Copper(I) acetylide

Copper(I) acetylide
Names
	IUPAC name Dicuprous acetylide
Identifiers
CAS Number	1117-94-8 ;
3D model (JSmol)	Interactive image;
ChemSpider	14318114 ;
PubChem CID	19021056;
	InChI InChI=1S/C2.2Cu/c1-2;;/q-2;2+1 Key: SQDLRJMJSRRYGA-UHFFFAOYSA-N ; InChI=1/C2.2Cu/c1-2;;/q-2;2+1 Key: SQDLRJMJSRRYGA-UHFFFAOYAK;
	SMILES [C-]#[C-].[Cu+].[Cu+];
Properties
Chemical formula	C2Cu2
Molar mass	151.114 g·mol−1
Appearance	red-brown powder
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	explosive
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 1 mg/m3 (as Cu)
REL (Recommended)	TWA 1 mg/m3 (as Cu)
IDLH (Immediate danger)	TWA 100 mg/m3 (as Cu)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Copper(I) acetylide, Kupfercarbid or cuprous acetylide, is a chemical compound with the formula Cu₂C₂. Although never characterized by X-ray crystallography, the material has been claimed at least since 1856.^[2] One form is claimed to be a monohydrate with formula Cu
₂C
₂.H
₂O is a reddish-brown explosive powder.

^ ^a ^b ^c NIOSH Pocket Guide to Chemical Hazards. "#0150". National Institute for Occupational Safety and Health (NIOSH).
^ Cite error: The named reference cataldo was invoked but never defined (see the help page).

[PGCH-1] NIOSH Pocket Guide to Chemical Hazards. "#0150". National Institute for Occupational Safety and Health (NIOSH).

[cataldo-2] Cite error: The named reference cataldo was invoked but never defined (see the help page).

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