Location: Group 14, Period 5
Storage & Handling: Keep tightly sealed when not in use. Store and use at 20 ± 4°C. Do not pipet from container. Do not return portions removed for pipetting to container.
Chemical Compatibility: Soluble in HCl and dilute HF / HNO3. Avoid neutral to basic media. Unstable at ppm levels with metals that would pull F- away (i.e. - do not mix with Alkaline or Rare Earths or high levels of transition elements unless they are fluorinated). Stable with most inorganic anions, provided it is in the chemical form shown above.
Stability: 2-100 ppb levels stable (alone or mixed with all other metals that are at comparable levels) as the Sn(OH)xFy2- for 1 year in 1% HNO3 / LDPE container. 1-10,000 ppm single element solutions as the Sn(OH)xFy2- are chemically stable for years in 2-5% HNO3 / trace HF in a LDPE container.
Sn Containing Samples (Preparation & Solution): Metal (soluble in HF / HNO3 or HCl); Oxides - SnO (soluble in HCl), SnO2 - very resistant to all acids including HF (fusion with equal parts of Na2CO3 and S is soluble in water or dilute acids as the thiostannate); Alloys (treat first 0.1 g with 10 mL conc. H2SO4 to boiling until the alloy disintegrates and nearly all of the Sulphuric acid is expelled. Then add 100 mL O2 free water and 50 mL of conc HCl or transfer to a plastic container and add 1 mL HF, in either case, warming gently to bring about solution); Organic Matrices (volatility and precipitation of the insoluble stannic oxide are problems -- because these preparations are prone to error, we recommend you contact our technical staff at email@example.com or tel:01702 555577 and we'll provide you with the necessary data for your specific sample type).
|Atomic Spectroscopic Information:|
1000ug/mL TIN 30mL
tr Nitric Acid /tr Hydrofluoric Acid
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