Paragon Scientific™ Total Acid Number Standard, ASTM D664 (nominal value: 2.93 mg KOH/g), 3 x 50g

Specifically manufactured for the verification of analytical instruments used to determine acid number by potentiometric titration. Each standard is certified in strict accordance with international test method protocols, ASTM D664 / IP 177.

Iron solution for ICP/MS 10mg/L HNO3 matrix, Fisher chemical™

CAS: 7697-37-2 Molecular Formula: HNO3 Molecular Weight (g/mol): 63.012 InChI Key: GRYLNZFGIOXLOG-UHFFFAOYSA-N PubChem CID: 944 ChEBI: CHEBI:48107 IUPAC Name: nitric acid SMILES: [N+](=O)(O)[O-]

Melting Point Benzophenone 47 to 49°C Standard, Reagecon

Ultrapure substance, specially prepared to calibrate, control, verify or qualify melting point (MP) devices.

Cadmium, plasma standard solution, Cd 1000μg/mL, Alfa Aesar™, Specpure™

CAS: 7440-43-9 Molecular Formula: Cd Molecular Weight (g/mol): 112.414 MDL Number: MFCD00010914 InChI Key: BDOSMKKIYDKNTQ-UHFFFAOYSA-N PubChem CID: 23973 ChEBI: CHEBI:22977 IUPAC Name: cadmium SMILES: [Cd]

Iodine, 0.01N Standardized Solution, Alfa Aesar™

CAS: 7553-56-2 Molecular Formula: I2 Molecular Weight (g/mol): 253.809 MDL Number: MFCD00011355 InChI Key: PNDPGZBMCMUPRI-UHFFFAOYSA-N PubChem CID: 807 ChEBI: CHEBI:17606 IUPAC Name: molecular iodine SMILES: II

Six elements precious metals - Au, Ir, Pd, Pt, Rh, Ru for ICP 100mg/L HNO3 matrix, Fisher chemical™

All Our Certified Reference Materials and Reagents are produced under an ISO 9001 Quality Management System, also Accredited according to ISO/IEC 17025 and Accredited according to ISO Guide 34.

Silver standard solution, for AAS, 1mg/mL Ag in 0.5N HNO3, ACROS Organics™

CAS: 7761-88-8 Molecular Formula: AgNO3 Molecular Weight (g/mol): 169.872 MDL Number: MFCD00003397 InChI Key: SQGYOTSLMSWVJD-UHFFFAOYSA-N PubChem CID: 24470 ChEBI: CHEBI:32130 IUPAC Name: silver;nitrate SMILES: [N+](=O)([O-])[O-].[Ag+]