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An example SDS, including guidance for handling a hazardous substance and information on its composition and properties. A safety data sheet (SDS), [1] material safety data sheet (MSDS), or product safety data sheet (PSDS) is a document that lists information relating to occupational safety and health for the use of various substances and products.
Acid rain is rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH).Most water, including drinking water, has a neutral pH that exists between 6.5 and 8.5, but acid rain has a pH level lower than this and ranges from 4–5 on average.
Diagram depicting the sources and cycles of acid rain precipitation. Freshwater acidification occurs when acidic inputs enter a body of fresh water through the weathering of rocks, invasion of acidifying gas (e.g. carbon dioxide), or by the reduction of acid anions, like sulfate and nitrate within a lake, pond, or reservoir. [1]
When produced from these sources, "SDS" products are a mixture of various sodium alkyl sulfates with SDS being the main component. [25] For instance, SDS is a component, along with other chain-length amphiphiles , when produced from coconut oil, and is known as sodium coco sulfate (SCS). [ 26 ]
An example of a HMIS III label for Diesel fuel.. The Hazardous Materials Identification System (HMIS) is a proprietary numerical hazard rating that incorporates the use of labels with color bars developed by the American Coatings Association as a compliance aid for the OSHA Hazard Communication (HazCom) Standard.
The R/S statement code for fuming hydrochloric acid (37%): R: 34-37 S: 26-36-45. The corresponding English language phrases: Risks R: 34 Causes burns R: 37 Irritating to the respiratory system. Safety S: 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S: 36 Wear suitable protective clothing.
Robert Angus Smith FRS (15 February 1817 – 12 May 1884), commonly referred to as Angus Smith, [1] was a Scottish chemist, who investigated numerous environmental issues.He is known for his research on air pollution in 1852, in the course of which he discovered what came to be known as acid rain.
X-ray diffraction patterns for six-line (top) and two-line (bottom) ferrihydrite. Cu Kα radiation. Ferrihydrite (Fh) is a widespread hydrous ferric oxyhydroxide mineral at the Earth's surface, [6] [7] and a likely constituent in extraterrestrial materials. [8]