Home > 7,7,8,8-Tetracyanoquinodimethane > 7,7,8,8-Tetracyanoquinodimethane(1518-16-7)

7,7,8,8-Tetracyanoquinodimethane(1518-16-7)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
7,7,8,8-Tetracyanoquinodimethane

Synonyms
2,5-Cyclohexadiene-delta(sup 1,alpha:4,alpha)-dimalononitrile
2-[4-(Dicyanomethylidene)-1-cyclohexa-2,5-dienylidene]propanedinitrile
Propanedinitrile, 2,2'-(2,5-cyclohexadiene-1,4-diylidene)bis-
Tetracyano-p-quinodimethane
Tetracyanoquinodimethane

CAS
1518-16-7

Formula
C12H4N4

Molecular Weight
204.19

EINECS
216-174-8

RTECS
GU4850000

RTECS Class
Other

Beilstein/Gmelin
611604

EC Class
toxic

Physical and Chemical Properties

Appearance
Brown crystalline powder.

Solubility in water
Insoluble

Melting Point
287-289

First Aid Measures

Ingestion
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage
Keep containers tightly closed. Store in a cool, dry area away from incompatible substances.

Handling
Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification

Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated. May cause cyanosis, characterized by bluish skin.

Inhalation
May cause cyanosis, characterized by bluish-colored skin. May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. May cause irritation of the mucous membranes.

Skin
May cause skin irritation.

Eyes
May cause eye irritation.

Hazards
Contact with metals may evolve flammable hydrogen gas.

EC Risk Phrase
R 20/21/22

EC Safety Phrase
S 22 36/37

UN (DOT)
2811

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Fire Fighting Measures

Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.