产品展示
  • 调心滚子轴承,22200系列,双列球面滚子,极强径向承载和一定轴向承载力,自动调心性能好
  • 购物车配备太阳能顶棚,晴天自动充电,为车载电子设备提供持续电力供应
  • 可调节支架,能根据使用者身高与操作习惯,灵活调整机器高度,使操作过程更加舒适,减少疲劳感
  • 包子输送缓存架带有温控功能,保持缓存包子的温度
  • 墙壁式电动悬臂吊机配备电量显示装置,可实时监控电池电量
联系方式

邮箱:admin@aa.com

电话:020-123456789

传真:020-123456789

汽车配件

kmno4如何英文命名—Formal IUPAC Nomenclature:

2025-05-11 01:32:28      点击:999
Okay,何英 let's discuss the various ways to name KMnO₄ in English, considering both formal IUPAC nomenclature and more common, practical usage.


The most accurate and formal name for KMnO₄ according to IUPAC (International Union of Pure and Applied Chemistry) nomenclature is:

Potassium tetraoxomanganate(VII)

Let's break this down:

Potassium: Identifies the cation, K⁺.
tetraoxomanganate: Indicates a complex anion. "tetraoxo" means four oxygen atoms are bonded to the central atom. "manganate" specifies the central atom is manganese.
(VII): This is the oxidation state of the manganese atom, indicated using Roman numerals. Manganese in KMnO₄ has an oxidation state of +7.

Why is this formal name used less frequently?

Length and Complexity: It's quite a mouthful. It's accurate, but cumbersome for routine use, especially in less formal settings.
Not Always Necessary: In many contexts, the oxidation state of manganese is implied or understood.

More Common and Practical Names:

The most widely used names for KMnO₄ are:

Potassium Permanganate: This is the most common and universally recognized name.
Condy's Crystals: This is a historical and somewhat archaic name, primarily used in medical or first-aid contexts (especially in the UK). It refers to a brand or product name from the past.

Why are "Potassium Permanganate" and "Condy's Crystals" preferred in most situations?

Simplicity: They are short, easy to remember, and relatively unambiguous.
Widespread Recognition: Most chemists, scientists, and even laypeople (especially in contexts like water treatment or wound care) will immediately understand what "potassium permanganate" refers to.
Historical Usage: The term "permanganate" has been used for a long time and is ingrained in the chemical vocabulary.

Alternative Considerations and Less Common Names:

Potassium Manganate(VII): While technically accurate, this is less common than "potassium permanganate." It explicitly states the oxidation state of manganese, but it's often considered redundant.
Permanganate of Potash: This is an older term that you might encounter in historical texts, but it's not in common modern usage.
Manganese Potassium Oxide: This is a very general description and is not a suitable name for KMnO₄. It doesn't convey the specific structure or properties of the compound.

Naming Considerations Based on Context:

Formal Scientific Papers/Publications: While "potassium permanganate" is often acceptable, using the IUPAC name "potassium tetraoxomanganate(VII)" at least once in the paper (typically in the introduction or materials section) to provide the most precise and unambiguous identification of the compound is considered good practice.
Laboratory Settings: "Potassium permanganate" is perfectly acceptable for labeling bottles, writing lab reports, and general discussions.
Industrial/Commercial Use: "Potassium permanganate" is the standard name for purchasing, selling, and discussing industrial applications.
Medical/First Aid: "Potassium permanganate" is common, but you might encounter "Condy's Crystals" (especially in older literature or certain regions).
Teaching/Education: "Potassium permanganate" is the preferred name for most introductory chemistry courses. When discussing oxidation states and IUPAC nomenclature, you can introduce "potassium tetraoxomanganate(VII)" to illustrate the principles.

In Summary:

While the formal IUPAC name is "potassium tetraoxomanganate(VII)," the overwhelmingly preferred and practically useful name in English is potassium permanganate. "Condy's Crystals" is a historical alternative with limited modern usage. The best choice depends on the specific context, but for most purposes, "potassium permanganate" is the clear winner. In formal scientific writing, it's good practice to mention the IUPAC name at least once.

IK测试标准灯具:为您的照明设备提供无与伦比的安全保障
大米标准样品籼米——质量保障、源自天然的优质选择