Bismuth standard solution — specification & preparation

Product summary (typical)

• Name: Bismuth(III) standard solution

• Intended use: Calibration standard for AAS / ICP-OES / ICP-MS and wet-chemistry QC.

• Matrix: Acidified aqueous solution (recommended: 1–5% v/v nitric acid) to keep Bi in solution and prevent hydrolysis.

• Typical concentration options: 10 mg·L⁻¹, 100 mg·L⁻¹, 1000 mg·L⁻¹ (custom concentrations prepared by dilution).

• Appearance: Clear, colorless to faintly yellow solution (depending on concentration/acid).

• Typical assay (elemental Bi in source material): high-purity Bi reagent or Bi nitrate salt from which standard is prepared. Typical reagent-grade purity ≥99.9% (varies by supplier).

• Storage: Amber glass or high-density polyethylene bottles, tightly capped, room temperature (15–25 °C) recommended; avoid light and extremes of temperature.

• Shelf life (typical): 6–12 months if stored acidified, capped, and free of contamination; verify by periodic standard checks.

• Hazards: Corrosive (acidic matrix), toxic if ingested or inhaled as dust (if handling salts), avoid skin/eye contact. Use PPE, work in fume hood. Dispose as hazardous waste per local regulations.