What are the main uses of P-iodo Phenoxy Acetic Acid?

P-iodophenoxyacetic acid, also known as increasing yield, is an organic synthetic substance. Its main use is in the agricultural field, which can be used as a plant growth regulator.

In the flowering period of crops, spraying with a suitable concentration of p-iodophenoxyacetic acid can effectively improve the fruit setting rate of crops. Taking cotton as an example, rational application during its flowering period can reduce the shedding of bolls, thereby increasing cotton yield. In melon and fruit crops, such as tomatoes, eggplants, etc., after application, it can promote fruit enlargement, improve fruit quality, and enhance the commercial value of fruits.

Furthermore, p-iodophenoxyacetic acid can also promote crop rooting. When some flowers and seedlings are cut and propagated, immersing the cuttings in a solution containing p-iodophenoxyacetic acid can accelerate the rooting speed of the cuttings, improve the survival rate of cuttings, promote more developed root systems, enhance the plant's ability to absorb water and nutrients, and lay the foundation for the robust growth of plants.

In addition, under specific conditions, p-iodophenoxyacetic acid also has a certain impact on the stress resistance of crops. It can help crops better resist adverse environmental stresses such as drought and low temperature, so that crops can maintain relatively stable physiological functions in adversity, and ensure that crop yield and quality are not damaged too much. In short, p-iodophenoxyacetic acid has important application value in agricultural production and is an effective auxiliary for improving crop yield and quality.

What are the Physical Properties of P-iodo Phenoxy Acetic Acid

P-iodophenoxyacetic acid is a genus of organic compounds. Its physical properties are worthy of detailed investigation.

First of all, its appearance, under normal circumstances, P-iodophenoxyacetic acid is a white crystalline powder, which is pure and delicate, with a soft luster, resembling frost condensation. This appearance is easy to identify and handle in practical applications, and also helps to disperse and mix in various systems.

Secondary and melting point, its melting point is in a specific range, about [X] ℃. The characteristics of the melting point are not only related to its phase transition, but also closely related to the purity of the compound. The higher the purity, the closer the melting point is to the standard value, which is an important basis for judging its quality. In the fields of chemical preparation and pharmaceutical synthesis, accurately grasping the melting point can ensure the stability of product quality and performance.

Solubility is also a key physical property. P-iodophenoxyacetic acid is slightly soluble in water, but it has good solubility in organic solvents such as ethanol, ether, and acetone. This property makes it possible to choose a suitable solvent according to different reaction requirements in organic synthesis reactions to facilitate the smooth progress of the reaction. For example, in some esterification reactions or substitution reactions, the solubility of organic solvents can be used to promote full contact of the reactants and improve the reaction rate and yield.

Furthermore, its density also has a specific value, about [X] g/cm ³. Density is of great significance in the measurement, storage and transportation of materials in chemical production. Accurately knowing the density can reasonably plan the volume of the container to ensure the safety and efficiency of material storage and transportation.

In addition, P-iodophenoxyacetic acid has a certain stability, and its chemical structure can be maintained relatively stable at room temperature and pressure without the action of special chemical reagents. In case of extreme conditions such as high temperature and strong oxidants, or chemical reactions may be triggered, resulting in structural changes. The grasp of this stability is crucial for its storage, transportation and application.

P-iodo Phenoxy Acetic Acid

p-Iodophenoxyacetic acid has unique chemical properties and is of great value for investigation. This substance is a white needle-like crystal, odorless, slightly acidic in taste, with a melting point of about 154-158 ° C, and exhibits a stable state at a specific temperature.

In terms of solubility, it is slightly soluble in water, but easily soluble in organic solvents such as ethanol, ether, and acetone. This property makes it effective in the field of organic synthesis, which can be effectively dispersed and reacted with the help of organic solvents, just like setting up a suitable stage for chemical reactions.

In terms of chemical activity, the presence of iodine atoms and phenoxy groups on the benzene ring endows it with various reactivity. The iodine atom can participate in the nucleophilic substitution reaction, just like an active participant, and can interact with many nucleophilic reagents to realize the conversion of functional groups, paving the way for the synthesis of novel compounds. The electronic effect of the phenoxy group affects the charge distribution on the benzene ring, further regulating its reactivity and selectivity, like a delicate baton, guiding the process of chemical reactions.

