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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Search Within Results

916 – 930 of 43,325 results

916

Hydrogen chloride, 1M in diethyl ether

CAS: 7647-01-0 Molecular Formula: ClH Molecular Weight (g/mol): 36.46 MDL Number: MFCD00011324 MFCD00792839 InChI Key: VEXZGXHMUGYJMC-UHFFFAOYSA-N Synonym: hydrochloric acid,hydrogen chloride,muriatic acid,chlorohydric acid,acide chlorhydrique,chlorwasserstoff,spirits of salt,hydrogen chloride hcl,anhydrous hydrochloric acid,chloorwaterstof PubChem CID: 313 ChEBI: CHEBI:17883 IUPAC Name: hydrogen chloride SMILES: Cl

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Specifications

PubChem CID	313
CAS	7647-01-0
Molecular Weight (g/mol)	36.46
ChEBI	CHEBI:17883
MDL Number	MFCD00011324 MFCD00792839
SMILES	Cl
Synonym	hydrochloric acid,hydrogen chloride,muriatic acid,chlorohydric acid,acide chlorhydrique,chlorwasserstoff,spirits of salt,hydrogen chloride hcl,anhydrous hydrochloric acid,chloorwaterstof
IUPAC Name	hydrogen chloride
InChI Key	VEXZGXHMUGYJMC-UHFFFAOYSA-N
Molecular Formula	ClH

917

Ricca Chemical Company Potassium Dichromate TS, 7.5% (w/v), Ricca Chemical

CAS: 7778-50-9 Molecular Formula: Cr2K2O7 Molecular Weight (g/mol): 294.182 InChI Key: KMUONIBRACKNSN-UHFFFAOYSA-N Synonym: potassium dichromate,potassium bichromate,kaliumdichromat,iopezite,dipotassium bichromate,dipotassium dichromate,potassium dichromate vi,dichromic acid dipotassium salt,dipotassium dichromium heptaoxide,bichromate of potash PubChem CID: 24502 ChEBI: CHEBI:53444 IUPAC Name: dipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium SMILES: [O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[K+].[K+]

Pricing & Availability
Specifications

PubChem CID	24502
CAS	7778-50-9
Molecular Weight (g/mol)	294.182
ChEBI	CHEBI:53444
SMILES	[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[K+].[K+]
Synonym	potassium dichromate,potassium bichromate,kaliumdichromat,iopezite,dipotassium bichromate,dipotassium dichromate,potassium dichromate vi,dichromic acid dipotassium salt,dipotassium dichromium heptaoxide,bichromate of potash
IUPAC Name	dipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium
InChI Key	KMUONIBRACKNSN-UHFFFAOYSA-N
Molecular Formula	Cr2K2O7

918

Ammonium hydroxide, 1.0N Standardized Solution

CAS: 1336-21-6 Molecular Formula: H5NO Molecular Weight (g/mol): 35.05 MDL Number: MFCD00066650 InChI Key: VHUUQVKOLVNVRT-UHFFFAOYSA-N PubChem CID: 14923 ChEBI: CHEBI:18219 SMILES: N.O

Pricing & Availability
Specifications

PubChem CID	14923
CAS	1336-21-6
Molecular Weight (g/mol)	35.05
ChEBI	CHEBI:18219
MDL Number	MFCD00066650
SMILES	N.O
InChI Key	VHUUQVKOLVNVRT-UHFFFAOYSA-N
Molecular Formula	H5NO

919

Tetrabutylammonium fluoride, 1M solution in THF, containing ca. 5% water

CAS: 429-41-4 | C16H36FN | 261.47 g/mol

Pricing & Availability
Specifications

Linear Formula	[CH₃(CH₂)₃]₄NF
Molecular Weight (g/mol)	261.47
ChEBI	CHEBI:51990
Chemical Name or Material	Tetrabutylammonium fluoride
SMILES	[F-].CCCC[N+](CCCC)(CCCC)CCCC
InChI Key	FPGGTKZVZWFYPV-UHFFFAOYSA-M
Density	0.8870g/mL
PubChem CID	2724141
Name Note	1M Solution in THF, Containing ca 5% Water
Fieser	04,477; 05,645; 07,353; 08,467; 09,444; 10,378; 11,499; 12,458; 14,293; 15,168; 17,363
CAS	7732-18-5
Health Hazard 3	GHS P Statement Keep away from heat/sparks/open flames/hot surfaces. - No smoking. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: rinse mouth. Do NOT induce vomiting. 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.
MDL Number	MFCD00011747
Health Hazard 2	GHS H Statement Causes severe skin burns and eye damage. Suspected of causing cancer. May cause respiratory irritation. Highly flammable liquid and vapor. May form explosive peroxides. May cause drowsiness or dizziness.
Flash Point	−17°C
Packaging	Glass bottle
Health Hazard 1	Danger
Synonym	tetrabutylammonium fluoride,tbaf,tetrabutylazanium fluoride,tetrabutyl ammonium fluoride,tetra-n-butylammonium fluoride,tetrabutylamine, fluoride,n,n,n-tributylbutan-1-aminium fluoride,1-butanaminium, n,n,n-tributyl-, fluoride,n,n,n-tributyl-1-butanaminium fluoride,1-butanaminium, n,n,n-tributyl-, fluoride 1:1
TSCA	TSCA
IUPAC Name	tetrabutylazanium;fluoride
Molecular Formula	C16H36FN
EINECS Number	207-057-2
Formula Weight	261.46
Specific Gravity	0.887

