| sulfuric acid |
A strong acid that, when concentrated is extemely corrosive to the skin and mucous membranes. It is used in making fertilizers, dyes, electroplating, and industrial explosives.
출처: www.seniormag.com/conditions/cancer/cancerglossary...
|
|---|---|
| sulfur |
(S, #16) a pale-yellow, brittle, solid element found near volcanoes
출처: www.msnucleus.org/membership/html/k-6/rc/dictionar...
|
| sulfur |
A pale yellow, nonmetallic chemical element. Sulfur compounds often have a strong smell, like rotten eggs.
출처: www.reefed.edu.au/glossary/s.html
|
| sulfur |
A pale yellow, nonmetallic element (chemical symbol S) that is found alone in nature but is also found in coal, oil, and natural gas. When these are burned, sulfur combines with oxygen to make sulfur dioxide (chemical symbol SO2), a toxic gas. In the atmosphere, sulfur dioxide can combine with hydrogen in water to make acid rain. Sulfur dioxide is also used to manufacture pesticides. It has a strong, sour, rotten-egg smell. ...
출처: www.ecohealth101.org/glossary.html
|
| sulfuric acid |
chemical formula H 2 SO 4 , sulfuric acid is primarily used to strip photoresist as part of a sulfuric acid - hydrogen peroxide mixture. Sulfuric acid will strip photoresist on it's own but carbon, C, build up in the bath. The addition of hydrogen peroxide, H 2 O 2 , volatizes the carbon from the bath as carbon dioxide, CO 2 , and carbon monoxide, CO. Sulfuric acid is commonly sold as a 98% solution and has a density of 1.84Kg/L. ...
출처: www.icknowledge.com/glossary/s.html
|