Food-grade 85 phosphoric ACID has a clear appearance and no odor. The liquid has a thick consistency and can be easily dissolved in water. The density of this chemical is about 1.67 kg/l. Phosphoric acid food-grade 85 is highly acidic with a pH level less than 1. Phosphoric Acid Food Grade,Phosphoric Acid For Plating ,Food Grade Phosphoric Acid,Industry Grade Phosphoric Acid HENAN JINHE INDUSTRY CO.,LTD , https://www.hnironoxide.com
We all know that the electronic densitometer is the most professional detection instrument for detecting the density of materials. Under normal circumstances, water is used as a medium for measurement, which is not only convenient but also economical and practical. What are the methods of water temperature compensation for electronic densitometers?
The density of water varies with temperature. When a professional electronic densitometer measures water as a medium, the instrument has a function of temperature compensation. To make the density measurement more accurate and reduce the error during operation, we need to carry out Water temperature compensation settings.
Electronic density meter water temperature compensation method:
1. When setting the weight of the standard weight in distilled water, the actual temperature of the distilled water must be set first, and the specific gravity of water will change with the temperature of the water. Therefore, it is necessary to use the specific gravity of 1.000 as the basis of water. Temperature compensation.
2. For the temperature compensation coefficient of water, our electron density meter has been deposited at 0-49 degrees centigrade. After measuring the actual temperature of the water with temperature before testing, change the corresponding temperature to the temperature indicated by the thermometer. (Water temperature difference of 6 degrees will differ by 0.001).
3. The default temperature of the electronic density meter factory is 25 degrees. Press the [A] key for a long time to enter the temperature value modification.
4, the steps are as follows:
1. Press and hold the [A] button until the screen displays [C25].
2. Press [A] to modify the number and [ZERO] to shift.
3. After confirming the change, press [ENTER] to confirm, confirm the modification and return to the mode to be tested.
Properties:
colorless and transparent viscous liquid. It is odorless, sour, melting point 42.35 ℃, easily soluble in water, soluble in ethanol, can irritate the skin and cause inflammation, destroy body tissues, and have hygroscopicity.
Uses:
Used as sour agent and yeast nutrient, can be used as seasoning, canned, refreshing drink sour agent, used as yeast nutrition source when brewing, to prevent multiplication of bacteria.
Phosphoric acid is mainly used in the manufacture of various phosphate, such as ammonium phosphate, potassium dihydrogen phosphate, disodium hydrogen phosphate, trisodium phosphate, etc and condensation phosphate class.
It should be stored in a cool, ventilated warehouse. In high-concentration phosphoric acid, it is necessary to pay attention to heat preservation in cold regions in winter to prevent freezing and leakage of containers. Do not store and transport together with alkalis, toxic materials and other corrosive materials. Protect from rain and direct sunlight during transportation. Handle with care during loading and unloading. Violent impact is strictly prohibited to prevent the packaging container from rupturing. In case of fire, dry sand or dry powder fire extinguisher can be used for fighting.
October 26, 2023