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

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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)
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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)
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Technique

AA (467)
Acidimetry (3)
Calibrating the absorbance of spectrophotometers (1)
Calibration (7)
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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

301 – 315 of 44,631 results

301

Ferric Chloride CS, USP/EP Yellow Primary Solution, Ricca Chemical

CAS: 10025-77-1 Molecular Formula: Cl3FeH12O6 Molecular Weight (g/mol): 270.29 MDL Number: MFCD00149712 InChI Key: NQXWGWZJXJUMQB-UHFFFAOYSA-K IUPAC Name: iron(3+) hexahydrate trichloride SMILES: O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[Fe+3]

Pricing & Availability
Specifications

CAS	10025-77-1
Molecular Weight (g/mol)	270.29
MDL Number	MFCD00149712
SMILES	O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[Fe+3]
IUPAC Name	iron(3+) hexahydrate trichloride
InChI Key	NQXWGWZJXJUMQB-UHFFFAOYSA-K
Molecular Formula	Cl3FeH12O6

302

Ceric Sulfate, 0.100 N (N/10) in 2 N Sulfuric Acid, Ricca Chemical

CAS: 13590-82-4 Molecular Formula: CeO8S2 Molecular Weight (g/mol): 332.23 MDL Number: MFCD00148852 InChI Key: VZDYWEUILIUIDF-UHFFFAOYSA-J Synonym: ceric sulfate,cerium iv sulfate,ceric disulfate,ceric sulphate,cerium disulfate,cerium 4+ sulfate,cerium 4+ disulphate,unii-4f66fi5t7x,sulfuric acid, cerium 4+ salt 2:1,cerium 4+ disulfate PubChem CID: 159684 IUPAC Name: λ4-cerium(4+) disulfate SMILES: [Ce+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O

Pricing & Availability
Specifications

PubChem CID	159684
CAS	13590-82-4
Molecular Weight (g/mol)	332.23
MDL Number	MFCD00148852
SMILES	[Ce+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O
Synonym	ceric sulfate,cerium iv sulfate,ceric disulfate,ceric sulphate,cerium disulfate,cerium 4+ sulfate,cerium 4+ disulphate,unii-4f66fi5t7x,sulfuric acid, cerium 4+ salt 2:1,cerium 4+ disulfate
IUPAC Name	λ4-cerium(4+) disulfate
InChI Key	VZDYWEUILIUIDF-UHFFFAOYSA-J
Molecular Formula	CeO8S2

303

Zinc Sulfate, 0.0500 M (M/20), Ricca Chemical

CAS: 7446-20-0 Molecular Formula: H14O11SZn Molecular Weight (g/mol): 287.54 MDL Number: MFCD00149894 InChI Key: RZLVQBNCHSJZPX-UHFFFAOYSA-L Synonym: zinc sulfate heptahydrate,zinc sulfate jan,zinc sulfate 1:1 heptahydrate,unii-n57ji2k7wp,zinc vitriol heptahydrate,zinc sulfate heptahydrate 1:1:7,white vitriol heptahydrate,ccris 5563,zinc sulfate znso4 heptahydrate,znso4.7h2o PubChem CID: 62640 ChEBI: CHEBI:32312 IUPAC Name: zinc(2+) heptahydrate sulfate SMILES: O.O.O.O.O.O.O.[Zn++].[O-]S([O-])(=O)=O

Pricing & Availability
Specifications

PubChem CID	62640
CAS	7446-20-0
Molecular Weight (g/mol)	287.54
ChEBI	CHEBI:32312
MDL Number	MFCD00149894
SMILES	O.O.O.O.O.O.O.[Zn++].[O-]S([O-])(=O)=O
Synonym	zinc sulfate heptahydrate,zinc sulfate jan,zinc sulfate 1:1 heptahydrate,unii-n57ji2k7wp,zinc vitriol heptahydrate,zinc sulfate heptahydrate 1:1:7,white vitriol heptahydrate,ccris 5563,zinc sulfate znso4 heptahydrate,znso4.7h2o
IUPAC Name	zinc(2+) heptahydrate sulfate
InChI Key	RZLVQBNCHSJZPX-UHFFFAOYSA-L
Molecular Formula	H14O11SZn

