Product name: Auxiliaries for Purifying Phosphoric Acid Urea Phosphate
CAS number : 4861-19-2
EINECS number : 225-464-3
Molecular formula : CO(NH2)2·H3PO4
Molecular weight : 158.6
Property:White crystal, easily soluble in water, but not in organic solution, melting point is 117.3ºC,its water solution is strongly acidic, PH of 1% solution is 1.89, It has got bad heat stability and easily decomposed when heated.
Description:
Auxiliaries for Purifying Phosphoric Acid Urea Phosphate
Phosphoric acid is an important industrial chemical with wide applications in the fertilizer, food and pharmaceutical industries. However, impurities in phosphoric acid can affect its quality and performance, reducing its effectiveness in these applications. Therefore, it is crucial to purify phosphoric acid before using it in various processes.
One of the most common impurities in phosphoric acid is urea. Urea is a by-product of the reaction between ammonia and carbon dioxide during the production of ammonium phosphate fertilizer. Urea can cause various problems in downstream processes such as corrosion, scaling and reduced efficiency. Therefore, it is critical to remove urea from phosphoric acid before using it in various applications.
Methods for removing urea from phosphoric acid include precipitation, distillation and adsorption. Among these methods, the auxiliary adsorption method is a commonly used and effective method for purifying phosphoric acid.
Additives are compounds that enhance the adsorption process by increasing the surface area, solubility, and reactivity of the adsorbent. In the case of purified phosphoric acid, additives are used to increase the adsorption capacity of the adsorbent for urea.
One of the commonly used additives for phosphoric acid purification is urea phosphate. Auxiliaries for Purifying Phosphoric Acid Urea Phosphate is a soluble salt that is highly reactive towards urea. When phosphoric acid is added, urea phosphate reacts with urea to form an insoluble complex that can be easily separated from the solution by filtration or centrifugation. Urea phosphate is an effective phosphoric acid purification aid with a urea removal rate of up to 95%.
Another commonly used additive for purifying phosphoric acid is activated carbon. Activated carbon is a porous material with a high adsorption capacity for organic molecules. When phosphoric acid is added, activated carbon can adsorb urea and other impurities, leaving a purified solution. Activated carbon is an effective additive for the purification of phosphoric acid as it can remove up to 90% of the urea content.
In addition to Auxiliaries for Purifying Phosphoric Acid Urea Phosphate and activated carbon, other additives such as ion exchange resin, zeolite, and silica gel can also be used to purify phosphoric acid. The choice of additive depends on various factors such as the type of impurities present in the phosphoric acid, the desired purity level and the cost of the additive.
In summary, the purification of phosphoric acid is a critical step to ensure the quality and performance of phosphoric acid in various applications. Additive adsorption is an effective method to remove impurities such as urea in phosphoric acid. Auxiliaries for Purifying Phosphoric Acid Urea Phosphate and activated carbon are commonly used phosphoric acid purification aids with high urea removal rates. However, the choice of additive depends on various factors and needs to be carefully considered before use.
Specification:
|
Inspection Items |
Unit |
Industrial Grade |
Food Grade |
|
Purity |
%≥ |
98.00 |
98.00 |
|
Phosphorus Pentoxide( P2O5 ) |
%≥ |
44.00 |
44.00 |
|
Nitrogen( N ) |
%≥ |
17.00 |
17.00 |
|
pH value |
— |
1.6 – 2.4 |
1.6 – 2.4 |
|
Moisture |
%≤ |
0.20 |
0.20 |
|
Heavy Metals( As Pb) |
%≤ |
— |
0.001 |
|
Arsenic( As As ) |
%≤ |
— |
0.0003 |
|
Fluoride(As F ) |
%≤ |
— |
0.003 |
|
Water-Insolubles |
%≤ |
0.10 |
0.10 |
Packing: 25kgs plastic woven bag, 24mt/20’FCL
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