Raina Zhang

Raina Zhang

@hoochemtec

I'm Raina, part of the team at HOO CHEMTEC (https://www.hoochemtec.com/)—a leading manufacturer and supplier of high-quality water treatment chemicals in China. www.hoochemtec.com

Joined Feb 2026 Last seen Mar 25, 2026
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Raina Zhang posted a new writeup in Biotech Mar 25, 2026
Biotech Chelating Agents: The Molecular "Claws" in Industry and Nature

Discover how chelating agents act like molecular claws to control metal ions. This guide explains their types, from traditional phosphonates to biodegradable GLDA, and their vital roles in water treatment, cleaning, food, and personal care industries.

Raina Zhang · 6 min read
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Raina Zhang posted a new writeup in Science Mar 17, 2026
Science Surfactants: The Simple Science of Everyday Cleaning

Surfactants are the hidden heroes in soaps and detergents. This simple guide explains how these special molecules work to clean everything, from your hands to your clothes. Learn about their types and where you find them every day.

Raina Zhang · 4 min read
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Raina Zhang posted a new writeup in Medicine & Healthcare Mar 13, 2026
Medicine & Healthcare The Vital Link Between Water Treatment Chemicals and Your Health

Clean, safe water is no accident. It relies on specialized chemicals that remove pathogens, clear pollutants, and protect pipes from corrosion. This blog explains how these unseen guardians ensure our water supports, not harms, our health.

Raina Zhang · 4 min read
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