What is the role of urea and diamine, and the role of fertilizer diamine

Urea uses It can be used in large quantities as a raw material for the production of melamine, urea-formaldehyde resin, hydrazine hydrate, tetracycline, phenobarbital, caffeine, reduced brown br, phthalocyanine blue B, phthalocyanine blue bx, monosodium glutamate and other products. 1. Adjust the amount of flowers 2. Thinning flowers and fruits 3. Rice seed production 4. Pest control 5. Urea iron fertilizer There are many types of diamines, including triethylenediamine, p-phenylenediamine, triethylenediamine, and ethylenediamine, and their effects are different.

I don't know what kind of diamine you're talking about.

Urea chemical formula: CO(NH2)2, relative molecular weight, CO(NH2)2 colorless or white needle-like or rod-like crystals, industrial or agricultural products are white with reddish solid particles, odorless and tasteless. The nitrogen content is about.

Density. Melting point. Soluble in water, formaldehyde, liquid ammonia and alcohol,[1] insoluble in ether and chloroform.

It is weakly alkaline. Diammonium phosphate, also known as diammonium hydrogen phosphate (DAP), is a compound fertilizer containing nitrogen and phosphorus. It is grayish-white or dark gray particles, specific gravity, soluble in water, insoluble in ethanol. It has a certain hygroscopicity, is easy to decompose in humid air, and volatilizes ammonia into ammonium dihydrogen phosphate.

The aqueous solution is weakly alkaline.

The product specifications are: 64% (N18: P2O %(N17: P2O %(N15: P2O542). In order to increase storage resistance, some products are added with a wrapping agent during the production process to make the product appear brown or yellow.

The most basic function of urea and diamine vehicle urea solution is to convert the nitrogen oxides in the automobile exhaust into harmless nitrogen and water, which is energy-saving and environmentally friendly, so that the vehicle can meet the national exhaust emission standard.

Through the intelligent control of the SCR system, when the urea solution in the storage tank is insufficient, the car will not start, in order to ensure the normal driving of the vehicle, sufficient urea solution should be prepared.

Extended information: Urea for vehicles is an aqueous urea solution with a concentration and volume of ultrapure water, and the raw materials for the production are special raw materials for urea and ultrapure water, and the key point is the purity of raw materials. From the perspective of production process, although the purity requirements of automotive urea for raw ingredients are higher than those for general industrial use, the current domestic process can already meet the actual application needs.

AdBlue must use the first grade ultrapure water of the electronics industry. Due to the fact that the SCR catalyst carrier of automotive urea is very prone to metal ion poisoning and loses the pure vertical catalytic effect, the automotive urea solution must use the first-class ultrapure water (resistivity 18M ?) in the electronics industrycm）。

<> fertilizer diamine generally refers to diammonium phosphate, which has many functions, such as strengthening seedlings, improving its ability to resist drought and lodging, increasing the number of ears, and promoting grain fullness. The effect on rice is to promote tillering, prevent root rot, increase the number of ears and grains, etc.; The effect on corn is to improve its drought resistance and lodging resistance, increase the number of corn cobs, and promote grain fullness.

<> fertilizer diamine generally refers to diammonium phosphate, which has many effects, such as the effect on wheat is to strengthen the seedlings, improve its drought resistance and lodging resistance, increase the number of ears by chain annihilation, and promote the high and blind fullness of grains; The effect on rice is to promote tillering, prevent root rot, increase the number of ears and grains, etc.; The effect on corn is to improve its drought resistance and lodging resistance, increase the number of corn cobs, and promote grain fullness.

<> fertilizer diamine generally refers to diammonium phosphate, which has many effects, such as strengthening the seedlings of wheat, improving the ability of the chain to resist drought and lodging, increasing the number of ears, and promoting the fullness of grains; The effect on rice is to promote tillering, prevent rotten cavities and empty roots, increase the number of ears and the number of grains per panicle. The effect on corn is to improve its drought resistance and lodging resistance, increase the number of corn cobs, and promote grain fullness.

Diamine fertilizer is the so-called diammonium phosphate, which is a compound fertilizer containing nitrogen and phosphorus. Its uses are:

1. For wheat, it has the effect of carrying strong seedlings, drought resistance, lodging resistance, increasing the number of ears, and full grains;

2. For wild rice, it has the effect of promoting tillering, preventing root rot, increasing the number of ears, grains per panicle, and full grains;

3. For corn, it has the functions of bending and lacking strong seedlings, drought resistance, lodging resistance, increasing the number of corn cobs, and full grains;

4. For cotton, it has the effect of increasing the number of boll per plant, reducing bud boll shedding, and improving the quality of cotton fiber;

5. For peanuts, it has the effect of increasing the number of pods per plant, strengthening seeds, and improving quality;

It is suitable for all kinds of crops and soils, especially for crops that like nitrogen and phosphorus, and can be used as base fertilizer or top dressing, and should be applied deeply.

