This box is used as a module in the {{Chembox}}. This template does not have any parameters, it only shows output if page "{{pagename}} (data page)" exists. See the example below for Ammonia, where Ammonia (data page) exists.

Chembox Supplement/doc
পৰিশিষ্ট তথ্য পৃষ্ঠা
প্ৰতিসৰণাংক (n),
ডাইইলেক্ট্ৰিক ধ্ৰুৱকr), ইত্যাদি।
তাপগতিবিষয়ক
তথ্য
দশা আচৰণ
কঠিন–তৰল–গেছ
UV, IR, NMR, MS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
  • Tracking categories (test):
  • None

By default, the name for the data page is [[<pagename> (data page)]]. So for ammonia, that is Ammonia (data page).

In some situations it may be needed to overwrite that default name:

|data page pagename=Some other page. (This option is used on this documentation. Otherwise this page would look for the default pagename Chembox Supplement/doc (data page)).