carbon dioxide; a colorless, odorless gas used for carbonated drinks and fire extinguishers, also known as [[碳酸气|碳酸氣|tan4 suan1 qi4]]

Aluminum oxide; a white, insoluble powder formed by dehydrating aluminum hydroxide at high temperatures.

sulfur dioxide (SO2); a colorless, toxic gas with a pungent odor used as a bleach, preservative, and disinfectant

a chemical compound consisting of oxygen combined with another element or group

A colorless, odorless, and highly toxic gas produced by the incomplete combustion of carbon; used as a fuel and in chemical industries.

(chemical) peroxide

hydrogen peroxide; a chemical compound with the formula H2O2

sodium hydroxide; caustic soda; NaOH

oxidizing agent; oxidant; a substance that causes another substance to be oxidized in a chemical reaction while itself being reduced

silicon dioxide (SiO2); a common inorganic compound found in nature as sand, quartz, or agate and used to make glass and optical instruments

nitrogen dioxide; a toxic reddish-brown gas with a pungent smell, often used to produce high concentrations of nitric acid

calcium oxide; a chemical compound also known as quicklime or [[生石灰|生石灰|sheng1 shi2 hui1]]

magnesium oxide; a white powdery compound used in cosmetics, medicine, and as an insulation material; also called [[苦土|苦土|ku3 tu3]]

A white crystalline powder used industrially as a whitening agent in products like paint, paper, plastic, and cosmetics.

A black, water-insoluble crystalline compound found naturally as pyrolusite; used in dry-cell batteries, as an oxidizing agent in organic chemistry, and as a catalyst.

calcium hydroxide Ca(OH)2; slaked lime

an inorganic compound with the chemical formula KOH; commonly known as caustic potash

inorganic chemical compound containing a hydroxyl group bonded to a metal or non-metal element

A general term for chemical compounds formed from nitrogen and oxygen, such as nitric oxide and nitrogen dioxide. These compounds are often toxic pollutants that contribute to smog and respiratory irritation. Also written as [[氮氧化合物|氮氧化合物|dan4 yang3 hua4 he2 wu4]].

mercuric oxide (HgO)

uranium dioxide; a brown oxide of uranium

Chemical process involving the participation of oxygen; the state or process of being oxidized

nitrous oxide (N2O) or laughing gas

flame produced with an excess of oxygen, often the outermost and hottest part of a flame

the chemical compound silica, commonly found in nature as quartz or sand

Hopcalite canister or cartridge used for air purification

lead monoxide; litharge

white powder produced by heating zinc compounds, used in pigments and medicinal ointments; commonly called [[锌白|鋅白|xin1 bai2]] or [[锌华|鋅華|xin1 hua2]]

A condition caused by inhaling carbon monoxide, typically from incomplete combustion of carbon-based fuels, which prevents red blood cells from carrying oxygen; symptoms include headache, dizziness, and nausea.

A general term for chemical compounds composed of nitrogen and oxygen, such as nitric oxide and nitrogen dioxide. These toxic pollutants contribute to smog, reduce visibility, and cause respiratory irritation.

peroxidation; to oxidize at a higher level than a normal oxide

A chemical compound consisting of one atom of oxygen and one atom of another element.

catalase; an enzyme that catalyzes the decomposition of hydrogen peroxide into water and oxygen; also known as hydrogen peroxidase

nitric oxide; colorless toxic gas that acts as a signaling molecule in the body

a type of microbody found in eukaryotic cells responsible for oxidative metabolism and the breakdown of fatty acids

lead dioxide, a strong oxidizing agent used in lead-acid batteries and match production

vanadium pentoxide V2O5; vanadic anhydride

myeloperoxidase (MPO), an enzyme used in molecular biology and medicine

solid carbon dioxide

a substance that inhibits or slows down the oxidation of materials; used to preserve food or prevent the aging of rubber and petroleum products by removing free radicals

(bound form) hydroxide; the chemical suffix used to indicate a hydroxide of a specific element

brown lead oxide; a toxic inorganic compound used as an oxidizing agent and in the production of lead-acid batteries; also called [[过氧化铅|過氧化鉛|guo4 yang3 hua4 qian1]]

magnesium hydroxide; Mg(OH)2