Identification
Product identifiers, regulatory numbers, and supplier information
Product Information
- Product Name
- 7,7,8,8-Tetracyanoquinodimethane
- Product Code
- 169360000; 169360050; 169360100
- Synonyms
- TCNQ; 2,5-Cyclohexadiene-$71,$1.4,$1'-dimalononitrile
Regulatory Identifiers
- CAS Number
- 1518-16-7 Check regulations →
- EC Number
- 216-174-8 Check regulations →
Identified Uses
Laboratory chemicals.
Uses advised against
No Information available
Manufacturers & Suppliers
Fisher Scientific UK
distributor
Bishop Meadow Road, Loughborough, Leicestershire LE11 5RG, United Kingdom
Thermo Fisher Scientific
manufacturer
Janssen Pharmaceuticalaan 3a, 2440 Geel, Belgium
Emergency Contacts
Information US
001-800-227-6701
Information Europe
+32 14 57 52 11
Emergency Number US
001-201-796-7100
Emergency Number Europe
+32 14 57 52 99
CHEMTREC
001-800-424-9300
CHEMTREC
001-703-527-3887
Hazard Identification
GHS classification, signal word, pictograms, and hazard statements
Hazard Classifications
GHS Pictograms
GHS06
Hazard Statements
Precautionary Statements
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Composition / Information on Ingredients
Chemical components, concentration ranges, and hazardous substance identification
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| Propanedinitrile, 2,2'-(2,5-cyclohexadiene-1,4-diylidene)bis- EC: 216-174-8 | 1518-16-7 | --- | Yes |
First Aid Measures
Emergency procedures for chemical exposure incidents
Remove to fresh air. If not breathing, give artificial respiration. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Immediate medical attention is required.
Wash off immediately with plenty of water for at least 15 minutes. Immediate medical attention is required.
In the case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes.
Do NOT induce vomiting. Call a physician or poison control center immediately.
Immediate Medical Attention
Immediate medical attention is required.
Medical Treatment
Treat symptomatically.
Firefighting Measures
Extinguishing media, specific hazards, and firefighter protection
Water spray. Carbon dioxide (CO2). Dry chemical. Chemical foam.
No information available.
Thermal decomposition can lead to release of irritating gases and vapors.
Firefighter Protection
Wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear.
Accidental Release Measures
Spill cleanup procedures, containment, and environmental protection
Ensure adequate ventilation. Use personal protective equipment as required. Avoid dust formation. Keep people away from and upwind of spill/leak. Evacuate personnel to safe areas.
Should not be released into the environment.
Sweep up and shovel into suitable containers for disposal.
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Similar products with comparable safety profiles
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---
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Handling and Storage
Safe handling precautions, storage conditions, and workplace requirements
Wear personal protective equipment/face protection. Do not get in eyes, on skin, or on clothing. Avoid dust formation. Use only under a chemical fume hood. Do not breathe (dust, vapor, mist, gas). Do not ingest. If swallowed then seek immediate medical assistance.
Keep in a dry, cool and well-ventilated place. Keep container tightly closed.
Handle in accordance with good industrial hygiene and safety practice. Keep away from food, drink and animal feeding stuffs. Do not eat, drink or smoke when using this product. Remove and wash contaminated clothing and gloves, including the inside, before re-use. Wash hands before breaks and after work.
Exposure Controls / PPE
Occupational exposure limits, engineering controls, and protective equipment
Ensure adequate ventilation, especially in confined areas. Wherever possible, engineering control measures such as the isolation or enclosure of the process, the introduction of process or equipment changes to minimise release or contact, and the use of properly designed ventilation systems, should be adopted to control hazardous materials at source
Protective gloves. Glove material: Nitrile rubber, Neoprene, Natural rubber, PVC. Breakthrough time: See manufacturers recommendations. Glove thickness: -. EU standard: EN 374. Glove comments (minimum requirement): (minimum requirement). Inspect gloves before use. Please observe the instructions regarding permeability and breakthrough time which are provided by the supplier of the gloves. (Refer to manufacturer/supplier for information) Ensure gloves are suitable for the task: Chemical compatability, Dexterity, Operational conditions, User susceptibility, e.g. sensitisation effects, also take into consideration the specific local conditions under which the product is used, such as the danger of cuts, abrasion. Remove gloves with care avoiding skin contamination.
Goggles (European standard - EN 166)
When workers are facing concentrations above the exposure limit they must use appropriate certified respirators. To protect the wearer, respiratory protective equipment must be the correct fit and be used and maintained properly. Large scale/emergency use: Use a NIOSH/MSHA or European Standard EN 136 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced Recommended Filter type: Particulates filter conforming to EN 143. Small scale/Laboratory use: Use a NIOSH/MSHA or European Standard EN 149:2001 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced. Recommended half mask :- Particle filtering: EN149:2001 When RPE is used a face piece Fit Test should be conducted
Wear appropriate protective gloves and clothing to prevent skin exposure.
No information available.
Physical and Chemical Properties
Appearance, physical state, melting point, boiling point, and material characteristics
Stability and Reactivity
Chemical stability, hazardous reactions, and incompatible materials
Stable under normal conditions.
None known, based on information available
Hazardous polymerization does not occur. None under normal processing.
Incompatible products.
Strong oxidizing agents. Strong acids. Strong bases. Strong reducing agents.
Nitrogen oxides (NOx). Carbon monoxide (CO). Carbon dioxide (CO2). Hydrogen cyanide (hydrocyanic acid).
Ecological Information
Environmental toxicity, biodegradation, and bioaccumulation data
The data for this section has not been processed yet.
Disposal Considerations
Waste treatment methods, disposal recommendations, and waste codes
The data for this section has not been processed yet.
Transport Information
UN numbers, shipping names, transport classes, and regulatory requirements
- UN Number
- UN3439
- Shipping Name
- NITRILES, SOLID, TOXIC, N.O.S.
- Transport Class
- 6.1
- Packing Group
- III
Regulatory Information
Chemical regulations, safety assessments, and compliance status
The data for this section has not been processed yet.
Frequently Asked Questions
Common questions about safety, handling, and properties
What other names is 7,7,8,8-Tetracyanoquinodimethane known by?
7,7,8,8-Tetracyanoquinodimethane is also known as: TCNQ; 2,5-Cyclohexadiene-$71,$1.4,$1'-dimalononitrile
What is the hazard signal word for 7,7,8,8-Tetracyanoquinodimethane?
The signal word is danger.
What is the physical form of 7,7,8,8-Tetracyanoquinodimethane?
7,7,8,8-Tetracyanoquinodimethane is a powder solid appearing as amber . It has odorless odor.
What is 7,7,8,8-Tetracyanoquinodimethane used for?
Laboratory chemicals.
What are the hazard statements for 7,7,8,8-Tetracyanoquinodimethane?
This substance has 1 hazard statement:
- H301 + H311 + H331: Toxic if swallowed, in contact with skin or if inhaled
What is the melting point of 7,7,8,8-Tetracyanoquinodimethane?
The melting point is 287 - 289 °C / 548.6 - 552.2 ºF and the boiling point is No information available.