304

Sodium Hydroxide, 6.00 N, Ricca Chemical

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC Name: sodium;hydroxide SMILES: [OH-].[Na+]

Pricing & Availability
Specifications

PubChem CID	14798
CAS	1310-73-2
Molecular Weight (g/mol)	39.997
ChEBI	CHEBI:32145
SMILES	[OH-].[Na+]
Synonym	sodium hydroxide,caustic soda,sodium hydrate,white caustic,soda lye,aetznatron,ascarite,sodium hydroxide na oh,sodium hydroxide solution,soda, caustic
IUPAC Name	sodium;hydroxide
InChI Key	HEMHJVSKTPXQMS-UHFFFAOYSA-M
Molecular Formula	HNaO

305

Nitrate Nitrogen Standard, 10 ppm N (44.27 ppm NO₃^-), Ricca Chemical

CAS: 7757-79-1 Molecular Formula: KNO3 Molecular Weight (g/mol): 101.10 MDL Number: MFCD00011409 InChI Key: FGIUAXJPYTZDNR-UHFFFAOYSA-N PubChem CID: 24434 ChEBI: CHEBI:63043 IUPAC Name: potassium nitrate SMILES: [K+].[O-][N+]([O-])=O

Pricing & Availability
Specifications

PubChem CID	24434
CAS	7757-79-1
Molecular Weight (g/mol)	101.10
ChEBI	CHEBI:63043
MDL Number	MFCD00011409
SMILES	[K+].[O-][N+]([O-])=O
IUPAC Name	potassium nitrate
InChI Key	FGIUAXJPYTZDNR-UHFFFAOYSA-N
Molecular Formula	KNO3

306

Iron AA Standard, 1000 ppm Fe in 3% HNO₃, Ricca Chemical

CAS: 7439-89-6 Molecular Formula: Fe Molecular Weight (g/mol): 55.85 MDL Number: MFCD00010999 InChI Key: XEEYBQQBJWHFJM-UHFFFAOYSA-N PubChem CID: 23925 ChEBI: CHEBI:82664 IUPAC Name: iron SMILES: [Fe]

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Specifications

PubChem CID	23925
CAS	7439-89-6
Molecular Weight (g/mol)	55.85
ChEBI	CHEBI:82664
MDL Number	MFCD00010999
SMILES	[Fe]
IUPAC Name	iron
InChI Key	XEEYBQQBJWHFJM-UHFFFAOYSA-N
Molecular Formula	Fe

307

EDTA Titrant, 0.0500 M (M/20), Ricca Chemical

CAS: 6381-92-6 Molecular Formula: C10H18N2Na2O10 Molecular Weight (g/mol): 372.24 MDL Number: MFCD00150037,MFCD00003541 InChI Key: OVBJJZOQPCKUOR-UHFFFAOYSA-L Synonym: edta disodium salt,cal-ex decalcifier,buffer solution, ph 10.00,sodium di ethylenediamine tetraacetate dihydrate,ethylenediamine tetraacetic acid, disodium salt dihydrate,ethylenediamine tetraacetic acid, disodium salt, standard solution,sodium di ethylenediamine tetraacetate standard solution,ethylenedinitrilo tetraacetic acid disodium, dihydrate, reagent, acs PubChem CID: 44120005 IUPAC Name: disodium 2-({2-[(carboxylatomethyl)(carboxymethyl)amino]ethyl}(carboxymethyl)amino)acetate dihydrate SMILES: O.O.[Na+].[Na+].OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O

