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
Buffer Solution, pH 4.00, Color-Coded Red (Certified), Fisher Chemical™
pH/temperature conversions given on label
| Symbole de stockage de ChemAlert | Gray |
|---|---|
| Renseignements sur la solubilité | Soluble in water |
| Niveau | Certified |
| Désignation | Pass Test |
| Risque pour la santé 2 | CAUTION! |
| Risque 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 |
| Point d’ébullition | 100°C |
| Gravité spécifique | 1 |
| Forme physique | Liquid |
| Couleur | Red |
| Numéro MDL | MFCD00146206 |
| Absorbance | Pass Test |
| CAS | 16423-68-0 |
| pH | 4.0 |
| Point de fusion | 0°C |
| Nom ou substance chimique | Buffer Solution, pH 4.00, Color-Coded Red |
| Traçabilité NIST | Traceable to NIST. |
| Concentration ou composition (par analyte ou composants) | Potassium Hydrogen Phthalate |
| Aperçu général | pH/temperature conversions given on label. |
| Densité | 1.0g/cm³ |
Buffer Solution, pH 7.40 (Certified), Fisher Chemical™
Potassium Phosphate Monobasic/Sodium Hydroxide
| Numéro MDL | MFCD00134130 |
|---|---|
| Symbole de stockage de ChemAlert | Gray |
| CAS | 7732-18-5 |
| Niveau | Certified |
| Emballage | Poly Bottle |
| Désignation | Pass Test |
| pH | 7.4 |
| Point de fusion | 0°C |
| Nom ou substance chimique | Buffer Solution, pH 7.40 |
| Traçabilité NIST | Traceable to NIST. |
| Point d’ébullition | 100°C |
| Forme physique | Liquid |
| Densité | 1.0g/cm³ |
Buffer Solution, pH 10.00 (Certified), Fisher Chemical™
Potassium Carbonate/Potassium Tetraborate/Potassium Hydroxide/Disodium EDTA Dihydrate
| Couleur | Colorless |
|---|---|
| Numéro MDL | MFCD00146206 |
| Symbole de stockage de ChemAlert | Gray |
| CAS | 12228-88-5 |
| Niveau | Certified |
| Désignation | Pass Test |
| pH | 10 |
| Nom ou substance chimique | Buffer Solution, pH 10.00 |
| Traçabilité NIST | Traceable to NIST. |
| Risque pour la santé 2 | CAUTION! |
| Risque pour la santé 3 | Emergency Overview May cause eye, skin, and respiratory tract irritation. Handle in accordance with good industrial hygiene and safety practice. Wear personal protective equipment. 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 |
| Forme physique | Liquid |
Buffer Solution, pH 3.00 (Certified), Fisher Chemical™
| Symbole de stockage de ChemAlert | Gray |
|---|---|
| Niveau | Certified |
| Désignation | Pass Test |
| Risque pour la santé 2 | CAUTION! |
| Risque 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 |
| Point d’ébullition | 100°C |
| Forme physique | Liquid |
| Couleur | Undesignated |
| Numéro MDL | MFCD00146206 |
| CAS | 7732-18-5 |
| pH | 3.00 |
| Point de fusion | 0°C |
| Nom ou substance chimique | Buffer Solution, pH 3.00 |
| Traçabilité NIST | Traceable to NIST. |
| Densité | 0.7g/cm³ |
| Symbole de stockage de ChemAlert | Gray |
|---|---|
| Renseignements sur la solubilité | Soluble in water |
| Niveau | Certified |
| Désignation | Pass Test |
| Risque pour la santé 2 | CAUTION! |
| Risque 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 |
| Point d’ébullition | 100°C |
| Gravité spécifique | 1 |
| Forme physique | Liquid |
| Couleur | Yellow |
| Numéro MDL | MFCD00134130 |
| Absorbance | Pass Test |
| Pression de vapeur | 760mmHg at 20°C |
| CAS | 1934-21-0 |
| pH | 7.00 |
| Point de fusion | 0°C |
| Nom ou substance chimique | Buffer Solution, pH 7.00, Color-Coded Yellow |
| Traçabilité NIST | Traceable to NIST. |
| Aperçu général | Potassium Phosphate Monobasic/Sodium Hydroxide. pH/temperature conversions given on label. |
| Densité | 1.0g/cm³ |
Buffer Solution, pH 6.00 (Certified), Fisher Chemical™
| Symbole de stockage de ChemAlert | Gray |
|---|---|
| Niveau | Certified |
| Désignation | Pass Test |
| Risque pour la santé 2 | CAUTION! |
| Risque 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 |
| Point d’ébullition | 100°C |
| Forme physique | Liquid |
| Couleur | Undesignated |
| Numéro MDL | MFCD00134130 |
| CAS | 1310-73-2 |
| pH | 6.00 |
| Point de fusion | 0°C |
| Nom ou substance chimique | Buffer Solution, pH 6.00 |
| Traçabilité NIST | Traceable to NIST. |
Buffer Concentrate, pH 7.00 (Certified), Fisher Chemical™
| Poids moléculaire (g/mol) | 380.17 |
|---|---|
| Numéro MDL | MFCD00146206 |
| Symbole de stockage de ChemAlert | Gray |
| CAS | 7664-38-2 |
