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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 (6,428)
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Karl Fischer Buffers and Reagents (186)
Kjeldahl Buffers and Reagents (57)
Viscosity Standards (42)
Quality Control and Proficiency Samples (17)
Isotope Standards (4)
Matrix Modifiers (3)
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1
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Buffer Solution, pH 5.00 (Certified), Fisher Chemical™

Numéro MDL MFCD00146206
Symbole de stockage ChemAlert Gray
Nom chimique ou matériau Buffer Solution, pH 5.00
CAS 7732-18-5
Qualité Certified
Conditionnement Poly Bottle
pH 5.0
Point de fusion 0°C
Identification Pass Test
Point d’ébullition 100°C
Traçabilité au NIST Traceable to NIST.
Forme physique Liquid
2
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Buffer Solution, pH 10.00, Color-Coded Blue (Certified), Fisher Chemical™

Danger pour la santé 3 Emergency Overview
May cause eye, skin, and respiratory tract irritation. Use personal protective equipment. Ensure adequate ventilation. Wash off immediately with plenty of water for at least 15 minutes. Get medical attention immediately if symptoms occur. Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Obtain medical attention. Move to fresh air. If breathing is difficult, give oxygen. Get medical attention immediately if symptoms occur. Do not induce vomiting. Obtain medical attention. Obtain medical attention. .

NFPA

Health:1
Flammability:0
Instability:0
Symbole de stockage ChemAlert Gray
Danger pour la santé 2 CAUTION!
Qualité Certified
Identification Pass Test
Point d’ébullition 100°C
Gravité spécifique 1.013 at 25°C
Forme physique Liquid
Couleur Blue
Numéro MDL MFCD00146206
Nom chimique ou matériau Buffer Solution, pH 10.00, Color-Coded Blue
Absorbance Pass Test
CAS 1310-58-3
pH 10.0
Point de fusion 0°C
Traçabilité au NIST Traceable to NIST.
3
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Buffer Solution, pH 9.00 (Certified), Fisher Chemical™

Boric Acid/Potassium Chloride/Sodium Hydroxide

Numéro MDL MFCD00146206
Danger pour la santé 3 Emergency Overview
May cause eye, skin, and respiratory tract irritation. Use personal protective equipment. Ensure adequate ventilation. Wash off immediately with plenty of water for at least 15 minutes. Get medical attention immediately if symptoms occur. Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Obtain medical attention. Move to fresh air. If breathing is difficult, give oxygen. Get medical attention immediately if symptoms occur. Do not induce vomiting. Obtain medical attention. Obtain medical attention. .

NFPA

Health:1
Flammability:0
Instability:0
Symbole de stockage ChemAlert Gray
Nom chimique ou matériau Buffer Solution, pH 9.00
CAS 7732-18-5
Danger pour la santé 2 CAUTION!
Qualité Certified
pH 9.00
Point de fusion 0°C
Identification Pass Test
Point d’ébullition 100°C
Traçabilité au NIST Traceable to NIST.
Forme physique Liquid
4
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Buffer Solution, pH 8.00 (Certified), Fisher Chemical™

Potassium Phosphate Monobasic/Sodium Hydroxide

Numéro MDL MFCD00147253
Danger pour la santé 3 Emergency Overview
Irritating to eyes and skin. The toxicological properties have not been fully investigated. Use personal protective equipment. Ensure adequate ventilation. Wash off immediately with plenty of water for at least 15 minutes. Obtain medical attention. Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Obtain medical attention. Move to fresh air. If breathing is difficult, give oxygen. Get medical attention immediately if symptoms occur. Do not induce vomiting. Do not induce vomiting. Obtain medical attention.

