O,O-Diethyl thiophosphate

O,O-Diethyl thiophosphate - Names and Identifiers

Name	O,O-diethyl thiophosphate, potassium salt
Synonyms	diethylthio diethylthiophosphate O,O-Diethyl thiophosphate POTASSIUM DIETHYL THIOPHOSPHATE) O,O-DIETHYL THIOPHOSPHATE, POTASSIUM SALT O,O-diethyl thiophosphate, potassium salt O,O-DIETHYLPHOSPHOROTHIOATE,POTASSIUMSALT diethoxy-hydroxy-sulfanylidene-phosphorane CHLORPYRIFOS IMPURITY 2 (DIETHYL THIOPHOSPHATE) O,O-DIETHYL HYDROGEN THIOPHOSPHATE POTASSIUM SALT
CAS	5871-17-0
EINECS	627-567-2
InChI	InChI=1/C17H10Cl2N4O2/c1-9-2-4-12-13(6-9)22-17(21-12)11(8-20)7-10-3-5-14(23(24)25)16(19)15(10)18/h2-7H,1H3,(H,21,22)/b11-7+

O,O-Diethyl thiophosphate - Physico-chemical Properties

Molecular Formula	C4H10KO3PS
Molar Mass	208.26
Density	1.532g/cm³
Melting Point	180-186°C(lit.)
Boling Point	580.4°C at 760 mmHg
Flash Point	9℃
Vapor Presure	1.82E-13mmHg at 25°C
Storage Condition	-20°C
Refractive Index	1.741

O,O-Diethyl thiophosphate - Risk and Safety

Risk Codes	R36/37/38 - Irritating to eyes, respiratory system and skin. R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37 - Wear suitable protective clothing and gloves. S16 - Keep away from sources of ignition. S7 - Keep container tightly closed.
UN IDs	UN1230 - class 3 - PG 2 - Methanol, solution
WGK Germany	3

O,O-Diethyl thiophosphate - Introduction

O,O-diethyl thiophosphate, potassium salt(O,O-diethyl thiophosphate, potassium salt) is an organophosphorus compound with the chemical formula C4H10KOPS2. The following is an introduction to its nature, use, preparation and safety information:

Nature:
-Appearance: O,O-diethyl thiophosphate, potassium salt is a colorless to light yellow solid.
-Solubility: It can be dissolved in water or organic solvents.

Use:
-Pesticide: O,O-diethyl thiophosphate, potassium salt is used as an organophosphorus pesticide, which can be used for insecticidal and sterilization.
-Grass resistance: It can also be used as a herbicide for plant control.

Preparation Method:
Generally, O,O-diethyl thiophosphate, potassium salt is synthesized by the following steps:
1. Obtain the reaction raw materials: ethyl alcohol (ethyl alcohol) and thiophosphoric acid (thiophosphoric acid).
2. reaction step: ethyl alcohol reacts with thiophosphoric acid to generate O,O-diethyl thiophosphoric acid (O,O-diethyl thiophosphoric acid).
3. the product obtained: the synthesized O,O-diethyl thiophosphoric acid is reacted with potassium hydroxide (potassium hydroxide) to generate O,O-diethyl thiophosphate and potassium salt.

Safety Information:
- O,O-diethyl thiophosphate, potassium salt is an organic phosphorus compound, which has certain toxicity and should be used safely.
-During use or storage, it must be avoided to react with strong oxidants or other chemicals to avoid danger.
-Wear appropriate personal protective equipment such as gloves, goggles and face shields when used.
-Avoid inhaling the fumes of its powder or solution and try to maintain well-ventilated conditions.
-If you come into contact with this substance, please rinse your skin with plenty of water and seek medical assistance if necessary.
-Observe safety procedures when storing and handling the compound.

Last Update：2024-04-10 22:29:15