Kjeldahl Buffers and Reagents

Buffers and reagents intended for use with the Kjeldahl method; the Kjeldahl method is an analytical chemistry procedure used for the quantitative determination of nitrogen contained in organic substances, ammonia and ammonium.

1 – 15 of 69 results

Hydrochloric Acid, 0.1142 N, for Kjeldahl Analysis of Proteins, Ricca Chemical

CAS: 7647-01-0 Molecular Formula: ClH Molecular Weight (g/mol): 36.46 MDL Number: MFCD00011324 MFCD00792839 InChI Key: VEXZGXHMUGYJMC-UHFFFAOYSA-N 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
IUPAC Name	hydrogen chloride
InChI Key	VEXZGXHMUGYJMC-UHFFFAOYSA-N
Molecular Formula	ClH

Digestion Reagent, with Copper Catalyst, Ricca Chemical

For Analysis of Nitrogen (Kjeldahl)

Pricing & Availability
Specifications

Name Note	With Copper Catalyst
CAS	7758-99-8
Color	Blue
Physical Form	Liquid
Packaging	Natural Poly Bottle
CAS Min %	0.51
Chemical Name or Material	Digestion Reagent
CAS Max %	0.53

BUCHI Boric Acid with Sher Indicator, pH 4.65

Boric Acid with Sher Indicator, pH adjusted to 4.65 ± 0.15 for pH or colorimetric titration.

Pricing & Availability
Specifications

CAS	76-60-8
Molecular Weight (g/mol)	61.83
Packaging	Plastic Bottle
Chemical Name or Material	Boric Acid with Sher Indicator
Quantity	5 L
Synonym	Orthoboric Acid
Molecular Formula	BH3O3

Sulfuric Acid, 0.1142 N, Ricca Chemical

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

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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

FisherTab™ TT-35 Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 3.5g K₂SO₄ + 0.1g CuSO₄ + 0.1g TiO₂

Pricing & Availability
Specifications

CAS	13463-67-7
MDL Number	MFCD00010981
Chemical Name or Material	FisherTab™ TT-35 Kjeldahl Tablets
Assay Percent Range	94%

FisherTab™ CT-37 Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 3.5g K₂SO₄ + 0.4g CuSO₄

Promotions are available

Pricing & Availability
Specifications

CAS	7778-80-5
MDL Number	MFCD00010981
Chemical Name or Material	FisherTab™ CT-37 Kjeldahl Tablets
Assay Percent Range	90%

Sodium Hydroxide, For Kjeldahl Nitrogen, Certified, 40.0% (w/w) ±0.4% (w/w), LabChem™

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M Synonym: Caustic Soda PubChem CID: 14798 ChEBI: CHEBI:32145 IUPAC Name: sodium;hydroxide SMILES: [OH-].[Na+]

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Specifications

PubChem CID	14798
CAS	1310-73-2
Molecular Weight (g/mol)	39.997
ChEBI	CHEBI:32145
SMILES	[OH-].[Na+]
Synonym	Caustic Soda
IUPAC Name	sodium;hydroxide
InChI Key	HEMHJVSKTPXQMS-UHFFFAOYSA-M
Molecular Formula	HNaO

FisherTab CT-AUTO Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 1.5g K₂SO₄ + 0.15g CuSO₄

Pricing & Availability
Specifications

CAS	7778-80-5
MDL Number	MFCD00010981
Chemical Name or Material	FisherTab™ CT-AUTO Kjeldahl Tablets
Assay Percent Range	93%

FisherTab™ ST-35 Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 3.5g K₂SO₄ + 0.35g Se

Pricing & Availability
Specifications

CAS	7782-49-2
MDL Number	MFCD03456801
Chemical Name or Material	FisherTab™ ST-35 Kjeldahl Tablets
Assay Percent Range	99%

FisherTab™ MT-37 Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 3.5g K₂SO₄ + 0.175g HgO

Pricing & Availability
Specifications

CAS	21908-53-2
MDL Number	MFCD03456795
Chemical Name or Material	FisherTab™ MT-37 Kjeldahl Tablets
Assay Percent Range	95%

Kjel-Sorb™ Solution (Certified), Fisher Chemical™

CAS: 10043-35-3 Molecular Formula: BH3O3 Molecular Weight (g/mol): 61.83 MDL Number: MFCD00011337 InChI Key: KGBXLFKZBHKPEV-UHFFFAOYSA-N PubChem CID: 7628 ChEBI: CHEBI:33118 IUPAC Name: boric acid SMILES: OB(O)O