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Specifications

PubChem CID	44120005
CAS	6381-92-6
Molecular Weight (g/mol)	372.24
MDL Number	MFCD00150037,MFCD00003541
SMILES	O.O.[Na+].[Na+].OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O
Synonym	edta disodium salt,cal-ex decalcifier,buffer solution, ph 10.00,sodium di ethylenediamine tetraacetate dihydrate,ethylenediamine tetraacetic acid, disodium salt dihydrate,ethylenediamine tetraacetic acid, disodium salt, standard solution,sodium di ethylenediamine tetraacetate standard solution,ethylenedinitrilo tetraacetic acid disodium, dihydrate, reagent, acs
IUPAC Name	disodium 2-({2-[(carboxylatomethyl)(carboxymethyl)amino]ethyl}(carboxymethyl)amino)acetate dihydrate
InChI Key	OVBJJZOQPCKUOR-UHFFFAOYSA-L
Molecular Formula	C10H18N2Na2O10

308

EDTA Titrant, 0.0100 M (M/100), Ricca Chemical

Pricing & Availability
Specifications

PubChem CID	44120005
CAS	6381-92-6
Molecular Weight (g/mol)	372.24
MDL Number	MFCD00150037,MFCD00003541
SMILES	O.O.[Na+].[Na+].OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O
Synonym	edta disodium salt,cal-ex decalcifier,buffer solution, ph 10.00,sodium di ethylenediamine tetraacetate dihydrate,ethylenediamine tetraacetic acid, disodium salt dihydrate,ethylenediamine tetraacetic acid, disodium salt, standard solution,sodium di ethylenediamine tetraacetate standard solution,ethylenedinitrilo tetraacetic acid disodium, dihydrate, reagent, acs
IUPAC Name	disodium 2-({2-[(carboxylatomethyl)(carboxymethyl)amino]ethyl}(carboxymethyl)amino)acetate dihydrate
InChI Key	OVBJJZOQPCKUOR-UHFFFAOYSA-L
Molecular Formula	C10H18N2Na2O10

309

Potassium Hydroxide, 0.100 N (N/10) in Isopropyl Alcohol, Ricca Chemical

CAS: 1310-58-3 Molecular Formula: HKO Molecular Weight (g/mol): 56.11 MDL Number: MFCD00003553 InChI Key: KWYUFKZDYYNOTN-UHFFFAOYSA-M Synonym: potassium hydroxide,caustic potash,potash lye,potassium hydrate,hydroxyde de potassium,potassa,potasse caustique,potassium hydroxide k oh,potassium hydroxide solution,caswell no. 693 PubChem CID: 14797 ChEBI: CHEBI:32035 IUPAC Name: potassium hydroxide SMILES: [OH-].[K+]

Pricing & Availability
Specifications

PubChem CID	14797
CAS	1310-58-3
Molecular Weight (g/mol)	56.11
ChEBI	CHEBI:32035
MDL Number	MFCD00003553
SMILES	[OH-].[K+]
Synonym	potassium hydroxide,caustic potash,potash lye,potassium hydrate,hydroxyde de potassium,potassa,potasse caustique,potassium hydroxide k oh,potassium hydroxide solution,caswell no. 693
IUPAC Name	potassium hydroxide
InChI Key	KWYUFKZDYYNOTN-UHFFFAOYSA-M
Molecular Formula	HKO

310

ZoBell's Solution, Oxidation-Reduction Potential (ORP) Standard, Ricca Chemical

Pricing & Availability
Specifications

Boiling Point	100°C
Name Note	Oxidation-Reduction Potential (ORP) Standard
CAS	7732-18-5
Physical Form	Liquid
CAS Min %	0.11
Chemical Name or Material	ZoBell's Solution
CAS Max %	0.11

311

Sulfosalicylic Acid, 3% (w/v), Ricca Chemical

CAS: 97-05-2 Molecular Formula: C7H6O6S Molecular Weight (g/mol): 218.179 InChI Key: YCPXWRQRBFJBPZ-UHFFFAOYSA-N Synonym: 5-sulfosalicylic acid,sulfosalicylic acid,5-sulphosalicylic acid,salicylsulfonic acid,benzoic acid, 2-hydroxy-5-sulfo,salicylic acid, sulfo,benzoic acid, 2-hydroxysulfo,sulphosalicylic acid,salicylic acid, 5-sulfo,2-hydroxybenzoic-5-sulfonic acid PubChem CID: 7322 ChEBI: CHEBI:68555 IUPAC Name: 2-hydroxy-5-sulfobenzoic acid SMILES: C1=CC(=C(C=C1S(=O)(=O)O)C(=O)O)O

