- 行业: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
An etchant consisting of 10 g of iodine and 20 g of potassium iodide in 100 mL of water.
Industry:Mining
An etchant consisting of 5 g of ferric chloride dissolved in 96 mL of ethyl alcohol to which has been added 2 mL of hydrochloric acid; used in etching nonferrous metals and manganese steels.
Industry:Mining
An etchant for iron or steel, consisting of a solution of 10% to 20% ammonium persulfate in water.
Industry:Mining
An etchant for stainless steels, consisting of 4 g of copper sulfate in 20 mL of hydrochloric acid and 20 mL of water.
Industry:Mining
An etchant for steel; it consists of seven parts of a solution containing 20% methyl alcohol, 20% ethyl alcohol, 20% iso-amyl alcohol, and 10% butyl alcohol added to three parts of a solution of 4% nitric acid in acetic anhydride. This etchant colors sorbite and troostite, leaving the other constituents unaffected.
Industry:Mining
An etchant used to distinguish carbides in chromium steels and tungstides in high-speed steels. The solution contains 20 g of potassium ferricyanide and 10 g of potassium hydroxide in 100 mL of water.
Industry:Mining
An etchant, used for revealing phosphorus segregation in iron and steel, containing 1.5 g cupric chloride, 5 g nickel nitrate, and 6 g ferric chloride, in 12 mL hot water.
Industry:Mining
An etching reagent consisting of 95 ml of ethyl alcohol, 5 ml of hydrochloric acid, and 1 g of picric acid.
Industry:Mining
An etching reagent consisting of a 2% to 5% solution of picric acid in ethyl alcohol. It may be used for plain carbon and low-alloy steels.
Industry:Mining
