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2. Chemical plant cost indexes - Wikipedia

   en.wikipedia.org/wiki/Chemical_plant_cost_indexes

   Chemical plant cost indexes are dimensionless numbers employed to updating capital cost required to erect a chemical plant from a past date to a later time, following changes in the value of money due to inflation and deflation. Since, at any given time, the number of chemical plants is insufficient to use in a preliminary or predesign estimate ...

3. Prices of chemical elements - Wikipedia

   en.wikipedia.org/wiki/Prices_of_chemical_elements

   This is a list of prices of chemical elements. Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison. As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium.

4. Chemical peel - Wikipedia

   en.wikipedia.org/wiki/Chemical_peel

   A chemical peel is a treatment used to improve and smooth the texture of the skin. The skin on the face is most commonly treated, but peels can also be performed on the body. The skin on the face is most commonly treated, but peels can also be performed on the body.

5. Wait, What’s a Phenol Peel and Is It Safe?

   www.aol.com/lifestyle/wait-phenol-peel-safe...

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6. Material selection - Wikipedia

   en.wikipedia.org/wiki/Material_selection

   Material selection is a step in the process of designing any physical object. In the context of product design, the main goal of material selection is to minimize cost while meeting product performance goals. [1]

7. Process flow diagram - Wikipedia

   en.wikipedia.org/wiki/Process_flow_diagram

   A process flow diagram (PFD) is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment. The PFD displays the relationship between major equipment of a plant facility and does not show minor details such as piping details and designations.