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23505-41-1

23505-41-1 structural image
Product Name: Pirimiphos ethyl
Formula: C13H24N3O3PS
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CHEMICAL AND PHYSICAL PROPERTIES

Physical Description Straw colored liquid. Used as a pesticide. (EPA, 1998)
Color/Form Straw-colored liquid
Odor Technical grade has a mercaptan-like odor
Melting Point 15-18 °C /technical grade/
Flash Point 113 °F, 45 °C (Pensky-Martin closed cup)
Solubility In water, 2.3 mg/L at 25 °C
Density 1.14 at 68 °F (EPA, 1998) - Denser than water; will sink
Vapor Pressure 0.00029 mmHg at 77 °F (EPA, 1998)
LogP log Kow = 5.0 un-ionized
Stability/Shelf Life Stable for at least 1 yr at room temperature, & for at least 5 days at 80 °C
Decomposition When heated to decomposition it emits very toxic fumes of /nitrogen, phoshorous, and sulfur oxides/.
Corrosivity Corrosive to iron & unprotected tinplate
pH Weakly basic
Ionization Efficiency Positive
Refractive Index Index of refraction: 1.520 at 25 °C/D
Kovats Retention Index 2008.7 2006.9 2011.6 2012.2
Other Experimental Properties Decomposes above circa 194 °C ... stable for at least 1 year at room temperature and for at least 5 days at 80 °C. Hydrolysed by acid and base; DT50(25 °C) 52-1200 days (pH range 5.5-8.5), most stable pH 7-8.
Chemical Classes Pesticides -> Organophosphate Insecticides

SAFETY INFORMATION

Signal word Danger
Pictogram(s)

Skull and Crossbones
Acute Toxicity
GHS06

Environment
GHS09
GHS Hazard Statements H301:Acute toxicity,oral
H312:Acute toxicity,dermal
H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P270:Do not eat, drink or smoke when using this product.
P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

COMPUTED DESCRIPTORS

Molecular Weight 333.39 g/mol
XLogP3 4.8
Hydrogen Bond Donor Count 0
Hydrogen Bond Acceptor Count 7
Rotatable Bond Count 9
Exact Mass 333.12759981 g/mol
Monoisotopic Mass 333.12759981 g/mol
Topological Polar Surface Area 88.8 Ų
Heavy Atom Count 21
Formal Charge 0
Complexity 335
Isotope Atom Count 0
Defined Atom Stereocenter Count 0
Undefined Atom Stereocenter Count 0
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 1
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

Straw colored liquid. Used as a pesticide. (EPA, 1998)