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Home> Latest News> ACH standard and usage method

ACH standard and usage method

USP-34 Standard Analytic and Twin companies ACH Indicators

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USP-34 standard, Al2 (OH) 5Cl.2H2O 12042-91-0 hydroxyl aluminum chloride chemical formula. Theory deserves Al content for 54/210.48 = 25.655% and the Cl content 35.45/210.48 = 16.84%.

 USP-34 standard, noted that the standard range for the content is 90% -110%, drawn standard Al content is 23.1-28.2%, the Al2O3 content is 43.63-53.27%, a Cl content of 15.16-18.5%.

Our company’s ACH: Al2O3 content :46-48%; the Cl content :15.8-16.8%. our ACH Higher than usp-34 standard.

50% ACH liquid refers to contain an aqueous solution of 50% of the Al2 (OH) 5Cl.2H2O, USP-34 ACH solution, Al2O3 content 102/210.48/2 = 24.23% theory, Cl content 35.45/210.48/2 = 8.42%. Then on the range of 90-110% of its standard content allows the USP-34 Al2O3 content in the range of 21.81-26.65; Cl content in the range of 7.58-9.26.

Our company’s ACHAl2O3 content 23-24%; Cl content of 7.9-8.4%, that is higher than the USP-34 standard.

The remaining liquid Fe  75ppm As  2ppm, heavy metals  0.001% the solid Fe  150ppm As ≤ 2ppm, heavy metals ≤ 0.002% all can find out directly from the USP-34 standard. Standards of Fe in the Fe content is detected in the standard method ultimately is drawn in the color contrast of 75ppm and 150ppm.

 

Usage:

The liquid may be used directly metering device according to the experimental dosage inputs required treated water; solids may Ann solids with tap water, pure water, etc.: water = 1:1.5 ratio of about dissolved into a solution, like the use of liquid when ACH may also be specified according to the customer the content of free diluted to the desired concentration before use. 

Dosage:

General water treatment dosage

Solid: 20ppm (15-25ppm) or one million tons of water add 20 tons ACH solid

Liquid: 40ppm (30-50ppm) 1000000 tons of water add 40 tons ACH liquid