| Niveau | Certified |
| Emballage | Poly Bottle |
| Désignation | Pass Test |
| Nom ou substance chimique | Buffer Concentrate, pH 7.00 |
| Clé InChI | UEUXEKPTXMALOB-UHFFFAOYSA-J |
| Traçabilité NIST | Traceable to NIST. |
| Forme physique | Liquid |
| Formule moléculaire | C10H12N2Na4O8 |
Buffer Solution, pH 7.00 (Certified), Fisher Chemical™
Potassium Phosphate Monobasic/Sodium Hydroxide
| Symbole de stockage de ChemAlert | Gray |
|---|---|
| Niveau | Certified |
| Désignation | Pass Test |
| Forme physique | Liquid |
| Couleur | Colorless |
| Synonyme | Chlorine Titrimeter Reagent |
| Numéro MDL | MFCD00134130 |
| Pression de vapeur | 14mmHg at 20°C |
| CAS | 7732-18-5 |
| pH | 7.00 |
| Point de fusion | 0°C |
| Nom ou substance chimique | Buffer Solution, pH 7.00 |
| Traçabilité NIST | Traceable to NIST. |
| Densité | 1.003g/cm³ |
Buffer Solution, pH 5.00 (Certified), Fisher Chemical™
| Numéro MDL | MFCD00146206 |
|---|---|
| Symbole de stockage de ChemAlert | Gray |
| CAS | 7732-18-5 |
| Niveau | Certified |
| Emballage | Poly Bottle |
| Désignation | Pass Test |
| pH | 5.0 |
| Point de fusion | 0°C |
| Nom ou substance chimique | Buffer Solution, pH 5.00 |
| Traçabilité NIST | Traceable to NIST. |
| Point d’ébullition | 100°C |
| Forme physique | Liquid |
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 PubChem CID: 24470 ChEBI: CHEBI:32130 Nom de l’IUPAC: silver(1+) nitrate SOURIRES: [Ag+].[O-][N+]([O-])=O
| Poids moléculaire (g/mol) | 169.87 |
|---|---|
| PubChem CID | 24470 |
| 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 |
| Nom de l’IUPAC | silver(1+) nitrate |
| CAS | 7761-88-8 |
| ChEBI | CHEBI:32130 |
| Clé InChI | SQGYOTSLMSWVJD-UHFFFAOYSA-N |
| SOURIRES | [Ag+].[O-][N+]([O-])=O |
| Formule moléculaire | AgNO3 |
Tris (Tromethamine) (Granular/USP), Fisher Chemical™
CAS: 77-86-1 Formule moléculaire: C4H11NO3 Poids moléculaire (g/mol): 121.136 Numéro MDL: MFCD00004679 Clé InChI: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonyme: Trishydroxymethylaminomethane,Tris Buffer,Tris,THAM,Trizma™,2-Amino-2-(hydroxymethyl)-1,3-propanediol,Tris base,Tris(hydroxymethyl)aminomethane,Trometamol PubChem CID: 6503 ChEBI: CHEBI:9754 Nom de l’IUPAC: 2-amino-2-(hydroxymethyl)propane-1,3-diol SOURIRES: C(C(CO)(CO)N)O
| Poids moléculaire (g/mol) | 121.136 |
|---|---|
| PubChem CID | 6503 |
| Synonyme | Trishydroxymethylaminomethane,Tris Buffer,Tris,THAM,Trizma™,2-Amino-2-(hydroxymethyl)-1,3-propanediol,Tris base,Tris(hydroxymethyl)aminomethane,Trometamol |
| Numéro MDL | MFCD00004679 |
| Nom de l’IUPAC | 2-amino-2-(hydroxymethyl)propane-1,3-diol |
| CAS | 77-86-1 |
| ChEBI | CHEBI:9754 |
| Clé InChI | LENZDBCJOHFCAS-UHFFFAOYSA-N |
| SOURIRES | C(C(CO)(CO)N)O |
| Formule moléculaire | C4H11NO3 |
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 PubChem CID: 61475 ChEBI: CHEBI:32150 Nom de l’IUPAC: disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane;pentahydrate SOURIRES: O.O.O.O.O.[O-]S(=O)(=S)[O-].[Na+].[Na+]
| Poids moléculaire (g/mol) | 248.172 |
|---|---|
| PubChem CID | 61475 |
| Synonyme | sodium thiosulfate pentahydrate,ametox,sodium thiosulfate, pentahydrate,antichlor,tinver,disodium thiosulfate pentahydrate,unii-hx1032v43m,ccris 3952,thiosulfuric acid, disodium salt, pentahydrate,sodium hyposulfite pentahydrate |
| Numéro MDL | MFCD00003499 |
| Nom de l’IUPAC | disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane;pentahydrate |
| CAS | 10102-17-7 |
| ChEBI | CHEBI:32150 |
| Clé InChI | PODWXQQNRWNDGD-UHFFFAOYSA-L |
| SOURIRES | O.O.O.O.O.[O-]S(=O)(=S)[O-].[Na+].[Na+] |
| Formule moléculaire | H10Na2O8S2 |
Buffer Solution, pH 4.00 (Certified), Fisher Chemical™
| Couleur | Undesignated |
|---|---|
| Numéro MDL | MFCD00146206 |
| Symbole de stockage de ChemAlert | Gray |
| CAS | 67-56-1 |
| Niveau | Certified |
| Désignation | Pass Test |
| pH | 4.0 |
| Nom ou substance chimique | Buffer Solution, pH 4.00 |
| Traçabilité NIST | Traceable to NIST. |
| Risque pour la santé 2 | CAUTION! |
| Risque 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 |
| Forme physique | Liquid |
| Densité | 1.0054g/cm³ |
Phosphate Buffered Saline (PBS), 10X Powder, pH 7.4, Fisher BioReagents™
Phosphate Buffered Saline (PBS), 10X Powder provides a convenient way to make 1 L of 10X stock PBS solution.