Reinecke salt

Synonyms

Ammonium diamminetetrakis(thiocyanato-N)chromate(1-); Chromate(1-), diamminetetrakis(thiocyanato-N)-, ammonium; Chromate(1-), diamminetetrakis(thiocyanato-N)-, ammonium, (OC-6-11)-; Chromate(1-), diamminetetrakis(thiocyanato-kappaN)-, ammonium (1:1), (OC-6-11)-; Chromate(1-), diamminetetrakis(thiocyanato-kappaN)-, ammonium, (OC-6-11)-; [ChemIDplus] Ammonium reineckate; Ammonium tetrathiocyanodiammonochromate; [Merck Index] Ammonium diamminetetrathiocyanatochromate(III); [Alfa Aesar MSDS]

Category

Chromium Compounds, Inorganic

Description

Exists as the monohydrate: Dark red or red solid; Sparingly soluble in cold water; Soluble in hot water; [Merck Index] Dark red odorless powder; Partially soluble in water; [Alfa Aesar MSDS]

Sources/Uses

Used as a precipitant (primary and secondary amines, proline, hydroxyproline, and certain amino acids) and reagent (mercury); [Merck Index]

Comments

"The trivalent form of Cr is 500-1000 times less toxic than the hexavalent form. Organic Cr-containing complexes of toxicological importance have not been reported." [Nordberg, p. 718] May cause irritation; Harmful by ingestion, inhalation, and skin absorption; [Alfa Aesar MSDS] See Cr(III) compounds in "Chromium."

Biomedical References

0.003 mg/m3, as Cr(III), inhalable particulate matter

0.5 mg/m3

Explanatory Notes

Soluble Cr(III) compounds are assigned RSEN and DSEN; "Trivalent chromium compounds--with the exception of chromium(III) acetate, chromium(III) chloride hexahydrate, and chromium(III) nitrate--are insoluble or poorly soluble in water . . ." [ACGIH]

Not classifiable

Not Classifiable

Other Information

No other related information on this agent was found.