Safety of chemicals
Labelling of chemicals
ADR transport pictograms and hazard classes
GHS pictograms and hazard classes
GHS Hazard and Precautionary Statements (H/P phrases)
Risk and Safety Phrases (R/S phrases)
Hazard symbols for chemicals
Ions - names and formulas
List of functional groups
List of decadic prefixes
Naming of numbers
List of aliphatic chain names
Pilgaard Elements: Properties of the elements.
Pilgaard Polymers: Properties of polymers.
The HTML Shark: HTML and the art of making web sites.
WeirdSpace: Encyclopaedia about pop cultural characters, worlds and concepts.
WeirdSpace Digital Library: Texts in the public domain.