Buffers and Standards

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















Résultats de la recherche filtrée

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 |
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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. |
Couleur | Undesignated |
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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 |
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 |
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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 |
HYDRANAL™ - Water Standard 1.0, Standard for Karl Fischer titration (water content 1 mg/g = 0.1%), verified against NIST SRM 2890 & NMIJ CRM 4222, Honeywell™ Fluka™
CAS: 100-66-3 Formule moléculaire: C7H8O Poids moléculaire (g/mol): 108.14 Numéro MDL: MFCD00007941 Clé InChI: RDOXTESZEPMUJZ-UHFFFAOYSA-N Synonyme: Methoxybenzene,Methyl phenyl ether CID PubChem: 7519 ChEBI: CHEBI:16579 Nom IUPAC: anisole SMILES: COC1=CC=CC=C1
Poids moléculaire (g/mol) | 108.14 |
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Synonyme | Methoxybenzene,Methyl phenyl ether |
Numéro MDL | MFCD00007941 |
CAS | 100-66-3 |
CID PubChem | 7519 |
ChEBI | CHEBI:16579 |
Nom IUPAC | anisole |
Clé InChI | RDOXTESZEPMUJZ-UHFFFAOYSA-N |
SMILES | COC1=CC=CC=C1 |
Formule moléculaire | C7H8O |
HYDRANAL™ - Water Standard 0.1, Standard for Karl Fischer titration (water content 0.1 mg/g = 0.01%), verified against NIST SRM 2890 & NMIJ CRM 4222, Honeywell™ Fluka™
CAS: 95-47-6 Formule moléculaire: C8H10 Poids moléculaire (g/mol): 106.17 Numéro MDL: MFCD00008519 Clé InChI: CTQNGGLPUBDAKN-UHFFFAOYSA-N Nom IUPAC: 1,2-xylene SMILES: CC1=CC=CC=C1C
Poids moléculaire (g/mol) | 106.17 |
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Numéro MDL | MFCD00008519 |
CAS | 95-47-6 |
Nom IUPAC | 1,2-xylene |
Clé InChI | CTQNGGLPUBDAKN-UHFFFAOYSA-N |
SMILES | CC1=CC=CC=C1C |
Formule moléculaire | C8H10 |
Buffer Solution, pH 4.00, Color-Coded Red (Certified), Fisher Chemical™
pH/temperature conversions given on label
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 |
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Symbole de stockage ChemAlert | Gray |
Description | pH/temperature conversions given on label. |
Danger pour la santé 2 | CAUTION! |
Qualité | Certified |
Identification | Pass Test |
Point d’ébullition | 100°C |
Gravité spécifique | 1 |
Forme physique | Liquid |
Informations sur la solubilité | Soluble in water |
Couleur | Red |
Numéro MDL | MFCD00146206 |
Nom chimique ou matériau | Buffer Solution, pH 4.00, Color-Coded Red |
Absorbance | Pass Test |
Concentration or Composition (by Analyte or Components) | Potassium Hydrogen Phthalate |
CAS | 16423-68-0 |
pH | 4.0 |
Point de fusion | 0°C |
Traçabilité au NIST | Traceable to NIST. |
Densité | 1.0g/cm³ |
Danger pour la santé 3 | Emergency Overview May cause eye, skin, and respiratory tract irritation. Handle in accordance with good industrial hygiene and safety practice. 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. . . NFPA Health:1 Flammability:0 Instability:0 |
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Symbole de stockage ChemAlert | Gray |
Description | Potassium Phosphate Monobasic/Sodium Hydroxide. pH/temperature conversions given on label. |
Tension de vapeur | 760mmHg at 20°C |
Danger pour la santé 2 | CAUTION! |
Qualité | Certified |
Identification | Pass Test |
Point d’ébullition | 100°C |
Gravité spécifique | 1 |
Forme physique | Liquid |
Informations sur la solubilité | Soluble in water |
Couleur | Yellow |
Numéro MDL | MFCD00134130 |
Nom chimique ou matériau | Buffer Solution, pH 7.00, Color-Coded Yellow |
Absorbance | Pass Test |
CAS | 1934-21-0 |
pH | 7.00 |
Point de fusion | 0°C |
Traçabilité au NIST | Traceable to NIST. |
Densité | 1.0g/cm³ |
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 |
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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 |
Buffer Solution, pH 8.00 (Certified), Fisher Chemical™
Potassium Phosphate Monobasic/Sodium Hydroxide
Numéro MDL | MFCD00147253 |
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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 |
Buffer Solution, pH 9.00 (Certified), Fisher Chemical™
Boric Acid/Potassium Chloride/Sodium Hydroxide
Numéro MDL | MFCD00146206 |
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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 |
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 |
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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 |
HYDRANAL™ - Coulomat Oil, Reagent for coulometric KF titration in oils (anolyte solution), preferred for cells with diaphragm, Honeywell Fluka™
Anolyte for coulometric Karl Fischer titration in oils (chloroform-methanol-xylene-based), preferred for cells with diaphragm
Numéro UN | UN1992 |
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Thermo Scientific™ Orion™ pH Buffer Bottles
Perform accurate, reproducible pH calibrations with these color-coded buffer bottles.
Nom chimique ou matériau | pH Buffer, bottles |
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À utiliser avec (équipement) | pH Meter and Electrode |
Traçabilité au NIST | Yes |
Forme physique | Liquid |