Template:Chem/doc

Template:Documentation subpage Template:High-use Template:COinS safe This template allows you to render chemical formulas using HTML. Alternatively, you can use Template:Tag, using mhchem LaTeX notation to generate formulas.

Template instructions

This template, Template:Tl, serves to simplify the writing of chemical formulas. For example,

{{chem|H|2|O}}

will yield:

Template:Chem

Algebraic expression as subscript

Algebraic expressions are rendered as subscripts (but must not contain upper case letters).

{{chem|C|''n''|H|2''n''+2}}

gives

Template:Chem

Charge

Ion charge superscripts (for: +/-) are also supported:

{{chem|H|3|O|+}}

yields a "+" as superscript:

Template:Chem

Simultaneous subscripts/superscripts are automatically handled (use a hyphen for the minus sign):

{{chem|SO|4|2-}}

gives "2−" as superscript:

Template:Chem

The hyphen is converted to a true minus sign.

Atomic number and mass number

The first parameter can be used for mass number.

{{chem|4|He}}

gives:

Template:Chem

The first two parameters can be used for mass number and atomic number.

{{chem|4|2|He}}

gives:

Template:Chem

Note

Only the first two parameters can handle two consecutive plain numbers (i.e. without a plus sign or a hyphen (+ or -) following). Otherwise the template will loop. The Chem2 template can be used for e.g. Template:Chem2, heavy water.

See also Template:Tl

Linking

The optional parameter link changes the formula into a link. For example:

{{chem|link=water|H|2|O}}

will yield:

Template:Chem

Individual elements can be linked in the following manner:

{{chem|[[Hydrogen|H]]|2|[[Oxygen|O]]}}

gives

Template:Chem

Notes

• To include "=" in the formula, use "=" For example, "{{chem|CH|2|=CH|2}}" yields Template:Chem.
  • Or, don't use this template. For example, "CH<sub>2</sub>=CH<sub>2</sub>" yields CH₂=CH₂.
• To include "≡" in the formula, use "≡" For example, "{{chem|HC≡CH}}" yields Template:Chem.
• The template accepts up to twenty parameters in addition to link.
• This template uses Template:Tl.

See also

• Template:Tl
• Template:Tl

TemplateData

Template:TemplateData header Template:Collapse top <templatedata> { "params": { "1": {}, "2": {}, "3": {}, "4": {}, "5": {}, "6": {}, "7": {}, "8": {}, "9": {}, "10": {}, "11": {}, "12": {}, "13": {}, "14": {}, "15": {}, "16": {}, "17": {}, "18": {}, "19": {}, "20": {}, "21": {}, "22": {}, "23": {}, "24": {}, "link": { "label": "Link", "description": "Make the formula link to an article", "example": "Water", "type": "wiki-page-name" } }, "description": "Render chemical formulas using HTML. Alternatively, you can use $\dots$, using mhchem LaTeX notation to generate formulas.\n\nUp to 25 unnamed ordered parameters can be used with automatic detection of subscripts and superscripts.", "format": "inline", "paramOrder": [ "link", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24" ] } </templatedata> Template:Collapse bottom