NFPA

Health:2
Flammability:0
Instability:0
Symbole de stockage ChemAlert Gray
Nom chimique ou matériau Buffer Solution, pH 8.00
CAS 7732-18-5
Danger pour la santé 2 WARNING!
Qualité Certified
pH 8.0
Identification Pass Test
Traçabilité au NIST Traceable to NIST.
Forme physique Liquid
5
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Buffer Solution, pH 2.00 (Certified), Fisher Chemical™

Danger pour la santé 3 Emergency Overview
May cause skin, eye, and respiratory tract irritation. The toxicological properties have not been fully investigated. WARNING! This product contains a chemical known in the State of California to
Symbole de stockage ChemAlert Gray
Danger pour la santé 1 Signal Word: CAUTION!
Danger pour la santé 2 CAUTION!
Qualité Certified
Identification In Pass Test
Point d’ébullition 100°C
Forme physique Liquid
Couleur Undesignated
Numéro MDL MFCD00146206
Nom chimique ou matériau Buffer Solution, pH 2.00
CAS 7732-18-5
pH 2.00
Informations DOT DOT Class 8, : Corrosive
Point de fusion 0°C
Traçabilité au NIST Traceable to NIST.
Densité 1.0g/cm³
6

Buffer Solution, pH 4.00 (Certified), Fisher Chemical™

Couleur Undesignated
Numéro MDL MFCD00146206
Danger pour la santé 3 Emergency Overview
Contains a known or suspected carcinogen. The toxicological properties have not been fully investigated. Use personal protective equipment. Ensure adequate ventilation. Wash off immediately with plenty of water for at least 15 minutes. Get medical attention immediately if symptoms occur. Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Obtain medical attention. Move to fresh air. If breathing is difficult, give oxygen. Get medical attention immediately if symptoms occur. Do not induce vomiting. Do not induce vomiting. Obtain medical attention.

NFPA

Health:1
Flammability:0
Instability:0
Symbole de stockage ChemAlert Gray
Nom chimique ou matériau Buffer Solution, pH 4.00
CAS 67-56-1
Danger pour la santé 2 CAUTION!
Qualité Certified
pH 4.0
Identification Pass Test
Traçabilité au NIST Traceable to NIST.
Forme physique Liquid
Densité 1.0054g/cm³
7
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Buffer Solution, pH 3.00 (Certified), Fisher Chemical™

Danger pour la santé 3 Emergency Overview
May cause eye, skin, and respiratory tract irritation. The toxicological properties have not been fully investigated. Use personal protective equipment. Ensure adequate ventilation. Wash off immediately with plenty of water for at least 15 minutes. Get medical attention immediately if symptoms occur. Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Obtain medical attention. Move to fresh air. If breathing is difficult, give oxygen. Get medical attention immediately if symptoms occur. Do not induce vomiting. Do not induce vomiting. Obtain medical attention.

NFPA

Health:1
Flammability:0
Instability:0
Symbole de stockage ChemAlert Gray
Danger pour la santé 2 CAUTION!
Qualité Certified
Identification Pass Test
Point d’ébullition 100°C
Forme physique Liquid
Couleur Undesignated
Numéro MDL MFCD00146206
Nom chimique ou matériau Buffer Solution, pH 3.00
CAS 7732-18-5
pH 3.00
Point de fusion 0°C
Traçabilité au NIST Traceable to NIST.
Densité 0.7g/cm³
8
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Sodium Hypochlorite Solution (4-6%/Laboratory), Fisher Chemical™

CAS: 7681-52-9 Formule moléculaire: ClNaO Poids moléculaire (g/mol): 74.439 Numéro MDL: MFCD00011120 Clé InChI: SUKJFIGYRHOWBL-UHFFFAOYSA-N Synonyme: sodium hypochlorite,antiformin,sodium oxychloride,chlorox,clorox,javex,javelle water,hypochlorous acid, sodium salt,hypochlorite sodium,carrel-dakin solution CID PubChem: 23665760 ChEBI: CHEBI:32146 Nom IUPAC: sodium;hypochlorite SMILES: [O-]Cl.[Na+]

Poids moléculaire (g/mol) 74.439
Synonyme sodium hypochlorite,antiformin,sodium oxychloride,chlorox,clorox,javex,javelle water,hypochlorous acid, sodium salt,hypochlorite sodium,carrel-dakin solution
Numéro MDL MFCD00011120
CAS 7681-52-9
CID PubChem 23665760
ChEBI CHEBI:32146
Nom IUPAC sodium;hypochlorite
Clé InChI SUKJFIGYRHOWBL-UHFFFAOYSA-N
SMILES [O-]Cl.[Na+]
Formule moléculaire ClNaO
9
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Silver Nitrate Solution (0.1N (N/10)/Certified), Fisher Chemical™

