# caput mortuum

> in alchemy, residue from sublimation, symbolizing decline and decay, represented with a stylized human skull; specifically, byproduct from sulfuric acid manufacture, used as a purple pigment

**Wikidata**: [Q421089](https://www.wikidata.org/wiki/Q421089)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Caput_mortuum)  
**Source**: https://4ort.xyz/entity/caput-mortuum


## References

1. Freebase Data Dumps. 2013