V2EX sodium metabisulfite

Sodium Metabisulfite

定义 Definition

偏亚硫酸钠:一种白色至微黄色结晶性粉末,化学式 NaSO。常用作抗氧化剂防腐剂漂白/脱色剂,在食品、酿造、制药与工业处理中用于抑制氧化、抑制微生物生长,并可释放二氧化硫(SO)。也常写作 sodium metabisulphite(英式拼写)。

发音 Pronunciation (IPA)

/sodim mtbaslfat/

例句 Examples

Sodium metabisulfite is used to prevent fruit from browning.
偏亚硫酸钠用于防止水果褐变。

During winemaking, sodium metabisulfite helps control oxidation and unwanted microbes, but excessive amounts can affect flavor and may trigger reactions in sulfite-sensitive people.
在酿酒过程中,偏亚硫酸钠有助于控制氧化和不需要的微生物,但用量过多会影响风味,并可能引发对亚硫酸盐敏感者的不良反应。

词源 Etymology

sodium 来自“苏打/钠”的化学命名传统;meta- 在化学词汇中常表示“变化后的/不结构的”;bisulfite 与“亚硫酸氢盐/亚硫酸盐”相关。metabisulfite 指一种由亚硫酸盐体系衍生、在水中可转化并释放 SO 的盐类,因此常与“保鲜、抗氧化、抑菌”用途联系在一起。

相关词 Related Words

文学作品 Literary Works

该词属于技术性化学品名称,更常见于食品添加剂标准、药典、酿造与工业化学资料中,而非传统文学作品;在面向大众的出版物里通常以更概括的 “sulfites(亚硫酸盐)”“preservatives(防腐剂)” 出现。

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