Ecological Assessment of Storm Impacts

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Data Collection

DSMA

CAS Number: 144-21-8

Basic Information

The chemical structure of DSMA Synonym(s): Disodium acid methane arsenate; Ansar 184; Ansar 8100; Arrhenal; Arsinyl; Diarsen; Dinate; Disodium methanearsonate; Disodium methylarsonate
Formula: CH3AsNa2O3
 Molecular Weight: 183.934
 Melting Point (°C): 132
 Contaminant Type: DSMA is an herbicide.

Solubility (in water)

  • Solubility: 34.1 g/100ml g
    Temperature (°C): 25

Toxicity Effects

  • Organism Type: Mammals g
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: 1935 mg/kg
     Test: LD50
  • Organism Type: Mammals c
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: 3.6 g/kg
     Test: LD50
     Formulation: DMSA 4

Octanol-Water Partition Coefficients

  • Log Kow: < 1 g

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Potential applications of this contaminant in the St. Johns Water River Management District

Work Cited

c C&P Press. 2002. EPR Professional Annual CD. Crop Protection Reference. Chemical and Pharmacuetical Press, Inc., New York, NY.
g Meister, R. T., and C. Sine (Ed). 2003. Crop Protection Handbook, volume 89. Meister Publishing Company, Willoughby, OH.