Picloram

Description

Colorless crystals used as an Herbicide. Picloram is a translocated herbicide that is applied to the soil to kill the plant and its roots. It is chemically stable and remains in the environment for years before decomposing.

Synonyms and Related Terms

4-Amino-3,5,6-trichloropicolinic acid; Tordon [Dow Chemical]; Amdon; ATCLP; Borolin; K-PIN; Chloramp; Grazon; Uniran [Ciba Geigy]

Risks

• Ingestion, inhalation and skin absorption cause severe irritation and burning.
• LD50 = 8200 mg/kg
• Combustible.
• Environmental hazard.
• Toxic to aquatic systems.
• ThermoFisher: SDS

Physical and Chemical Properties

Soluble in acetone. Slightly soluble in water, dichloromethane.

Composition	C6H3Cl3N2O2
CAS	1918-02-1
Melting Point	218-219 C (dec)
Molecular Weight	mol. wt. = 241.5

Resources and Citations

• The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7280

• G.Caneva, M.P.Nugari, O.Salvadori, Biology in the Conservation of Works of Art, ICCROM, Rome, 1991

• Encyclopedia Britannica, http://www.britannica.com Comment: "herbicide" [Accessed April 9, 2002].