1000ug/mL THORIUM 30mL CL01.1501.0100 If silica is present

If silica is present

Nitrite as N

V2O5 - use conc

hot Sulphuric acid adding hydrogen peroxide carefully dropwise until clear)

ICPO41-500ML

1000ug/mL THORIUM 30mL CL01.1501.0100 If silica is presentElement properties Thorium Location: Period 7 (actinoid) Atomic Weight: 232. 0381 Coordination Number: 8 Chemical Form in Solution: Th(OH)3+ and Th(OH)22+ Storage & Handling: Keep tightly sealed when not in use. Store and use at 20 4C. Do not pipet from container. Do not return portions removed for pipetting to container. Chemical Compatibility: Soluble in HCl and HNO3. Avoid H3PO4, H2SO4, and HF, although solubilities may not be a problem depending