920

Thermo Scientific Chemicals Inositol hexaphosphoric acid, 50 wt% aqueous solution

CAS: 83-86-3 | C6H18O24P6 | 660.03 g/mol

Pricing & Availability
Specifications

Boiling Point	105.0°C
Molecular Weight (g/mol)	660.03
Chemical Name or Material	Inositol hexaphosphoric acid
SMILES	OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O
InChI Key	IMQLKJBTEOYOSI-GPIVLXJGSA-N
Density	1.3700g/mL
PubChem CID	890
Name Note	40-50 wt. % Aqueous Solution
CAS	7732-18-5
Health Hazard 3	GHS P Statement: Avoid breathing dust/fume/gas/mist/vapors/spray. IF ON SKIN: Wash with plenty of soap and water. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification.
MDL Number	MFCD00082309
Health Hazard 2	GHS H Statement: Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Packaging	Glass bottle
Solubility Information	Solubility in water: miscible.
Health Hazard 1	Warning
Refractive Index	1.391
Synonym	phytic acid,phytate,fytic acid,inositol hexaphosphate,alkalovert,myo-inositol hexaphosphate,alkovert,phytine,acide fytique,acidum fyticum
TSCA	TSCA
RTECS Number	NM7525000
IUPAC Name	(2,3,4,5,6-pentaphosphonooxycyclohexyl) dihydrogen phosphate
Molecular Formula	C6H18O24P6
EINECS Number	201-506-6
Formula Weight	660.03
Specific Gravity	1.37

921

Ricca Chemical Company EDTA Titrant, 0.0200 M (M/50), 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

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

922

Thermo Scientific Chemicals Bicine, 99+%, for biochemistry

CAS: 150-25-4 Molecular Formula: C6H12NNaO4 Molecular Weight (g/mol): 185.16 MDL Number: MFCD00004295 InChI Key: MFBDBXAVPLFMNJ-UHFFFAOYSA-M Synonym: N, N-Bis(2-hydroxyethyl)glycine,Diethylolglycine PubChem CID: 8761 ChEBI: CHEBI:40957 IUPAC Name: 2-[bis(2-hydroxyethyl)amino]acetic acid SMILES: [Na+].OCCN(CCO)CC([O-])=O

Pricing & Availability
Specifications

PubChem CID	8761
CAS	150-25-4
Molecular Weight (g/mol)	185.16
ChEBI	CHEBI:40957
MDL Number	MFCD00004295
SMILES	[Na+].OCCN(CCO)CC([O-])=O
Synonym	N, N-Bis(2-hydroxyethyl)glycine,Diethylolglycine
IUPAC Name	2-[bis(2-hydroxyethyl)amino]acetic acid
InChI Key	MFBDBXAVPLFMNJ-UHFFFAOYSA-M
Molecular Formula	C6H12NNaO4

923

Ricca Chemical Company Organic Carbon Standard, 5000 ppm C, Ricca Chemical

CAS: 7732-18-5 Molecular Formula: C8H5KO4 Molecular Weight (g/mol): Mixture InChI Key: IWZKICVEHNUQTL-UHFFFAOYSA-M PubChem CID: 23676735 IUPAC Name: potassium;2-carboxybenzoate SMILES: C1=CC=C(C(=C1)C(=O)O)C(=O)[O-].[K+]

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Specifications

PubChem CID	23676735
CAS	7732-18-5
Molecular Weight (g/mol)	Mixture
SMILES	C1=CC=C(C(=C1)C(=O)O)C(=O)[O-].[K+]
IUPAC Name	potassium;2-carboxybenzoate
InChI Key	IWZKICVEHNUQTL-UHFFFAOYSA-M
Molecular Formula	C8H5KO4

924

Iron, AAS standard solution, Specpure™ Fe 1000μg/mL

MDL Number: MFCD00010999

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Specifications

MDL Number	MFCD00010999

925

Buffer solution, pH 4.00, color-coded red Certified, traceable to NIST

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Specifications

Absorbance	Pass Test
Name Note	Color-coded Red
pH	3.99 to 4.01
Chemical Name or Material	Buffer solution, pH 4.00
Grade	Certified
Identification	Pass Test

926

Organic Carbon Standard, 25 ppm C, Ricca Chemical

CAS: 877-24-7 Molecular Formula: C8H5KO4 Molecular Weight (g/mol): 204.222 InChI Key: IWZKICVEHNUQTL-UHFFFAOYSA-M PubChem CID: 23676735 IUPAC Name: potassium;2-carboxybenzoate SMILES: C1=CC=C(C(=C1)C(=O)O)C(=O)[O-].[K+]

