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

Étalons de chromatographie (6,438)

Solutions de chimie générale (2,860)

Normes de spectroscopie (2,009)

Matrices vierges et solutions de normalisation (1,205)

Tampons pour l’électrochimie (989)

Tampons pour les sciences de la vie (943)

Normes électrochimiques (647)

Normes de reherche de environnementales (401)

Réactifs et tampons Karl Fischer (186)

Tampons et réactifs de Kjeldahl (57)

Étalons de viscosité (42)

Échantillons de contrôle qualité et de compétence (16)

Étalons d’isotopes (4)

Modificateurs de matrices (3)

Étalons d'osmolalité (3)

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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+]

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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

Traceable™ Conductivity Calibration Standards Certified Reference Material (CRM), NIST tested, Fisherbrand™

Use NIST-traceable reference materials for the highest accuracy available. Traceable™ Conductivity Calibration Standards Certified Reference Material (CRM) offer easy calibration with included instructions and temperature chart.

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Couleur	Clear
Certifications/Conformité	ISO 17034
Type	Conductivity Standard
Nom chimique ou matériau	Conductivity Standard
À utiliser avec (équipement)	Conductivity Meter
Conditionnement	Bottle
Solubilité	Soluble in water
Type de solution	Calibration Solution
Technique	Calibration of Conductivity Instrument

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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

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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

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Buffer Solution, pH 7.40 (Certified), Fisher Chemical™

Potassium Phosphate Monobasic/Sodium Hydroxide

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Numéro MDL	MFCD00134130
Symbole de stockage ChemAlert	Gray
Nom chimique ou matériau	Buffer Solution, pH 7.40
CAS	7732-18-5
Qualité	Certified
Conditionnement	Poly Bottle
pH	7.4
Point de fusion	0°C
Identification	Pass Test
Point d’ébullition	100°C
Traçabilité au NIST	Traceable to NIST.
Forme physique	Liquid
Densité	1.0g/cm³

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

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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

Buffer Solution, pH 7.00, Color-Coded Yellow (Certified), Fisher Chemical™

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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
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

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Buffer Concentrate, pH 7.00 (Certified), Fisher Chemical™

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Poids moléculaire (g/mol)	380.17
Numéro MDL	MFCD00146206
Symbole de stockage ChemAlert	Gray
Nom chimique ou matériau	Buffer Concentrate, pH 7.00
CAS	7664-38-2
Qualité	Certified
Conditionnement	Poly Bottle
Clé InChI	UEUXEKPTXMALOB-UHFFFAOYSA-J
Identification	Pass Test
Traçabilité au NIST	Traceable to NIST.
Forme physique	Liquid
Formule moléculaire	C10H12N2Na4O8

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Buffer Solution, pH 7.00 (Certified), Fisher Chemical™

Potassium Phosphate Monobasic/Sodium Hydroxide

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Symbole de stockage ChemAlert	Gray
Tension de vapeur	14mmHg at 20°C
Qualité	Certified
Identification	Pass Test
Forme physique	Liquid
Couleur	Colorless
Synonyme	Chlorine Titrimeter Reagent
Numéro MDL	MFCD00134130
Nom chimique ou matériau	Buffer Solution, pH 7.00
CAS	7732-18-5
pH	7.00
Point de fusion	0°C
Traçabilité au NIST	Traceable to NIST.
Densité	1.003g/cm³

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Buffer Solution, pH 6.00 (Certified), Fisher Chemical™

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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
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	MFCD00134130
Nom chimique ou matériau	Buffer Solution, pH 6.00
CAS	1310-73-2
pH	6.00
Point de fusion	0°C
Traçabilité au NIST	Traceable to NIST.

Buffer Solution, pH 10.00 (Certified), Fisher Chemical™

Potassium Carbonate/Potassium Tetraborate/Potassium Hydroxide/Disodium EDTA Dihydrate

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Couleur	Colorless
Numéro MDL	MFCD00146206
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. 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
Symbole de stockage ChemAlert	Gray
Nom chimique ou matériau	Buffer Solution, pH 10.00
CAS	12228-88-5
Danger pour la santé 2	CAUTION!
Qualité	Certified
pH	10
Identification	Pass Test
Traçabilité au NIST	Traceable to NIST.
Forme physique	Liquid

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Buffer Solution, pH 3.00 (Certified), Fisher Chemical™

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Spécifications

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

Buffer Solution, pH 4.00, Color-Coded Red (Certified), Fisher Chemical™

pH/temperature conversions given on label

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Spécifications

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
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

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Tris Base (White Crystals or Crystalline Powder/Triple-Crystallized), Fisher BioReagents™

For sensitive molecular biology, tissue culture, and electrophoresis methods | CAS: 77-86-1 | C4H11NO3 | 121.136 g/mol

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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

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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

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TBE Buffer, Tris-Borate-EDTA, 10X Solution, Electrophoresis, Fisher BioReagents™

CAS: 10043-35-3 Synonyme: TBE

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Synonyme	TBE
CAS	10043-35-3

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