What 铵 means
It identifies ammonium within Chinese compound names.
Chinese chemical names were standardized over 1908–1933, the historical setting for terms such as 铵盐. In this simplified character, 钅 is the shortened form of 金, the component for metal, and 安 hints at the Mandarin sound: roughly “an,” with a low, dipping-rising third tone.
A technical chemistry term used in compound names, textbooks, and laboratory writing.
Keep 氨 (NH₃) distinct from 铵 (NH₄⁺); they name different chemical forms.
Don't confuse it with
2Combination ideas
2Ammonium chloride.
An ammonium salt.
Questions people ask
1Why does 铵 show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type 铵
Windows (Word)
Alt+XType 94F5, then Alt+X to get 铵.
Windows
Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win + .).
macOS
Control+Command+SpaceOpen the character viewer and search “cjk unified ideograph-94f5”.
Linux
Ctrl+Shift+UType 94f5, then Enter or Space.
HTML
铵CSS
\94F5Mandarin pinyin input
Pinyin enters Mandarin sounds with Latin letters. Type `an` and select 铵 from the character candidates.
Codes and encoding1 code points
HTML decimal
铵
HTML hex
铵
CSS content
content: "\94F5";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E9%93%B5
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.