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 (22,720)

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Life Science Buffers (3,956)

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Gel Filtration Standards (57)

Matrix Modifiers (29)

Osmolality Standards (13)

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Polarimetric Standards (6)

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Grade

AAS (55)
AAS Standard (11)
ACS (55)
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APHA/EPA (5)

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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 mL (1)
0.1 mol (1)
0.5 L (1)
0.5 mL (15)
0.5 mol (1)
1 Bottle (5)
1 Box (1)

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Percent Purity

≥14% (BF3) (1)
≥30% (RT) (1)
≥30% (titration) (1)
≥35% (RT) (1)
≥40% (3)
≥49% (2)
≥50% (3)

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pH

≥12 to ≤14 (6)
>11.5 (2)
>12 (44)
>13 (100)
>8 (1)
<0.5 (3)
<1 (99)

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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)
Crystalline (17)

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Technique

AA (471)
Acidimetry (3)
Calibrating the absorbance of spectrophotometers (1)
Calibration (7)
Calibration and Matrix Spikes (1)
Calibration and Verification (16)
Calibration and Verification of Kinematic and Dynamic Viscosity Test (15)

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Solution Type

Antigen Retrieval Reagent (1)
Aqueous (2)
Buffer (375)
Buffer, Storage (2)
Calibration (8)
Cleaning (1)
Colored pH Buffer (35)

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Search Within Results

691 – 705 of 43,316 results

691

Buffer solution pH 4, Citrate buffer

CAS: 68-04-2 | C₈H₅KO₄

Pricing & Availability
Specifications

Name Note	Phthalate buffer
CAS	7732-18-5
MDL Number	MFCD00130806
Color	Colorless
Traceability to NIST	Traceable to NIST
Packaging	Plastic bottle
Physical Form	Liquid
pH	3.98 to 4.02 (20°C)
Chemical Name or Material	Buffer solution pH 4
Molecular Formula	C₈H₅KO₄
Formula Weight	204.23

692

Lithium aluminum hydride, 4.0M solution in diethyl ether, AcroSeal™

CAS: 16853-85-3 | AlH4Li | 37.95 g/mol

Pricing & Availability
Specifications

Linear Formula	LiAIH₄
Molecular Weight (g/mol)	37.95
InChI Key	OCZDCIYGECBNKL-UHFFFAOYSA-N
Density	0.7100g/mL
PubChem CID	21226445
Name Note	4.0M Solution in Diethyl Ether
Percent Purity	18.0 to 22.0% (as LiAlH4)
Fieser	01,581; 02,242; 03,176; 04,291; 05,382; 06,325; 07,196; 08,286; 09,274; 10,236; 11,289; 12,272; 13,61; 14,190; 15,184; 16,133; 17,162
Formula Weight	37.95
Color	Colorless
Physical Form	Liquid
Chemical Name or Material	Lithium Aluminum hydride
SMILES	[Li+].[AlH4-]
Merck Index	15, 344
CAS	60-29-7
Health Hazard 3	GHS P Statement Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Keep away from any possible contact with water, because of violent reaction and possible flash fire. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Do not breathe dust/fume/gas/mist/vapors/spray.
MDL Number	MFCD00011075
Health Hazard 2	GHS H Statement Causes severe skin burns and eye damage. Harmful if swallowed. May cause drowsiness or dizziness. In contact with water releases flammable gases which may ignite spontaneously. Extremely flammable liquid and vapor. May form explosive peroxides. Repeated exposure may cause skin dryness or cracking.
Flash Point	−017°C
Solubility Information	Solubility in water: vigorous reaction.
Health Hazard 1	Danger
Synonym	lithium aluminum hydride,lithium aluminum hydride,aluminum lithium hydride,lithiumaluminiumhydride,aluminum iii lithium hydride,lithium alanate,lithium aluminum tetrahydride,lithiumaluminiumhydrid,litiumaluminum hydride,lithim aluminum hydride
Recommended Storage	Product may develop some turbidity or precipitate
IUPAC Name	lithium(1+) alumanuide
Molecular Formula	AlH4Li
Specific Gravity	0.71

