Formula: As in 3% HNO₃ Formula Weight: N/A Description: Composition: H₃AsO₄ in HNO₃ 2-3%

Formula: Cu(NO₃)₂ in HNO₃ 2-3% Formula Weight: N/A Synonym(s): Copper nitrate in nitric acid Suprapur® 2-3% Description: Composition:

Formula: Ba(NO₃)₂ in HNO₃ 2-3% Formula Weight: N/A Synonym(s): Description: Composition: Barium nitrate in nitric acid Suprapur®; 2-3%

Formula: Pb in 3% HNO₃ Formula Weight: 207.20

1 mL = 1 mg Si (1,000 ppm Si) Si in 3% HNO3 / trace HF