCOCC1
IUPAC Name	2-(morpholin-4-yl)ethane-1-sulfonic acid hydrate
InChI Key	MIIIXQJBDGSIKL-UHFFFAOYSA-N
Molecular Formula	C6H15NO5S

882

Bis-Tris, ≥98% (Dry Basis), Ultrapure

CAS: 6976-37-0 Molecular Formula: C8H19NO5 Molecular Weight (g/mol): 209.242 MDL Number: MFCD00002853 InChI Key: OWMVSZAMULFTJU-UHFFFAOYSA-N Synonym: bis[2 to Hydroxyethyl]imino to tris[hydroxymethyl]methane PubChem CID: 81462 ChEBI: CHEBI:41250 IUPAC Name: 2-[bis(2-hydroxyethyl)amino]-2-(hydroxymethyl)propane-1,3-diol SMILES: C(CO)N(CCO)C(CO)(CO)CO

Pricing & Availability
Specifications

PubChem CID	81462
CAS	6976-37-0
Molecular Weight (g/mol)	209.242
ChEBI	CHEBI:41250
MDL Number	MFCD00002853
SMILES	C(CO)N(CCO)C(CO)(CO)CO
Synonym	bis[2 to Hydroxyethyl]imino to tris[hydroxymethyl]methane
IUPAC Name	2-[bis(2-hydroxyethyl)amino]-2-(hydroxymethyl)propane-1,3-diol
InChI Key	OWMVSZAMULFTJU-UHFFFAOYSA-N
Molecular Formula	C8H19NO5

883

Thermo Scientific Chemicals Tricine, 0.5M buffer soln., pH 8.0

CAS: 4-1-5704 Molecular Formula: C6H13NO5 Molecular Weight (g/mol): 179.17 MDL Number: MFCD00004277 InChI Key: SEQKRHFRPICQDD-UHFFFAOYSA-N PubChem CID: 79784 ChEBI: CHEBI:39063 IUPAC Name: 2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]acetic acid SMILES: C(C(=O)O)NC(CO)(CO)CO

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Specifications

PubChem CID	79784
CAS	4-1-5704
Molecular Weight (g/mol)	179.17
ChEBI	CHEBI:39063
MDL Number	MFCD00004277
SMILES	C(C(=O)O)NC(CO)(CO)CO
IUPAC Name	2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]acetic acid
InChI Key	SEQKRHFRPICQDD-UHFFFAOYSA-N
Molecular Formula	C6H13NO5