693

Sulfuric acid, 1.0N Standardized Solution

CAS: 7664-93-9 Molecular Formula: H2O4S Molecular Weight (g/mol): 98.07 MDL Number: MFCD00064589 InChI Key: QAOWNCQODCNURD-UHFFFAOYSA-N PubChem CID: 1118 ChEBI: CHEBI:26836 IUPAC Name: sulfuric acid SMILES: OS(O)(=O)=O

Pricing & Availability
Specifications

PubChem CID	1118
CAS	7664-93-9
Molecular Weight (g/mol)	98.07
ChEBI	CHEBI:26836
MDL Number	MFCD00064589
SMILES	OS(O)(=O)=O
IUPAC Name	sulfuric acid
InChI Key	QAOWNCQODCNURD-UHFFFAOYSA-N
Molecular Formula	H2O4S

694

Potassium Chloride Saturated, Electrode Filling Solution, Certified, ≥ 4.0M, LabChem™

CAS: 7447-40-7 Molecular Formula: ClK Molecular Weight (g/mol): 74.55 MDL Number: MFCD00011360 InChI Key: WCUXLLCKKVVCTQ-UHFFFAOYSA-M Synonym: potassium chloride,enseal,muriate of potash,klotrix,sylvite,slow-k,potassium chloride kcl,klor-con,chlorvescent,kalitabs PubChem CID: 4873 ChEBI: CHEBI:32588 IUPAC Name: potassium chloride SMILES: [Cl-].[K+]

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Specifications

PubChem CID	4873
CAS	7447-40-7
Molecular Weight (g/mol)	74.55
ChEBI	CHEBI:32588
MDL Number	MFCD00011360
SMILES	[Cl-].[K+]
Synonym	potassium chloride,enseal,muriate of potash,klotrix,sylvite,slow-k,potassium chloride kcl,klor-con,chlorvescent,kalitabs
IUPAC Name	potassium chloride
InChI Key	WCUXLLCKKVVCTQ-UHFFFAOYSA-M
Molecular Formula	ClK

695

Folin and Ciocalteu's Phenol Reagent, 2.0N, MP Biomedicals

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696

Ricca Chemical Company Buffer, Reference Standard, pH 2.00 ± 0.01 at 25°C, Ricca Chemical

Pricing & Availability

697

Ricca Chemical Company VeriSpec™ Mixed Anion Standard 7, Ricca Chemical

2 ppm F^-, 10 ppm PO₄³^-, NO₃^-, Br^-, SO₄²^-, 5ppm Cl^-, NO₂^- /nManufactured and Tested in a

Pricing & Availability

698

Thermo Scientific Chemicals TAE (10X), TRIS + acetate + EDTA

TAE (10X), TRIS + acetate + EDTA is a buffer composed of Tris, acetate, and EDTA components and is used in electrophoresis of nucleic acids in agarose and polyacrylamide gels.

Pricing & Availability
Specifications

MDL Number	MFCD00236357
Solubility Information	Fully miscible.
Packaging	Plastic bottle
Physical Form	Liquid
Chemical Name or Material	TAE (10X)
TSCA	Yes
Recommended Storage	Ambient temperatures

699

Starch Solution R, EP Reagent 1085103, Ricca Chemical

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700

Thermo Scientific Chemicals TRIS, 1.0M buffer soln., pH 8.8

CAS: 77-86-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 MDL Number: MFCD00004679 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N PubChem CID: 6503 ChEBI: CHEBI:9754 IUPAC Name: 2-amino-2-(hydroxymethyl)propane-1,3-diol SMILES: C(C(CO)(CO)N)O

Pricing & Availability
Specifications

PubChem CID	6503
CAS	77-86-1
Molecular Weight (g/mol)	121.136
ChEBI	CHEBI:9754
MDL Number	MFCD00004679
SMILES	C(C(CO)(CO)N)O
IUPAC Name	2-amino-2-(hydroxymethyl)propane-1,3-diol
InChI Key	LENZDBCJOHFCAS-UHFFFAOYSA-N
Molecular Formula	C4H11NO3

701

Buffer solution, pH 6.86 (+/-0.024 @ 25oC), No Color, Specpure, NIST Traceable

CAS: 1336-21-6 | H5NO | 35.05 g/mol

Pricing & Availability
Specifications

Molecular Weight (g/mol)	35.05
ChEBI	CHEBI:18219
Color	Colorless
Physical Form	Liquid
Chemical Name or Material	Buffer solution
SMILES	N.O
InChI Key	VHUUQVKOLVNVRT-UHFFFAOYSA-N
PubChem CID	14923
CAS	1336-21-6
MDL Number	MFCD00066650
TSCA	Yes
Recommended Storage	Ambient temperatures
Molecular Formula	H5NO
Odor	Odorless

