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Chemical Sampling Information (CSI)
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General Description

Synonyms: Phosphorodichloridic acid, ethyl ester

OSHA IMIS Code Number: E235

Chemical Abstracts Service (CAS) Registry Number: 1498-51-7

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TD4390000

Chemical Description and Physical Properties:

molecular weight: 162.94
specific gravity: 1.373
molecular formula: C2H5Cl2O2P
boiling point: 60°C
flash point: 230°F (109°C)

Health Factors

Potential Symptoms: Corrosive, causes burns; material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and skin. Symptoms of exposure may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting. Prolonged exposure may result in chemical pneumonitis and pulmonary edema.

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: OVS-2 Tube
    maximum volume: 120 Liters
    maximum flow rate: 1 L/min
    method reference: 2 (OSHA In-House File)
    method classification: Not Validated

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