Promotions are available

Pricing & Availability
Specifications

PubChem CID	7628
CAS	10043-35-3
Molecular Weight (g/mol)	61.83
ChEBI	CHEBI:33118
MDL Number	MFCD00011337
SMILES	OB(O)O
IUPAC Name	boric acid
InChI Key	KGBXLFKZBHKPEV-UHFFFAOYSA-N
Molecular Formula	BH3O3

FisherTab™ TT-50 Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 5g K₂SO₄ + 0.1g CuSO₄ + 0.1g TiO₂

Pricing & Availability
Specifications

CAS	13463-67-7
MDL Number	MFCD00010981
Chemical Name or Material	FisherTab™ TT-50 Kjeldahl Tablets
Assay Percent Range	94%

FisherTab™ TT-43 Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 4.18g K₂SO₄ + 0.0025g CuSO₄ + 0.15g TiO₂

Pricing & Availability
Specifications

CAS	13463-67-7
MDL Number	MFCD00010981
Chemical Name or Material	FisherTab™ TT-43 Kjeldahl Tablets
Assay Percent Range	96%

BUCHI Kjeldahl Tablets

Digestion aids for nitrogen determination.

Pricing & Availability
Specifications

Percent Purity	Mixture
Packaging	Plastic Container
Quantity	1000 Pk.

Boric Acid, 2% (w/v) with Mixed Indicator, Ricca Chemical

CAS: 10043-35-3 Molecular Formula: BH3O3 Molecular Weight (g/mol): 61.83 MDL Number: MFCD00011337 InChI Key: KGBXLFKZBHKPEV-UHFFFAOYSA-N Synonym: orthoboric acid,boracic acid,borofax,boron hydroxide,boron trihydroxide,three elephant,basilit b,Tris-borate-EDTA,h3bo3,flea prufe PubChem CID: 7628 ChEBI: CHEBI:33118 IUPAC Name: boric acid SMILES: OB(O)O

Promotions are available

Pricing & Availability
Specifications

PubChem CID	7628
CAS	10043-35-3
Molecular Weight (g/mol)	61.83
ChEBI	CHEBI:33118
MDL Number	MFCD00011337
SMILES	OB(O)O
Synonym	orthoboric acid,boracic acid,borofax,boron hydroxide,boron trihydroxide,three elephant,basilit b,Tris-borate-EDTA,h3bo3,flea prufe
IUPAC Name	boric acid
InChI Key	KGBXLFKZBHKPEV-UHFFFAOYSA-N
Molecular Formula	BH3O3

Kjeldahl Buffers and Reagents

Kjeldahl Buffers and Reagents

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Hydrochloric Acid, 0.1142 N, for Kjeldahl Analysis of Proteins, Ricca Chemical Supplier Diversity PartnerSmall and/or diverse supplier based on Federal laws and SBA requirements.Learn More

Digestion Reagent, with Copper Catalyst, Ricca Chemical Supplier Diversity PartnerSmall and/or diverse supplier based on Federal laws and SBA requirements.Learn More

BUCHI Boric Acid with Sher Indicator, pH 4.65 Supplier Diversity PartnerSmall and/or diverse supplier based on Federal laws and SBA requirements.Learn More

Sulfuric Acid, 0.1142 N, Ricca Chemical Supplier Diversity PartnerSmall and/or diverse supplier based on Federal laws and SBA requirements.Learn More

BUCHI Kjeldahl Tablets Supplier Diversity PartnerSmall and/or diverse supplier based on Federal laws and SBA requirements.Learn More

Boric Acid, 2% (w/v) with Mixed Indicator, Ricca Chemical Supplier Diversity PartnerSmall and/or diverse supplier based on Federal laws and SBA requirements.Learn More

Hydrochloric Acid, 0.1142 N, for Kjeldahl Analysis of Proteins, Ricca Chemical

Digestion Reagent, with Copper Catalyst, Ricca Chemical

BUCHI Boric Acid with Sher Indicator, pH 4.65

Sulfuric Acid, 0.1142 N, Ricca Chemical

BUCHI Kjeldahl Tablets

Boric Acid, 2% (w/v) with Mixed Indicator, Ricca Chemical