Plant growth hormones, growth regulators, fruit drop inhibitors, and herbicides can be used in tomatoes, vegetables, peaches, etc., as well as pharmaceutical intermediates.
It is used as a plant growth regulator, a fruit drop prevention agent, and a herbicide, and it can be used for tomato sparse flowering and peach tree fruiting.
4-Chlorophenoxyacetic acid or parachlorophenoxyacetate (PCPA) is a synthetic pesticide similar to chemicals in a group of plant hormones called auxins.
BASIC INFORMATION Â
Product name
4-CPA
Melting point
157-158°C
Apearance
White prism Needle crystal
CASÂ No.
122-88-3
Odour
A fragrance smell
Characteristic
Sensitive to moisture
Solublity
Soluble in ethanol, acetone and benzene, slightly soluble in water.
Toxicity
Low toxicity, median lethal dose (rat, oral) 850 mg/kg.
Natural
Irritating
Storage condition
Storage conditions 0-6 °C; sealed dry storage. The warehouse is ventilated and dried at a low temperature; it is stored and transported separately from the food materials.
PRODUCTION METHODS
After condensing phenol with chloroacetic acid, it is obtained by chlorination.
1. Condensation The molten phenol was mixed with 15% sodium hydroxide solution, and the chloroacetic acid solution was neutralized with sodium carbonate. The two were put into a reaction pot and heated to reflux for 4 hours. After the reaction is complete, add hydrochloric acid to adjust the pH to 2-3, stir and cool, crystallize, filter, wash in ice water, and dry to obtain phenoxyacetic acid.
2. Chlorination Phenoxyacetic acid and glacial acetic acid were mixed and dissolved by stirring, iodine tablets were added, and chlorine was passed at 26-34°C. After the end of chlorine, it was left overnight, and crystals were precipitated in cold water the next day, filtered, washed with water until neutral, and dried to obtain finished products.
SAFETY INFORMATION
Dangerous goods signs: Â Xn, Xi Hazard Category Code : 22-R22 Safety instructions: Â 22-24/25 Dangerous goods transportation number : 2811 WGK Germany : 1 RTECS : AG0175000 F: Â 21 TSCA: Â Yes HazardClass: Â IRRITANT Customs code: Â 29189090 Poisonous Substances Data: Â 122-88-3 (Hazardous Substances Data)APPLICATION
Plant growth hormones, growth regulators, fruit drop inhibitors, and herbicides can be used in tomatoes, vegetables, peaches, etc., as well as pharmaceutical intermediates.
It is used as a plant growth regulator, a fruit drop prevention agent, and a herbicide, and it can be used for tomato sparse flowering and peach tree fruiting.
4-Chlorophenoxyacetic acid or parachlorophenoxyacetate (PCPA) is a synthetic pesticide similar to chemicals in a group of plant hormones called auxins.
BASIC INFORMATION Â
Product name
4-CPA
Melting point
157-158°C
Apearance
White prism Needle crystal
CASÂ No.
122-88-3
Odour
A fragrance smell
Characteristic
Sensitive to moisture
Solublity
Soluble in ethanol, acetone and benzene, slightly soluble in water.
Toxicity
Low toxicity, median lethal dose (rat, oral) 850 mg/kg.
Natural
Irritating
Storage condition
Storage conditions 0-6 °C; sealed dry storage. The warehouse is ventilated and dried at a low temperature; it is stored and transported separately from the food materials.
PRODUCTION METHODS
After condensing phenol with chloroacetic acid, it is obtained by chlorination.
1. Condensation The molten phenol was mixed with 15% sodium hydroxide solution, and the chloroacetic acid solution was neutralized with sodium carbonate. The two were put into a reaction pot and heated to reflux for 4 hours. After the reaction is complete, add hydrochloric acid to adjust the pH to 2-3, stir and cool, crystallize, filter, wash in ice water, and dry to obtain phenoxyacetic acid.
2. Chlorination Phenoxyacetic acid and glacial acetic acid were mixed and dissolved by stirring, iodine tablets were added, and chlorine was passed at 26-34°C. After the end of chlorine, it was left overnight, and crystals were precipitated in cold water the next day, filtered, washed with water until neutral, and dried to obtain finished products.
SAFETY INFORMATION
Dangerous goods signs: Â Xn, Xi Hazard Category Code : 22-R22 Safety instructions: Â 22-24/25 Dangerous goods transportation number : 2811 WGK Germany : 1 RTECS : AG0175000 F: Â 21 TSCA: Â Yes HazardClass: Â IRRITANT Customs code: Â 29189090 Poisonous Substances Data: Â 122-88-3 (Hazardous Substances Data)
A double wire Fence, also known as a twin wire fence or 2D fence, is a type of fencing system that consists of two parallel horizontal wires connected by vertical wires. The horizontal wires are usually spaced apart at a fixed distance, while the vertical wires are spaced at regular intervals to form a grid-like pattern.
This type of fence is known for its strength and durability. The double wire construction provides extra rigidity and stability, making it suitable for a wide range of applications, including residential, commercial, and industrial settings. It is commonly used for security purposes, as it is difficult to cut or break through.
The double wire fence is available in various heights and can be customized to meet specific requirements. It can be installed with posts and panels or as a roll of Wire Mesh that is stretched between posts. The fence can be coated with a protective layer, such as galvanized or PVC coating, to enhance its resistance to corrosion and weathering.
Overall, the double wire fence is a popular choice for those seeking a strong and long-lasting fencing solution that provides both security and aesthetic appeal.