CAS: 7761-88-8 Formule moléculaire: AgNO3 Poids moléculaire (g/mol): 169.87 Numéro MDL: MFCD00003414 Clé InChI: SQGYOTSLMSWVJD-UHFFFAOYSA-N Synonyme: silver nitrate,silvernitrate,lunar caustic,silbernitrat,argenti nitras,nitrate d'argent,nitric acid silver i salt,silver mononitrate,silver i nitrate,argerol CID PubChem: 24470 ChEBI: CHEBI:32130 Nom IUPAC: silver(1+) nitrate SMILES: [Ag+].[O-][N+]([O-])=O

Poids moléculaire (g/mol) 169.87
Synonyme silver nitrate,silvernitrate,lunar caustic,silbernitrat,argenti nitras,nitrate d'argent,nitric acid silver i salt,silver mononitrate,silver i nitrate,argerol
Numéro MDL MFCD00003414
CAS 7761-88-8
CID PubChem 24470
ChEBI CHEBI:32130
Nom IUPAC silver(1+) nitrate
Clé InChI SQGYOTSLMSWVJD-UHFFFAOYSA-N
SMILES [Ag+].[O-][N+]([O-])=O
Formule moléculaire AgNO3
10
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Sodium Thiosulfate Pentahydrate Solution (0.025N (N/40)/Certified), Fisher Chemical

CAS: 10102-17-7 Formule moléculaire: H10Na2O8S2 Poids moléculaire (g/mol): 248.172 Numéro MDL: MFCD00003499 Clé InChI: PODWXQQNRWNDGD-UHFFFAOYSA-L Synonyme: sodium thiosulfate pentahydrate,ametox,sodium thiosulfate, pentahydrate,antichlor,tinver,disodium thiosulfate pentahydrate,unii-hx1032v43m,ccris 3952,thiosulfuric acid, disodium salt, pentahydrate,sodium hyposulfite pentahydrate CID PubChem: 61475 ChEBI: CHEBI:32150 Nom IUPAC: disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane;pentahydrate SMILES: O.O.O.O.O.[O-]S(=O)(=S)[O-].[Na+].[Na+]

Poids moléculaire (g/mol) 248.172
Synonyme sodium thiosulfate pentahydrate,ametox,sodium thiosulfate, pentahydrate,antichlor,tinver,disodium thiosulfate pentahydrate,unii-hx1032v43m,ccris 3952,thiosulfuric acid, disodium salt, pentahydrate,sodium hyposulfite pentahydrate
Numéro MDL MFCD00003499
CAS 10102-17-7
CID PubChem 61475
ChEBI CHEBI:32150
Nom IUPAC disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane;pentahydrate
Clé InChI PODWXQQNRWNDGD-UHFFFAOYSA-L
SMILES O.O.O.O.O.[O-]S(=O)(=S)[O-].[Na+].[Na+]
Formule moléculaire H10Na2O8S2
11
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Sodium Thiosulfate Pentahydrate Solution (0.1N (N/10)/Certified), Fisher Chemical™

CAS: 10102-17-7 Formule moléculaire: H10Na2O8S2 Poids moléculaire (g/mol): 248.172 Numéro MDL: MFCD00003499 Clé InChI: PODWXQQNRWNDGD-UHFFFAOYSA-L Synonyme: sodium thiosulfate pentahydrate,ametox,sodium thiosulfate, pentahydrate,antichlor,tinver,disodium thiosulfate pentahydrate,unii-hx1032v43m,ccris 3952,thiosulfuric acid, disodium salt, pentahydrate,sodium hyposulfite pentahydrate CID PubChem: 61475 ChEBI: CHEBI:32150 Nom IUPAC: disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane;pentahydrate SMILES: O.O.O.O.O.[O-]S(=O)(=S)[O-].[Na+].[Na+]

Poids moléculaire (g/mol) 248.172
Synonyme sodium thiosulfate pentahydrate,ametox,sodium thiosulfate, pentahydrate,antichlor,tinver,disodium thiosulfate pentahydrate,unii-hx1032v43m,ccris 3952,thiosulfuric acid, disodium salt, pentahydrate,sodium hyposulfite pentahydrate
Numéro MDL MFCD00003499
CAS 10102-17-7
CID PubChem 61475
ChEBI CHEBI:32150
Nom IUPAC disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane;pentahydrate
Clé InChI PODWXQQNRWNDGD-UHFFFAOYSA-L
SMILES O.O.O.O.O.[O-]S(=O)(=S)[O-].[Na+].[Na+]
Formule moléculaire H10Na2O8S2
12
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Electrode Storage Solution, Fisher BioReagents™

