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Safety Data Sheet EN

7,7,8,8-Tetracyanoquinodimethane

CAS 1518-16-7
EC 216-174-8

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01

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

F

Fisher Scientific UK

distributor

Bishop Meadow Road, Loughborough, Leicestershire LE11 5RG, United Kingdom

T

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

02

Hazard Identification

GHS classification, signal word, pictograms, and hazard statements

Classified danger

Hazard Classifications

Acute Tox. Cat. 3 H301
Acute Tox. Cat. 3 H311
Acute Tox. Cat. 3 H331

GHS Pictograms

GHS06 - Acute toxicity

GHS06

Hazard Statements

H301 + H311 + H331 Toxic if swallowed, in contact with skin or if inhaled

Precautionary Statements

P280 Wear protective gloves/protective clothing
P301 + P330 + P331 IF SWALLOWED: rinse mouth. Do NOT induce vomiting
P302 + P352 IF ON SKIN: Wash with plenty of soap and water
P304 + P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing
P311 Call a POISON CENTER or doctor/physician
P405 Store locked up

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03

Composition / Information on Ingredients

Chemical components, concentration ranges, and hazardous substance identification

Type substance
Chemical Name CAS Number Concentration Hazardous
Propanedinitrile, 2,2'-(2,5-cyclohexadiene-1,4-diylidene)bis- EC: 216-174-8 1518-16-7 --- Yes
04

First Aid Measures

Emergency procedures for chemical exposure incidents

Inhalation

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.

Skin contact

Wash off immediately with plenty of water for at least 15 minutes. Immediate medical attention is required.

Eye contact

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.

Ingestion

Do NOT induce vomiting. Call a physician or poison control center immediately.

Immediate Medical Attention

Immediate medical attention is required.

Medical Treatment

Treat symptomatically.

05

Firefighting Measures

Extinguishing media, specific hazards, and firefighter protection

Suitable media

Water spray. Carbon dioxide (CO2). Dry chemical. Chemical foam.

Unsuitable media

No information available.

Specific hazards

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.

06

Accidental Release Measures

Spill cleanup procedures, containment, and environmental protection

Emergency procedures

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.

Environmental

Should not be released into the environment.

Cleanup methods

Sweep up and shovel into suitable containers for disposal.

Related Products

Similar products with comparable safety profiles

07

Handling and Storage

Safe handling precautions, storage conditions, and workplace requirements

Handling

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.

Storage

Keep in a dry, cool and well-ventilated place. Keep container tightly closed.

Hygiene

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.

08

Exposure Controls / PPE

Occupational exposure limits, engineering controls, and protective equipment

Engineering

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

Hands

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.

Eyes

Goggles (European standard - EN 166)

Respiratory

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

Skin/Body

Wear appropriate protective gloves and clothing to prevent skin exposure.

Environmental

No information available.

09

Physical and Chemical Properties

Appearance, physical state, melting point, boiling point, and material characteristics

Density
No data available
Appearance
Amber
Relative Evaporation Rate
---
Molecular Weight
204.19
Freezing Point
---
Bulk Density
No data available
Solubility In Fat
---
Upper Explosive Limit
No data available
Crystallisation Point
---
Ph
No information available
Colour Intensity
---
Solidification Point
---
Vapor Density
Not applicable
Solubility
---
Lower Explosive Limit
No data available
Physical State
Powder Solid
Partition Coefficient
No information available
Decomposition Temperature
No data available
Relative Density
---
Boiling Point
No information available
Flash Point
No information available
Softening Point
No data available
Physical State Data
solid
Auto Ignition Temperature
Not applicable
Metal Corrosion
---
Kinematic Viscosity
---
Odor
Odorless
Melting Point
287 - 289 °C / 548.6 - 552.2 ºF
Form
---
Cloud Point
---
Colour
---
State Under Standard Conditions
---
Flammability
No information available
Vapor Pressure
No information available
Evaporation Rate
Not applicable - Solid
Dynamic Viscosity
---
Voc Content
---
Odor Threshold
No data available
Explosive Limits
---
Properties Status
---
Solubility In Water
Insoluble
10

Stability and Reactivity

Chemical stability, hazardous reactions, and incompatible materials

Stability

Stable under normal conditions.

Reactivity

None known, based on information available

Hazardous reactions

Hazardous polymerization does not occur. None under normal processing.

Avoid

Incompatible products.

Incompatible

Strong oxidizing agents. Strong acids. Strong bases. Strong reducing agents.

Decomposition

Nitrogen oxides (NOx). Carbon monoxide (CO). Carbon dioxide (CO2). Hydrogen cyanide (hydrocyanic acid).

12

Ecological Information

Environmental toxicity, biodegradation, and bioaccumulation data

The data for this section has not been processed yet.

13

Disposal Considerations

Waste treatment methods, disposal recommendations, and waste codes

The data for this section has not been processed yet.

14

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
15

Regulatory Information

Chemical regulations, safety assessments, and compliance status

The data for this section has not been processed yet.

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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.