702

Vinylmagnesium bromide, 0.7M solution in THF, AcroSeal™

CAS: 1826-67-1 Molecular Formula: C2H3BrMg Molecular Weight (g/mol): 131.26 MDL Number: MFCD00000042 InChI Key: XHHHAXOHMKAOSL-UHFFFAOYSA-M Synonym: vinylmagnesium bromide,bromo ethenyl magnesium,vinyl magnesium bromide,magnesium, bromoethenyl,vinylmagnesium bromide solution,vinylmagnesium bromide solution, 1.0 m in thf,bromovinylmagnesium,bromo vinyl magnesium,vinyl magnesiumbromide,grignard reagent PubChem CID: 74584 SMILES: Br[Mg]C=C

Pricing & Availability
Specifications

PubChem CID	74584
CAS	1826-67-1
Molecular Weight (g/mol)	131.26
MDL Number	MFCD00000042
SMILES	Br[Mg]C=C
Synonym	vinylmagnesium bromide,bromo ethenyl magnesium,vinyl magnesium bromide,magnesium, bromoethenyl,vinylmagnesium bromide solution,vinylmagnesium bromide solution, 1.0 m in thf,bromovinylmagnesium,bromo vinyl magnesium,vinyl magnesiumbromide,grignard reagent
InChI Key	XHHHAXOHMKAOSL-UHFFFAOYSA-M
Molecular Formula	C2H3BrMg

703

Ricca Chemical Company t-Butyl Alcohol, 30% (v/v), Ricca Chemical

CAS: 75-65-0 Molecular Formula: C4H10O Molecular Weight (g/mol): 74.123 InChI Key: DKGAVHZHDRPRBM-UHFFFAOYSA-N Synonym: tert-butanol,tert-butyl alcohol,2-methyl-2-propanol,t-butanol,t-butyl hydroxide,1,1-dimethylethanol,trimethylcarbinol,trimethyl methanol,2-propanol, 2-methyl,t-butyl alcohol PubChem CID: 6386 ChEBI: CHEBI:45895 IUPAC Name: 2-methylpropan-2-ol SMILES: CC(C)(C)O

Pricing & Availability
Specifications

PubChem CID	6386
CAS	75-65-0
Molecular Weight (g/mol)	74.123
ChEBI	CHEBI:45895
SMILES	CC(C)(C)O
Synonym	tert-butanol,tert-butyl alcohol,2-methyl-2-propanol,t-butanol,t-butyl hydroxide,1,1-dimethylethanol,trimethylcarbinol,trimethyl methanol,2-propanol, 2-methyl,t-butyl alcohol
IUPAC Name	2-methylpropan-2-ol
InChI Key	DKGAVHZHDRPRBM-UHFFFAOYSA-N
Molecular Formula	C4H10O

704

Magnesium, AAS standard solution, Specpure™ Mg 1000μg/mL

CAS: 7439-95-4 Molecular Formula: Mg Molecular Weight (g/mol): 24.30 MDL Number: MFCD00085308 InChI Key: JLVVSXFLKOJNIY-UHFFFAOYSA-N PubChem CID: 5462224 ChEBI: CHEBI:25107 IUPAC Name: magnesium SMILES: [Mg]

Pricing & Availability
Specifications

PubChem CID	5462224
CAS	7439-95-4
Molecular Weight (g/mol)	24.30
ChEBI	CHEBI:25107
MDL Number	MFCD00085308
SMILES	[Mg]
IUPAC Name	magnesium
InChI Key	JLVVSXFLKOJNIY-UHFFFAOYSA-N
Molecular Formula	Mg

705

Multi Ion cation IC standard solution, Specpure™ (Dionex) in 5% HNO{3}

Pricing & Availability

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Buffers and Standards

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Potassium Chloride Saturated, Electrode Filling Solution, Certified, ≥ 4.0M, LabChem™ GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

Potassium Chloride Saturated, Electrode Filling Solution, Certified, ≥ 4.0M, LabChem™