What is the difference between gold leaching agent and gold stripping powder?
Posted on Jan 17.2025
In the field of modern precious metal extraction, gold leaching agent and gold stripping powder are two common key materials. Although they are all closely related to gold extraction, their functions and application scenarios are significantly different.
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Gold leaching agent is a chemical solution used to extract gold from ore or waste. Its main function is to dissolve gold from its native form through chemical reactions.
Gold stripping powder is a material used to precipitate or adsorb gold from a solution. Usually, after gold is dissolved in the gold leaching solution, gold stripping powder is added to precipitate the gold from the solution to achieve further purification.
The key difference between gold leaching agent and gold removal powder：
Main function
Gold leaching agent:Dissolve gold into solution
Gold stripping powder:Precipitate or adsorb gold from solution
Application stage
Gold leaching agent:Primary extraction stage
Gold stripping powder:Subsequent purification stage
Environmental protection
Gold leaching agent:Excellent environmental performance
Gold stripping powder:Less impact on the environment
Applicable objects
Gold leaching agent:Ore, waste, etc.
Gold stripping powder:Gold-containing solution
The choice of gold leaching agent or gold stripping powder should be based on the specific gold extraction process and needs:
If you need to extract gold from ore or waste, it is recommended to choose an efficient and environmentally friendly gold leaching agent.
If there is already a gold-containing solution that needs to be purified, gold stripping powder is a better choice.
Los Angeles fire death toll rises to 24
Posted on Jan 14.2025
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Xinhua News Agency, Los Angeles, January 12 (Reporter Zhang Shuo) The death toll from wildfires in the Los Angeles area of California, the United States, rose to 24 on the 12th, and more than 2,500 residential buildings and other buildings were confirmed to be completely burned.The latest fire situation report from the California Department of Forestry and Fire Protection showed that as of the evening of the 12th local time, there were still three wildfires burning simultaneously in Los Angeles County, with a burnt area of more than 38,600 acres. Data released by the Los Angeles County Medical Examiner's Office on the same day showed that the death toll caused by the fire had risen from 16 the day before to 24. Among them, 16 people died in the "Eaton Fire" and 8 people died in the "Palisades Fire". The "Eaton Fire" also injured at least 5 firefighters.
The "Palisades Fire" that started in the Pacific Palisades area of Los Angeles County on the 7th continued to spread to 23,713 acres on the 12th, with a controlled area of 13%. According to observations, more than 5,000 buildings were damaged by the fire, of which 1,105 buildings were confirmed to be burned down and 12,250 buildings were threatened by the fire.
The "Eaton Fire" that started in Altadena and Pasadena areas of Los Angeles County on the 7th burned 14,117 acres on the 12th. Compared with the previous day, the fire area did not expand further, and the controlled area increased from 15% to 27%. According to observations, more than 7,000 buildings were damaged by the fire, of which 1,422 buildings were confirmed to be burned down and 39,428 buildings were threatened by the fire.
In addition, the "Hurst Fire" that broke out in the Sylmar area of Los Angeles County did not continue to expand on the 12th, with a burned area of 799 acres and a controlled area of 89%.
According to the California Department of Forestry and Fire Protection, more than 8,500 people, nearly 1,000 fire trucks and dozens of fire helicopters are fighting the fire, and personnel search and rescue, hazardous material monitoring and loss assessment are also being carried out simultaneously. Starting from the evening of the 12th local time, wind speed in the fire area will increase and air humidity will remain at a low level. The "red flag warning" for the fire will continue until the 15th.
EDTA-2Na vs. EDTA-4Na: Choose the Chelating Agent That Best Fits Your Needs
Posted on Jan 07.2025
Chelating agents have been widely used as effective metal ion removers in many fields such as chemistry, environmental protection, food, and medicine. EDTA and its sodium salt forms, such as EDTA-2Na and EDTA-4Na, have become indispensable tools in indust
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Although EDTA-2Na and EDTA-4Na are generally similar in function, their differences in sodium ion content, solubility, pH adjustment, etc., make them show unique advantages in different applications.
1. Solubility and solution preparation
EDTA-4Na is suitable for situations where high concentration solutions need to be prepared.
EDTA-2Na is suitable for situations where the sodium ion content in the solution should not be too high, or when a lower concentration of EDTA solution is required.
2. pH effect
EDTA-4Na is suitable for applications that are more relaxed about pH values, or where a stronger alkaline environment is required.
EDTA-2Na is suitable for situations where the pH requirements are more neutral or lower.
3. Metal ion complexation and coordination ability
EDTA-4Na is suitable for applications where the metal ion concentration is high and strong complexation ability is required.
EDTA-2Na is suitable for applications where the metal ion concentration is low or weak complexation is required.
4. Biomedical and laboratory applications
EDTA-4Na is often used in experiments such as high concentration and strong complexation metal ion removal and chemical analysis.
EDTA-2Na is suitable for use in systems that are sensitive to sodium ions, or in applications where lower sodium ions are required.
5. Applications in Food and Beverages
EDTA-4Na is more common in food and beverage applications, especially where stronger metal ion removal is required.
EDTA-2Na may be chosen if a food formulation with a lower sodium content is required.
6. Water Treatment Applications
EDTA-4Na is suitable for large-scale water treatment, especially when metal ion concentrations are high.
EDTA-2Na is suitable for more delicate water treatment or water treatment that is sensitive to sodium ion concentrations.
Tag:EDTA-2Na,EDTA-4Na,EDTA
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