Summary. Dear, I am glad to answer for you: the use of diamine fertilizer: the use of diamine fertilizer is to promote growth, strengthen seedlings, drought resistance, lodging resistance and promote flowering.

Pro-ear branches, I am glad to answer for you: the use of diamine fertilizer guess Yanmin: The use of diamine fertilizer is to promote growth, strengthen seedlings, resist drought, and resist lodging to promote the effect of jujube high flowers.

It is commonly used in organic cultivation and agricultural production. It contains amine compounds as nutrients, which have the effect of reducing plant diseases caused by insufficient nutrient metabolism, thereby improving the growth and yield of plants. In addition, diamine chemical fertilizer can also destroy the debris to promote the development and growth of plants at the early cultivation stage, enhance the stress resistance of fiber liquid plants, promote early maturity of plants, and increase the resistance or cold tolerance of crops.

For maize, it has the functions of strengthening seedlings, drought resistance, lodging resistance, increasing the number of corn cobs, and full grains; For cotton, it has the effect of increasing the number of boll per plant, reducing bud boll shedding, and improving the quality of cotton fiber. For peanuts, it has the effect of increasing the number of pods per plant, strengthening seeds, and improving quality; It is suitable for all kinds of crops and soils, especially for crops that like nitrogen and phosphorus, and can be used as base fertilizer or top dressing, and should be applied deeply.

Is Eran high in nitrogen, or high in urea? Which of these two fertilizers is more suitable for fruit trees?

Er'an has a higher nitrogen content, which is more suitable for planting fruit trees, and it is more suitable for planting fruit trees<>

Name of drug: Urea.

Drug alias: NH2CONH2

Product Name: urea

Drug Description: Injection: 30g (100ml) per bottle; 60g（250ml）。

Main Ingredients: None.

Traits: None.

Function, use and usage: The molecular weight of urea is 60, and its aqueous solution is an isotonic solution. Clinically, 30% hypertonic solution is used as a dehydrating agent.

After transglomerular filtration, about 50% is reabsorbed from the tubules and the remaining 50% remains in the tubules. If given in sufficient doses, hyperosmolar pressure can be produced in the tubules and have a diuretic effect. The drug is mainly used to reduce intracranial pressure ** cerebral edema and reduce intraocular pressure ** glaucoma.

This is due to the high osmolality of plasma and tissue dehydration after intravenous infusion of hypertonic urea solution. The drug has a rapid dehydrating effect, works in 15-30 minutes and can last for 3-6 hours. It can significantly improve the symptoms of intracranial hypertension.

However, due to the fact that urea can gradually penetrate the blood-brain barrier and enter the cerebrospinal fluid and brain tissue, bringing in water, the inherent "rebound" phenomenon, the intracranial pressure rises, and the cerebrospinal fluid pressure can even exceed the previous level. Therefore, after the drug is injected again, other dehydrating and hydrouretic drugs must be added. Topical use of its ointment or cream can soften ** and prevent chapped hands and feet.

Dosage: Intravenous or rapid intravenous drip: Each time, the infusion is completed within 20 to 30 minutes.

Because urea has hemolytic effect, it is diluted into a 30% solution intravenously with 1% mannitol or sorbitol or 10% glucose solution when it is used. The solution should be used up within another 24 hours to prevent decomposition and release of ammonia, which is toxic. The drug should not be diluted with water for injection because it can promote hemolysis.

The dose can be repeated after 12 hours. Generally, it can be used for 1 to 3 days. (1) The nature of this product is unstable, the injection solution must be dissolved in 10% glucose solution before use, and must be used up within 24 hours to prevent decomposition and release of ammonia, resulting in toxicity, and can not be used again for more than 24 hours.

2) If the drug is stored for too long, the temperature of the liquid medicine is too low, and the injection is too fast, it can cause symptoms such as flushing, mental excitement, and irritability. (3) If the liquid leaks out of the blood vessels, it can cause local redness, swelling and blistering, so it should be partially blocked with procaine and heated. or wet compress with 50% magnesium sulfate**.

4) It can increase non-protein nitrogen in the blood, so it is contraindicated in patients with renal insufficiency, severe shock and obvious dehydration, active intracranial hemorrhage, and excessive nitrogen accumulation in the blood.