Kjeldahl Reagents

FisherTab™ CT-37 Kjeldahl Tablets, Fisher Chemical Available on GSA/VA Contract for Federal Government customers only.

Composition per tablet: 3.5g K2SO4 + 0.4g CuSO4

FisherTab™ TT-35 Kjeldahl Tablets, Fisher Chemical Available on GSA/VA Contract for Federal Government customers only.

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

Kjel-Sorb™ Solution (Certified), Fisher Chemical Available on GSA/VA Contract for Federal Government customers only.

CAS: 10043-35-3 Molecular Formula: BH3O3 Molecular Weight (g/mol): 61.831 MDL Number: MFCD00011337 InChI Key: KGBXLFKZBHKPEV-UHFFFAOYSA-N PubChem CID: 7628 ChEBI: CHEBI:33118

FisherTab CT-AUTO Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 1.5g K2SO4 + 0.15g CuSO4

FisherTab™ ST-35 Kjeldahl Tablets, Fisher Chemical Available on GSA/VA Contract for Federal Government customers only.

Composition per tablet: 3.5g K2SO4 + 0.35g Se

FisherTab™ CT-50 Kjeldahl Tablets, Fisher Chemical Available on GSA/VA Contract for Federal Government customers only.

Composition per tablet: 5g K2SO4 + 0.15g CuSO4

FisherTab™ MT-37 Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 3.5g K2SO4 + 0.175g HgO

FisherTab™ ST-AUTO Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 1.5g K2SO4 + 0.015g Se

Digestion Reagent, with Copper Catalyst, Ricca Chemical

For Analysis of Nitrogen (Kjeldahl)

Sodium Hydroxide-Thiosulfate, 50%-2.5% (w/v) Aqueous Solution, for Kjeldahl Nitrogen Analysis using Copper Catalyst, Ricca Chemical

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M PubChem CID: 14798 ChEBI: CHEBI:32145

Kjeltabs Cu-3.5, Foss™

CAS: 7758-99-8 Molecular Formula: CuH10O9S Molecular Weight (g/mol): 249.677 InChI Key: JZCCFEFSEZPSOG-UHFFFAOYSA-L PubChem CID: 24463 ChEBI: CHEBI:31440

Boric Acid, 2% (w/v) Aqueous Solution with Mixed Indicator, for Ammonia and Kjeldahl Nitrogen Analysis, Ricca Chemical

Chemical Name or Material: Boric Acid CAS: 7732-18-5 CAS Min %: 95.0 CAS Max %: 98.0 CAS: 10043-35-3 CAS Min %: 1.89 CAS Max %: 1.97 CAS: 64-17-5 CAS Min %: 1.51 CAS Max %: 1.58 CAS: 7220-79-3 CAS Min %: 0.0016 CAS Max %: 0.0016 CAS: 845-10-3 CAS Min %: 7.0E-4 CAS Max %: 7.0E-4 CAS: 7732-18-5

Kjeltabs Cu-1.5, Foss™

CAS: 7758-99-8 Molecular Formula: CuH10O9S Molecular Weight (g/mol): 249.677 InChI Key: JZCCFEFSEZPSOG-UHFFFAOYSA-L PubChem CID: 24463 ChEBI: CHEBI:31440

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

CAS: 7647-01-0 Molecular Formula: ClH Molecular Weight (g/mol): 36.458 InChI Key: VEXZGXHMUGYJMC-UHFFFAOYSA-N PubChem CID: 313 ChEBI: CHEBI:17883

Sodium Hydroxide, For Kjeldahl Nitrogen, Certified, 40.0% (w/w) ±0.4% (w/w), LabChem™ Available on GSA/VA Contract for Federal Government customers only.

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

FisherTab™ TT-57 Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 5.57g K2SO4 + 0.0033g CuSO4 + 0.2g TiO2

FisherTab™ TT-43 Kjeldahl Tablets, Fisher Chemical

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

FisherTab™ MT-AUTO Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 1.5g K2SO4 + 0.075g HgO

FisherTab™ TT-50 Kjeldahl Tablets, Fisher Chemical Available on GSA/VA Contract for Federal Government customers only.

Composition per tablet: 5g K2SO4 + 0.1g CuSO4 + 0.15g TiO2

FisherTab™ MT-50 Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 5g K2SO4 + 0.25g HgO

Sulfuric Acid, 0.1142 Normal, Suitable for Kjeldahl Nitrogen Analysis of Feed Grains, Ricca Chemical

CAS: 7664-93-9 Molecular Formula: H2O4S Molecular Weight (g/mol): 98.072 InChI Key: QAOWNCQODCNURD-UHFFFAOYSA-N PubChem CID: 1118 ChEBI: CHEBI:26836

Sodium Hydroxide-Sulfide, for Kjeldahl Nitrogen Analysis using Mercury Catalyst, Ricca Chemical

CAS: 1310-73-2 Molecular Formula: HNaO Molecular Weight (g/mol): 39.997 InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M PubChem CID: 14798 ChEBI: CHEBI:32145

Kjeltabs Auto, Foss™

CAS: 7782-49-2 Molecular Formula: Se Molecular Weight (g/mol): 78.971 InChI Key: BUGBHKTXTAQXES-UHFFFAOYSA-N PubChem CID: 6326970 ChEBI: CHEBI:27568

Kjeltabs S-3.5, Foss™

CAS: 7782-49-2 Molecular Formula: Se Molecular Weight (g/mol): 78.971 InChI Key: BUGBHKTXTAQXES-UHFFFAOYSA-N PubChem CID: 6326970 ChEBI: CHEBI:27568

Kjeltabs S-5, Foss™

CAS: 7782-49-2 Molecular Formula: Se Molecular Weight (g/mol): 78.971 InChI Key: BUGBHKTXTAQXES-UHFFFAOYSA-N PubChem CID: 6326970 ChEBI: CHEBI:27568

Kjeltabs CT (Copper and Titanium) - 5, Foss™

Composition per tablet: 5g K2SO4 + 0.15g CuSO4·5H2O + 0.15g TiO2

FisherTab™ SST-35 Kjeldahl Tablets, Fisher Chemical

Composition per tablet: 3.5g K2SO4 + 0.1g CuSeO3

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