85 phosphoric acid refers to the liquid phosphoric acid containing 85 grams of H3PO4 in 100g of phosphoric acid solution. The concentration of the substance amount of 85% concentrated phosphoric acid is 1.874g/ml. Phosphoric acid 85% is thick liquid, colorless, transparent or slightly light-colored in appearance. Chemate can supply both food grade and tech grade 85 phosphoric acid. Feel free to inquiry us for the best quotation.
| N.W | G.W | Qty of Drums/20’fcl | Loading | |
| 1 | 35kgs/drum | 36.5kgs/drum | 760drums | Net 26.6MT per 20’fcl |
| 2 | 330kgs/drum | 340.5kgs/drum | 80drums | Net 26.4MT per 20’fcl |
| 3 | 1650kgs/IBC | 1710kgs/IBC | 16drums | Net 26.4MT per 20’fcl |
| Item | Index | |
| Food Grade 85 Phosphoric Acid | Tech Grade 85 Phosphoric Acid | |
| Color/Hazen ≤ | 20 | 30 |
| Phosphoric acid (H3PO4) content, % ≥ | 85.0 | 85.0 |
| Arsenic (As) content, % ≤ | 0.00005 | 0.005 |
| Fluorine (F) content, % ≤ | 0.001 | — |
| Heavy metal (Pb) content, % ≤ | 0.0005 | 0.001 |
| (Fe) % ≤ | — | 0.002 |
| Easily oxidized substances (H3PO3) content, % ≤ | 0.012 | — |
| （CL）% ≤ | — | 0.0005 |
| （SO4）,% ≤ | — | 0.005 |
85 phosphoric acid density refers to the ratio of its real mass to volume. Its density is calculated by dividing its substantial mass by its volume in kilograms per cubic meter (kg/m3). The density of 85 phosphoric acid generally ranges from about 1.7 g/cm3 to 3.4 g/cm3. Its density is inversely proportional to its solubility, since the more soluble, the lower its density.
The 85 phosphoric acid density can be determined by experimental measurement. According to different experimental processes and the results, adopt appropriate experiments to measure the density of 85% phosphoric acid in order to obtain more accurate results.
In addition, when testing the density of phosphoric acid, please follow certain safe operating conditions. Avoid contamination by high temperature and harmful substances as much as possible. Meanwhile, use good experimental instruments and analytical equipment to ensure reliable experimental results.
Phosphoric acid 85 percent has many advantages. It can effectively inhibit the growth and reproduction of harmful microorganisms, promote the growth and development of plants, increase the yield of crops. At the same time, it can also improve the quality of farmland, purify water, protect soil and prevent water pollution. So it is widely used in agriculture, industry and household purposes.
In addition, 85 phosphoric acid can also be used to disinfect water supply, prevent pathogenic microbial contamination, protect water resources, promote public health, purify water bodies and improve the quality of water supply for residents, prevent water pollution. As a harmless and low-toxic substance, 85 ortho phosphoric acid can be sued for safe disinfection or purification of water without causing harm to human body and environment.
The crystallization point of phosphoric acid is 21°C. When the temperature is lower than this temperature, hemihydrate crystals will precipitate. Generally, commercially available phosphoric acid will deviate from its crystallization point when it is lower than 21°C, and crystallization will not occur immediately. This is due to the supercooling properties of phosphoric acid. But as long as such a low temperature lasts for a period of time, phosphoric acid will easily crystallize in a static state.
Crystallization of phosphoric acid is a physical change rather than a chemical change like other liquid crystallization. Its chemical properties won’t change due to crystallization, as long as its is melted at a temperature or diluted with heated water, it can still be sued normally.
The higher the concentration of phosphoric acid, the higher the purity and the higher the crystallinity. According to experience, when the temperature is around 4℃, the crystallinity of 85% phosphoric acid increases. If crystalline phosphoric acid is accidentally mixed in, it will cause the phosphoric acid that was not crystallized to be immediately infected and crystallized. Moreover, the crystallization of phosphoric acid 85 percent is extremely rapid, causing most of the phosphoric acid storage containers to crystallize. After the crystallization of liquid phosphoric acid, the phosphoric acid in the upper part becomes thinner, and the needle-like crystal pure phosphoric acid is deposited in the lower part.
According to experience, 75% phosphoric acid is also more difficult to crystallize at lower temperatures. Therefore, under lower temperature conditions, it is recommended to use 75% phosphoric acid.
85% Phosphoric Acid in Drum
When sampling, once phosphoric acid crystals are found in the drum, don’t use this sampling tool with crystals for other sampling. Because when it comes into contact with other liquid, it is very easy to cause the crystallization of other uncrystallized liquid phosphoric acid.
Bulk 85 Phosphoric Acid
It is necessary to do a good job of heat preservation for acid discharge pipelines and storage tanks. Manufacturers with conditions can use low-temperature steam or hot water for heat preservation. In addition, the manufacturer can adjust the concentration of phosphoric acid in time according to production needs. It is better to use 80% and 75% phosphoric acid.
During use, pay attention to the insulation of the phosphoric acid pipeline. Once the phosphoric acid pipeline is crystallized, it can be heated on the outer wall with steam to melt it, and the inner wall tube can be purged with steam until the phosphoric acid crystals are completely melted, so as to prevent the recrystallization of the phosphoric acid pipeline.
In drum
If crystallization of phosphoric acid is found, it can be heated in a hot water bath. Put the barreled crystalline phosphoric acid into a container, fill the container with water, and then inject steam into the water.
Keep the temperature of the water bath at 50-60°C for about a day and night.
Stir and shake regularly during the heating process to ensure that the liquid is evenly heated.
Crystalline phosphoric acid will slowly melt into a liquid without changing its physical and chemical properties.
In tank
Heating pipeline hot water for water circulation heating treatment. Control the water temperature below 90℃. For that, Temperature exceeding 100℃ may cause phosphoric acid to corrode packaging containers and deteriorate.
During use, pay attention to the insulation of the phosphoric acid pipeline. Once the phosphoric acid pipeline is crystallized, it can be melted by heating the outer wall with steam. And use steam to purge the inner wall pipe until the phosphoric acid crystals are completely melted, so as to prevent the recrystallization of the phosphoric acid pipe.
First, 85% phosphoric acid is concentrated phosphoric acid. The PH value is generally for dilute solutions, not concentrated solutions.
The PH value of phosphoric acid is related to its specific concentration. For example, if the phosphoric acid solution is 1% concentration (that is, 10 ml of phosphoric acid in water, 90 ml of water), then the pH value of 1% phosphoric acid is 2.2.
At the same time, the pH value changes with the change of its concentration. Generally speaking, the higher the concentration, the higher the pH value, that is, the pH value will change when diluting different concentrations of phosphoric acid.
85 phosphoric acid belongs to secondary inorganic acid with corrosive property. The bung hole of the package must be tightly sealed with an inner cover and an outer cover. At any time, please keep it sealed.
The change of 85 phosphoric acid price is affected by the raw material yellow phosphorus and other factors. The price of chemicals is always volatile. If you have any need, please feel free to inquiry us for the latest price.