Pricing & Availability
Specifications

PubChem CID	23676735
CAS	877-24-7
Molecular Weight (g/mol)	204.222
SMILES	C1=CC=C(C(=C1)C(=O)O)C(=O)[O-].[K+]
IUPAC Name	potassium;2-carboxybenzoate
InChI Key	IWZKICVEHNUQTL-UHFFFAOYSA-M
Molecular Formula	C8H5KO4

927

Acid Digestion Reagent, For Organic Nitrogen, LabChem™

Pricing & Availability
Specifications

Linear Formula	CuSO₄·5H₂O
Color	Blue
Physical Form	Liquid
UN Number	UN2796
Chemical Name or Material	Acid Digestion Reagent
Identification	Passes Test
Name Note	For Organic Nitrogen
CAS	7758-99-8
Health Hazard 3	GHS P Statement Do not breathe dust, mist. Wear eye protection, face protection, protective clothing, protective gloves. Avoid release to the environment. Wash exposed skin thoroughly after handling. If swallowed: Rinse mouth. Do not induce vomiting. Immediately call a poison center/doctor. If on skin (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. Immediately call a poison center/doctor. Wash contaminated clothing before reuse. If inhaled: Remove person to fresh air and keep comfortable for breathing. Immediately call a poison center/doctor. 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/doctor. Store locked up. Dispose of contents/container to comply with local, state and federal regulations.
Decomposition Information	Sulfur compounds; Copper; Thermal decomposition generates: Corrosive vapors
Health Hazard 2	GHS H Statement Causes severe skin burns and eye damage. Harmful to aquatic life with long lasting effects.
Packaging	Poly Bottle
Solubility Information	Soluble in water
Health Hazard 1	Danger
Recommended Storage	Room Temperature
Formula Weight	249.68
CAS Max %	1.14

928

Ricca Chemical Company Zinc Acetate Solution, 100 g/L, Ricca Chemical

CAS: 5970-45-6 Molecular Formula: C4H10O6Zn Molecular Weight (g/mol): 219.498 InChI Key: BEAZKUGSCHFXIQ-UHFFFAOYSA-L Synonym: zinc acetate dihydrate,zinc diacetate dihydrate,zinc ii acetate dihydrate,unii-fm5526k07a,acetic acid zinc salt,zinc acetate usp,acetic acid, zinc salt, dihydrate,zinc acetate, dihydrate,galzin tn PubChem CID: 2724192 IUPAC Name: zinc;diacetate;dihydrate SMILES: CC(=O)[O-].CC(=O)[O-].O.O.[Zn+2]

Pricing & Availability
Specifications

PubChem CID	2724192
CAS	5970-45-6
Molecular Weight (g/mol)	219.498
SMILES	CC(=O)[O-].CC(=O)[O-].O.O.[Zn+2]
Synonym	zinc acetate dihydrate,zinc diacetate dihydrate,zinc ii acetate dihydrate,unii-fm5526k07a,acetic acid zinc salt,zinc acetate usp,acetic acid, zinc salt, dihydrate,zinc acetate, dihydrate,galzin tn
IUPAC Name	zinc;diacetate;dihydrate
InChI Key	BEAZKUGSCHFXIQ-UHFFFAOYSA-L
Molecular Formula	C4H10O6Zn

929

Nickel standard solution, for AAS, 1 mg/ml Ni in 2-5% HNO3

CAS: 7440-02-0 | Ni | 58.69 g/mol

Pricing & Availability
Specifications

Molecular Weight (g/mol)	58.69
ChEBI	CHEBI:28112
Solubility	Soluble in water
Color	Green
Physical Form	Crystals, Crystalline Powder and/or Chunks
CAS Min %	96.9
Chemical Name or Material	Nickel standard solution
Grade	AAS
SMILES	[Ni]
Concentration	990 to 1010 μg/mL Ni in 2 to 5% HNO3 (20°C)
InChI Key	PXHVJJICTQNCMI-UHFFFAOYSA-N
Density	1.0320g/mL
PubChem CID	935
Name Note	1 mg/ml Ni in 2% HNO3
CAS	7732-18-5
Health Hazard 3	GHS P Statement Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. 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. Keep only in original container.
MDL Number	MFCD00011137 MFCD06798735
Health Hazard 2	GHS H Statement May cause cancer by inhalation. May damage the unborn child. Causes severe skin burns and eye damage. May produce an allergic reaction. Harmful to aquatic life with long lasting effects. May be corrosive to metals.
Health Hazard 1	Danger
Packaging	Plastic bottle
IUPAC Name	nickel
Molecular Formula	Ni
Formula Weight	58.69
Specific Gravity	1.032
CAS Max %	97.1

930

MP Biomedicals™ 1X Phosphate Buffered Saline, Dulbecco's, without Magnesium and Calcium

Clear, colorless saline solution without magnesium and calcium

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