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All articles starting with Z

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Zinc peroxide

Zinc peroxide (ZnO2, also known as zinc bioxide or zinc dioxide) is a white inorganic peroxide of zinc, a strong oxidizing agent used as an antiseptic and photocatalyst that decomposes to zinc oxide on heating.

Zinc phosphate

Zinc phosphate (Zn₃(PO₄)₂) is an inorganic compound used as a corrosion-resistant coating on steel and as a dental cement, and it occurs naturally as the minerals hopeite and tarbuttite.

Zinc phosphide

Zinc phosphide (Zn₃P₂) is a gray crystalline inorganic rodenticide, first synthesized in 1740, that releases highly toxic phosphine gas in stomach acid; rodents usually die overnight.

Zinc protoporphyrin

Zinc protoporphyrin (ZPP, ZnPP) is an abnormal heme precursor formed when zinc replaces iron in protoporphyrin during heme synthesis; elevated in lead poisoning and iron deficiency, measured by hematofluorometry as ZPP/heme.

Zinc pyrithione

Zinc pyrithione (CAS 13463-41-7), a zinc pyrithione coordination compound, is an antifungal anti-dandruff shampoo active and cosmetic preservative; banned in EU cosmetics from March 2022 as a CMR 1B substance, still an OTC dandruff drug active in the US.

Zinc selenide

Zinc selenide (ZnSe) is a II-VI compound semiconductor with a 2.7 eV direct band gap, best known for infrared optics in thermal imaging windows and high-power CO2 lasers.

Zinc stearate

Zinc stearate is the zinc salt of stearic acid, a white, hydrophobic, finely divided powder used as a lubricant and mold release agent in plastics, rubber, pharmaceutical tablets, and cosmetics.

Zinc sulfate

Zinc sulfate, also known as zinc vitriol, is a water-soluble inorganic salt of zinc used as a fertilizer, animal feed and dietary supplement, and moss-control herbicide.

Zinc sulfide

Zinc sulfide (ZnS) is an inorganic compound of zinc and sulfur occurring as sphalerite, the principal zinc ore, used as a phosphor and infrared optical material.

Zinc tin oxide

Zinc tin oxide (ZTO) is an amorphous, n-type oxide semiconductor made of zinc, tin, and oxygen, studied chiefly as the channel material of transparent thin-film transistors.

Zinc toxicity

Zinc toxicity: harm from excess zinc via oral overdose, inhaled zinc oxide fumes (metal fume fever), or dermal exposure; chronic excess causes zinc-induced copper deficiency; adult upper limits 25-40 mg/day.

Zinc transporter proteins

Zinc transporter proteins are membrane proteins that move zinc ions across cellular membranes; humans have 14 ZIP importers and 10 ZnT exporters, whose mutations cause at least eight diseases.

Zinc transporters

Zinc transporters are membrane proteins controlling cellular zinc homeostasis: SLC30/ZnT (ZnT1-10) export Zn2+ from the cytoplasm, SLC39/ZIP (ZIP1-14) import it; CDF antiporters versus pH-modulated permeases.

Zinc white

Zinc white, also sold as Chinese white, is a white pigment of zinc oxide, developed in the late 18th century as a non-toxic substitute for lead white.

Zinc-air battery

A zinc-air battery is a metal-air electrochemical cell that generates electricity by oxidizing zinc with oxygen drawn from the air, reaching high energy density at low cost.

Zinc-bromine battery

A zinc-bromine battery is a rechargeable hybrid flow battery that plates zinc during charging, first commercialized by Exxon in the 1970s and used for stationary energy storage.

Zinc-ion battery

A zinc-ion battery (ZIB) is a rechargeable battery that uses a zinc metal anode and, typically, a water-based electrolyte, aimed mainly at low-cost, grid-scale energy storage.

Zinc-iron flow battery

A zinc-iron flow battery is an aqueous redox flow battery using zinc and iron redox couples with electrolytes pumped from external tanks, suited to large-scale energy storage.

Zinc-nickel battery

The zinc-nickel battery, or NiZn, is a rechargeable battery pairing a zinc negative electrode with a nickel oxyhydroxide positive one in alkaline electrolyte, patented by Thomas Edison in 1901.

Zinc-responsive necrolytic acral erythema

Zinc-responsive necrolytic acral erythema is a rare skin condition causing red, scaly plaques on the extremities, linked to hepatitis C and often improved by oral zinc.

Zinc–carbon battery

The zinc–carbon battery, also called a carbon-zinc battery or ZnC cell, is a non-rechargeable dry cell delivering 1.5 volts, still widely made after more than a century.

Zinc–iodide flow battery

The zinc–iodide flow battery, also called zinc–polyiodide flow battery, is a hybrid redox flow battery storing energy by plating zinc and converting iodide to triiodide.

Zinc–iodine battery

The zinc–iodine battery is a rechargeable battery that couples reversible iodine conversion at a carbon cathode with zinc plating at the anode, usually in a water-based electrolyte.

Zinc–manganese dioxide battery

The zinc–manganese dioxide battery pairs a zinc anode with a manganese dioxide cathode, and its primary alkaline form is the standard household AA, AAA, C, D, and 9V cell.

Zincke imine ring expansion of azaarenes

Zincke imine ring expansion of azaarenes is a family of skeletal-editing reactions in which activated pyridines open to Zincke imines, letting chemists expand, contract, or rebuild the ring.

Zincke imine ring opening of pyridines

Zincke imine ring opening of pyridines is a skeletal-editing reaction in which an N-activated pyridinium salt is opened by a nucleophile to a Zincke imine, enabling C3 functionalization.

Zincke imines for skeletal editing

Zincke imines are open-chain azatriene intermediates formed when amines ring-open activated pyridinium salts, serving as the branching point of skeletal editing reactions that convert pyridines into benzenes, thiophenes, and pyrroles.

Zinda (film)

Zinda (ज़िंदा, "Alive") is a 2006 Hindi action thriller directed by Sanjay Gupta, an unofficial remake of Oldboy, starring Sanjay Dutt as a man imprisoned 14 years; it flopped at the box office.

Zinda Kaul

Zinda Kaul (زندہ کول), known as "Masterji", was a Kashmiri Pandit poet and teacher, the first Kashmiri poet to win the Sahitya Akademi award in 1956.

Zindagi (ज़िंदगी) (TV channel)

Zindagi (ज़िंदगी), also known as Zee Zindagi or Zindagi TV, is an Indian Hindi-Urdu entertainment channel owned by Zee Entertainment, launched in 2014 to broadcast Pakistani dramas legally in India.