For use in storage of pH electrodes

13
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HEPES (Fine White Crystals/Molecular Biology), Fisher BioReagents™

Commonly used buffering agent | CAS: 7365-45-9 | C8H18N2O4S | 238.30 g/mol

Poids moléculaire (g/mol) 238.30
Danger pour la santé 3 Emergency Overview
Causes eye, skin, and respiratory tract irritation. Use personal protective equipment. Ensure adequate ventilation. Wash off immediately with plenty of water for at least 15 minutes. Obtain medical attention. Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Obtain medical attention. Move to fresh air. If breathing is difficult, give oxygen. Obtain medical attention. Do not induce vomiting. Obtain medical attention. Obtain medical attention. .

NFPA

Health:2
Flammability:1
Instability:1
Symbole de stockage ChemAlert Gray
Danger pour la santé 2 WARNING!
Qualité Molecular Biology
ChEBI CHEBI:42334
SMILES OCCN1CCN(CCS(O)(=O)=O)CC1
Identification Pass Test
DNase DNase free
Merck Index 15, 4689
Protéase Protease free
Température de stockage RT
Formule moléculaire C8H18N2O4S
Informations sur la solubilité Soluble in water
Couleur White
Numéro MDL MFCD00006158
Nom chimique ou matériau HEPES
Absorbance 0.01 max. (0.1M solution) at 280nm
CAS 7365-45-9
CID PubChem 23831
Notes de qualité de la pureté DNase-, RNase- and Protease-Free
pH 5.0 to 6.5
Clé InChI JKMHFZQWWAIEOD-UHFFFAOYSA-N
Plage de pourcentage du dosage ≥99 %
Pourcentage de pureté ≥99%
14
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Tris Base (White Crystals or Crystalline Powder/Molecular Biology), Fisher BioReagents™

CAS: 77-86-1 Formule moléculaire: C4H11NO3 Poids moléculaire (g/mol): 121.136 Clé InChI: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonyme: Trimethylol Aminomethane,Tris(hydroxymethyl)aminomethane,2-Amino-2-(hydroxymethyl)-1,3-propanediol,THAM,Tris base,Trometamol CID PubChem: 6503 ChEBI: CHEBI:9754 Nom IUPAC: 2-amino-2-(hydroxymethyl)propane-1,3-diol SMILES: C(C(CO)(CO)N)O

Poids moléculaire (g/mol) 121.136
Synonyme Trimethylol Aminomethane,Tris(hydroxymethyl)aminomethane,2-Amino-2-(hydroxymethyl)-1,3-propanediol,THAM,Tris base,Trometamol
CAS 77-86-1
CID PubChem 6503
ChEBI CHEBI:9754
Nom IUPAC 2-amino-2-(hydroxymethyl)propane-1,3-diol
Clé InChI LENZDBCJOHFCAS-UHFFFAOYSA-N
SMILES C(C(CO)(CO)N)O
Formule moléculaire C4H11NO3
15
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Hydrogen Peroxide, 3% (Certified), Fisher Chemical

CAS: 7722-84-1 Formule moléculaire: H2O2 Poids moléculaire (g/mol): 34.014 Numéro MDL: MFCD00011333 Clé InChI: MHAJPDPJQMAIIY-UHFFFAOYSA-N Synonyme: oxydol,perhydrol,superoxol,interox,hydrogen dioxide,inhibine,peroxaan,albone,hioxyl,kastone CID PubChem: 784 ChEBI: CHEBI:16240 Nom IUPAC: hydrogen peroxide SMILES: OO

Poids moléculaire (g/mol) 34.014
Synonyme oxydol,perhydrol,superoxol,interox,hydrogen dioxide,inhibine,peroxaan,albone,hioxyl,kastone
Numéro MDL MFCD00011333
CAS 7722-84-1
CID PubChem 784
ChEBI CHEBI:16240
Nom IUPAC hydrogen peroxide
Clé InChI MHAJPDPJQMAIIY-UHFFFAOYSA-N
SMILES OO
Formule moléculaire H2O2