In terms of acidity, its carboxyl group can partially ionize hydrogen ions, showing weak acidity. This acidity allows it to neutralize with bases and generate corresponding salts, which play a role in the chemical reaction system of acid-base balance, just like a delicate balance regulator, maintaining the stability of acid and base in the reaction environment.

In terms of stability, p-iodophenoxyacetic acid is relatively stable under normal conditions. However, in case of high temperature, open flame or strong oxidant, the stability is broken, or combustion, oxidation and other reactions are triggered, just like a calm lake throwing boulders into the water, triggering the waves of chemical reactions.

To sum up, p-iodophenoxyacetic acid, with its unique chemical properties, is widely used in many fields such as organic synthesis, medical chemistry, etc. It has become an indispensable and important role in chemical research and industrial production, and continues to promote the progress and development of the chemical field.

What is the Synthesis Method of P-iodo Phenoxy Acetic Acid

The synthesis method of P-iodophenoxyacetic acid is as follows:
First take an appropriate amount of phenol and place it in a clean reactor. Phenol is a commonly used raw material for organic synthesis and has active chemical properties. Then add an appropriate amount of alkali, such as sodium hydroxide. The action of the base can convert phenol into sodium phenol and enhance its nucleophilicity. After the formation of sodium phenol, an appropriate amount of halogenated acetic acid is introduced. When the halogenated acetic acid is preferably iodoacetic acid, the target product P-iodophenoxyacetic acid can be prepared. The nucleophilic substitution reaction occurs between the halogenated acetic acid and sodium phenol. The phenoxy negative ions attack the α-carbon atom of the iodoacetic acid, and the iodine ions leave, thus forming the embryonic form of P-iodophenoxyacetic acid.
However, during the reaction process, the control of temperature is crucial. If the temperature is too high, side reactions are prone to occur and the purity of the product is damaged; if the temperature is too low, the reaction rate will be delayed and take a long time. Therefore, it is necessary to maintain the reaction in a suitable temperature range, about 50 to 60 degrees Celsius. This temperature range can not only ensure the reaction rate, but also effectively inhibit the occurrence of side reactions.
After the reaction is completed, pour the reaction mixture into an appropriate amount of water to dilute the unreacted raw materials and Then organic solvent extraction is used. Commonly used organic solvents such as ether can extract P-iodophenoxyacetic acid into the organic phase. After extraction, an appropriate amount of desiccant is used to dry the organic phase to remove moisture. The desiccant can be selected as anhydrous sodium sulfate, which has a good drying effect.
After drying, the organic solvent is evaporated to obtain crude P-iodophenoxyacetic acid. In order to obtain a pure product, further purification is required. The purification method can be recrystallized. Select a suitable solvent, such as ethanol-water mixed solvent, dissolve the crude product, heat it until it is completely dissolved, and then slowly cool it to crystallize P-iodophenoxyacetic acid. Pure P-iodophenoxyacetic acid can be obtained by filtration and washing crystallization, and its purity can reach the standard required for the experiment.

What is the price range of P-iodo Phenoxy Acetic Acid in the market?

In today's market, the price of p-iodophenoxyacetic acid varies depending on the quality, source, and purchase quantity. If it is an ordinary commercial grade, its price per gram is between a few yuan and tens of yuan. If the purchase quantity is quite large, such as the kilogram level, the price per gram may be slightly reduced, or below a few yuan.

If it is a high-purity product, if it is used for scientific research, its price is high. The price per gram may exceed 100 yuan, or even higher. This is because the preparation of high-purity products requires fine craftsmanship, strict quality control, and high cost.

Also, different suppliers have different pricing. Reputable suppliers with stable products may have slightly higher prices; emerging or small suppliers are competing for the market, and the price may be lower. When purchasing, you should not only focus on low price, but also on quality, after-sales, etc.

To determine the current exact price of p-iodophenoxyacetic acid, you can consult chemical malls, reagent suppliers, or search for quotations on relevant platforms online to get an accurate number.