Sodium cacodylate

  • Sodium dimethylarsinate
  • [(Dimethylarsino)oxy]sodium
  • Arsecodile
  • Silvisar
Formula
C2H6AsNaO2
Structure
Description
A white crystalline or granular solid with a slight odor.
Uses
Herbicide, Defoliant, Rodenticide

Registry Numbers and Inventories.
CAS
124-65-2
EC (EINECS/ELINCS)
204-708-2
RTECS
CH7700000
RTECS class
Agricultural Chemical and Pesticide; Drug; Organometallic; Mutagen; Reproductive Effector
UN (DOT)
1688
Merck
12,8738
Beilstein/Gmelin
3702348
Beilstein Reference
0-04-00-00610
RCRA
D004
EPA OPP
12502
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
C2H6AsO2*Na
Formula mass
159.98
Melting point, °C
60
Boiling point, °C
200
Odor Threshold Odor threshold Odorless
Density
> 1 g/cm3 (20 C) (solid) (est)
Solubility in water
Soluble

Hazards and Protection.
Storage
Do not store near fertilizers, seeds, insecticide, or fungicides.
Handling
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.
Protection
Rubber gloves, goggles or face shield for eye protection, rubber apron.
Respirators
Not available.
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers.
Stability
No data.
Incompatibilities
When water soln of arsenicals are in contact with active metals such as arsenic, iron, aluminum, zinc, highly toxic fumes of arsenic are released.
Decomposition
When heated to decomposition it emits toxic fumes of arsenic.

Fire.
Fire fighting
(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.
Fire potential
Not flammable
Hazards
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).
Combustion products
Arsenic-containing fumes are emitted.
Health
3
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure limit(s)
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)
Exposure effects
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.
   Ingestion
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.
   Inhalation
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.
   Skin
Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact.
   Eyes
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.

First aid
 
   Ingestion
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.
   Inhalation
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.
   Skin
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.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
1688
Response guide
Hazard class
6.1
Packing Group
II
 
USCG CHRIS Code
SCD
 
Std. Transport #
4923985