Donovan's solution

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Donovan's Solution
IUPAC name
iodomercury; triiodoarsane
Other names
liquor hydriodatis arsenici et hydrargyri
ChemSpider 29291736 YesY
Jmol-3D images Image
PubChem 24679
RTECS number CG3200000
UN number 1557
Molar mass 783.12948
Appearance Clear, colourless, or pale yellow. Darkens with age.
Boiling point 403 °C (757 °F; 676 K) at 760 mmHg
Main hazards Toxic
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Donovan's solution is an inorganic compound prepared from arsenic triiodide and mercuric iodine.[1]


1g each of AsI3 and HgI2 with 0.9 sodium bicarbonate in water to make 100 ml.

Cooley's cyclopædia of practical receipts and ... information on the arts, manufactures, and trades gives a more complex method.[2]


Has been used in veterinary medicine to treat chronic diseases of the skin.[3] Also as a folk remedy.[4] Used during the 19th century to treat Lepra vulgaris[5] and psoriasis[6][7] in humans, taken internally.


  1. ^ Budavari, Susan (1989). "3413. Donovan's Solution". The Merck Index (11th ed.). Merck & Co., Inc. p. 537. ISBN 091191028X. LCCN 89060001. 
  2. ^ Arnold James Cooley (1880). "Solution". In Richard Vine Tuson. A cyclopædia of practical receipts and ... information on the arts, manufactures, and trades II (6th ed.). p. 1525. 
  3. ^ Oxtoby, David W.; H.P. Gillis; Allan Campion (2012). Principles of modern chemistry (7th ed.). Belmont, Calif.: Brooks/Cole Cengage Learning. p. 513. ISBN 0840049315. 
  4. ^ "Donovan's solution". Chemical Dictionary Online. Retrieved 29 November 2013. 
  5. ^ Sir Erasmus Wilson (1847). "Treatment of Lepra". On Diseases of the Skin (2nd ed.). John Churchill. p. 271. 
  6. ^ Henry G. Piffard (1881). "Psoriasis Treatment. Part 6". A Treatise On The Materia Medica And Therapeutics Of The Skin. Sampson, Low, Marston, Searle & Rivington. p. 254. 
  7. ^ "GOOD RESULTS OF DONOVAN'S SOLUTION IN PSORIASIS.". The Lancet 70 (1770): 116. August 1857. doi:10.1016/S0140-6736(02)38789-0. 

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