- Sodium dimethylarsinate
A white crystalline or granular solid with a slight odor.
Herbicide, Defoliant, Rodenticide
Registry Numbers and Inventories.
Agricultural Chemical and Pesticide; Drug; Organometallic; Mutagen; Reproductive Effector
Melting point, °C
Boiling point, °C
Odor Threshold Odor threshold Odorless
> 1 g/cm3 (20 C) (solid) (est)
Solubility in water
Hazards and Protection.
Do not store near fertilizers, seeds, insecticide, or fungicides.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Rubber gloves, goggles or face shield for eye protection, rubber apron.
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers.
When water soln of arsenicals are in contact with active metals such as arsenic, iron, aluminum, zinc, highly toxic fumes of arsenic are released.
When heated to decomposition it emits toxic fumes of arsenic.
(Non-Specific -- Pesticide, Solid, n.o.s.) Keep unnecessary people away; isolate hazard area. Stay upwind; keep out of low areas. Wear self-contained breathing apparatus and full protective clothing. Move container from fire area, if you can do so without risk.(Non-Specific -- Pesticide, Solid, n.o.s.) Extinguish with dry chemical, carbon dioxide, water spray, fog, or foam.
Poisoning potential is high when heated to decomposition, or on contact with acids or acid fumes, because it emits highly toxic fumes of arsenic. Avoid water solution in contact with active metals (iron, aluminum, zinc).
Arsenic-containing fumes are emitted.
OSHA PEL: 1910.1018 TWA 0.010 mg/m3 NIOSH REL: Ca C 0.002 mg/m3 15-minute See Appendix A NIOSH IDLH: Potential occupational carcinogen 5 mg/m3 (as As)
Patients may rapidly become hypotensive. Rapid heart rate may develop secondary to pain, hypovolemia, cardiac effects of arsenic, or anxiety. Toxic delirium and encephalopathy are possible complications. Peripheral neuropathy is common. Prenatal mortality and gross malformations have been observed in the offspring of exposed experimental animals. Arsenic is likely fetotoxic in humans, however at permissible occupational exposure limits arsenic is NOT likely to be a significant risk to human reproduction. Fertility does not seem to be effected in either males or females. <br>Arsenic is excreted in breast milk. <br>Systemic toxicity was present before any effects were noted on the testes in rats.
Early symptoms within hours following arsenic ingestion include abdominal pain, vomiting, profuse bloody or watery (rice-water-like) diarrhea, pain in the extremities and muscles, weakness, and flushing of the skin.
Acute respiratory failure was seen in a patient with severe arsenic poisoning. Pulmonary edema may occur and be life-threatening. Adult respiratory distress syndrome (ards) has been reported.
Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact.
Headache, inflammation of the eye, photophobia, dimness of vision, diplopia, and tearing may occur. This material is irritating and corrosive to the eyes and mucous membranes. A garlic-like odor may be detected on the breath.
Do not induce emesis. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
Immediately flush with running water for at least 20 minutes.
USCG CHRIS Code
Std. Transport #