Maintenance of solar panels | #renogy #solar panels

Maintenance of solar panels

Solar panel conversion efficiency, typically in the 20% range, is reduced by the accumulation of dust, grime, pollen, and other particulates on the solar panels, collectively referred to as soiling.

What are the types of cosmetics products? | #beauty # beauty supply # beauty store

What are the types of cosmetics products?

What are the classifications of cosmetics?
CLASSIFICATION OF COSMETICS Depending up on the physical form, cosmetics can be classified as: Emulsions. Eg: cold cream; vanishing cream Powders. Eg: face powder, talcum powder, tooth powder. Sticks.

What is cis-2-butene? | #cis-2-butene #Chemical # chemical products # Echemi

What is cis-2-butene?

They are traditionally called cis-2-butene and trans-2-butene or, in slightly more modern terms, (Z)- and (E)-2-butene. The Z and E stand for the German words for “together” (zusammen) and “apart” (entgegen). In principle, cis- and trans-2-butene are conformational isomers; in theo

Synthesis: Carbon With Three or Four Attached Heteroatoms | #Lithiumbromide #Chemical # chemical products # Echemi

Synthesis: Carbon With Three or Four Attached Heteroatoms

A novel and convenient preparation for steroidal 1,3-oxathiolane-2-thiones (cis cyclic dithiocarbonates) at room temperature in high yields has been reported by the reaction of steroidal 5α,6α-epoxides with CS2 in THF using lithiumbromide as catalyst <1997TL5705> (Equation (15)).

Weighing the Health Risks of Melamine Tableware | #Melamine #Chemical # chemical products # Echemi

Weighing the Health Risks of Melamine Tableware

Melamine is a chemical used in the manufacturing of plastic dishes, cups, and other tableware. It gives the dishes a harder, more durable feel than standard plastic.