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Specifications

PubChem CID	7322
CAS	97-05-2
Molecular Weight (g/mol)	218.179
ChEBI	CHEBI:68555
SMILES	C1=CC(=C(C=C1S(=O)(=O)O)C(=O)O)O
Synonym	5-sulfosalicylic acid,sulfosalicylic acid,5-sulphosalicylic acid,salicylsulfonic acid,benzoic acid, 2-hydroxy-5-sulfo,salicylic acid, sulfo,benzoic acid, 2-hydroxysulfo,sulphosalicylic acid,salicylic acid, 5-sulfo,2-hydroxybenzoic-5-sulfonic acid
IUPAC Name	2-hydroxy-5-sulfobenzoic acid
InChI Key	YCPXWRQRBFJBPZ-UHFFFAOYSA-N
Molecular Formula	C7H6O6S

312

Synthetic Seawater, ASTM D 1141 Substitute Ocean Water without Heavy Metals, Ricca Chemical

CAS: 7732-18-5 Molecular Formula: H2O Molecular Weight (g/mol): 18.02 InChI Key: XLYOFNOQVPJJNP-UHFFFAOYSA-N PubChem CID: 962 ChEBI: CHEBI:15377 IUPAC Name: water SMILES: O

Pricing & Availability
Specifications

PubChem CID	962
CAS	7732-18-5
Molecular Weight (g/mol)	18.02
ChEBI	CHEBI:15377
SMILES	O
IUPAC Name	water
InChI Key	XLYOFNOQVPJJNP-UHFFFAOYSA-N
Molecular Formula	H2O

313

Zinc AA Standard, 1000 ppm Zn in 3% HNO₃, Ricca Chemical

CAS: 7440-66-6 Molecular Formula: Zn Molecular Weight (g/mol): 65.38 MDL Number: MFCD00011291 InChI Key: HCHKCACWOHOZIP-UHFFFAOYSA-N PubChem CID: 23994 ChEBI: CHEBI:30185 IUPAC Name: zinc SMILES: [Zn]

Pricing & Availability
Specifications

PubChem CID	23994
CAS	7440-66-6
Molecular Weight (g/mol)	65.38
ChEBI	CHEBI:30185
MDL Number	MFCD00011291
SMILES	[Zn]
IUPAC Name	zinc
InChI Key	HCHKCACWOHOZIP-UHFFFAOYSA-N
Molecular Formula	Zn

314

Hexavalent Chromium Standard, 100 ppm Cr⁶⁺, Ricca Chemical

CAS: 7732-18-5

Pricing & Availability
Specifications

CAS	7732-18-5

315

Zinc Sulfate, 0.100 M (M/10), Ricca Chemical

Pricing & Availability
Specifications

PubChem CID	62640
CAS	7446-20-0
Molecular Weight (g/mol)	287.54
ChEBI	CHEBI:32312
MDL Number	MFCD00149894
SMILES	O.O.O.O.O.O.O.[Zn++].[O-]S([O-])(=O)=O
Synonym	zinc sulfate heptahydrate,zinc sulfate jan,zinc sulfate 1:1 heptahydrate,unii-n57ji2k7wp,zinc vitriol heptahydrate,zinc sulfate heptahydrate 1:1:7,white vitriol heptahydrate,ccris 5563,zinc sulfate znso4 heptahydrate,znso4.7h2o
IUPAC Name	zinc(2+) heptahydrate sulfate
InChI Key	RZLVQBNCHSJZPX-UHFFFAOYSA-L
Molecular Formula	H14O11SZn

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