479-45-8 structure, C7H5N5O8

N-methyl-N-picrylnitramine

CAS No.

479-45-8

Formula:

C7H5N5O8

Basic Info

2,4,6-Trinitrophenylmethylnitramine commonly referred to as tetryl (C7H5N5O8) is an explosive compound used to make detonators and explosive booster charges.
Tetryl is a nitramine booster explosive, though its use has been largely superseded by RDX. Tetryl is a sensitive secondary high explosive used as a booster, a small charge placed next to the detonator in order to propagate detonation into the main explosive charge.

Formula
C7H5N5O8
Molecular Weight
287.143
Exact Mass
287.014
LogP
3.1319
PSA
186.52
Synonyms

N-METHYL-N,2,4,6-TETRANITROANILINE

2,4,6-trinitrophenyl-N-methylnitramine

Tetryl

Picrylmethylnitramine

2,4,6-trinitrophenylmethylnitramine

2,4,6-Tetryl

Picrylnitromethylamine

N-Methyl-N-picrylnitramine

Nitramine

Tetril

N-Picryl-N-methylnitramine

N-2,4,6-tetranitro-N-methylaniline

N-methyl-N-(2,4,6-trinitrophenyl)nitramide

Benzenamine, N-methyl-N,2,4,6-tetranitro-

Tetralite

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Properties

Density
1.803g/cm3
Boiling Point
503.7ºC at 760mmHg
Melting Point
130ºC
Flash Point
258.4ºC
Refractive Index
1.686
Storage Condition
2-8ºC

Safety Info

Safety Statements
35-45-27-16
WGK Germany
3
Risk Statements
R2; R23/24/25; R33; R36/37/38; R11
Hazard Class
1.1
Hazard Codes

MSDS

SDS 1.0
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SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name N-methyl-N-picrylnitramine

1.2 Other means of identification

Product number -
Other names N-METHYL-N,2,4,6-TETRANITROANILINE

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

Company MOLBASE (Shanghai) Biotechnology Co., Ltd.
Address Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road,
Xuhui District, Shanghai, China
Telephone +86(21)64956998
Fax +86(21)54365166

1.5 Emergency phone number

Emergency phone number +86-400-6021-666
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

Explosives, Division 1.1

Acute toxicity - Oral, Category 3

Acute toxicity - Dermal, Category 3

Acute toxicity - Inhalation, Category 3

Specific target organ toxicity – repeated exposure, Category 2

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H201 Explosive; mass explosion hazard

H301 Toxic if swallowed

H311 Toxic in contact with skin

H331 Toxic if inhaled

H373 May cause damage to organs through prolonged or repeated exposure

Precautionary statement(s)
Prevention

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

P230 Keep wetted with …

P234 Keep only in original packaging.

P240 Ground and bond container and receiving equipment.

P250 Do not subject to grinding/shock/friction/….

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P264 Wash ... thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P271 Use only outdoors or in a well-ventilated area.

P260 Do not breathe dust/fume/gas/mist/vapours/spray.

Response

P370+P372+P380+P373 In case of fire: Explosion risk. Evacuate area. DO NOT fight fire when fire reaches explosives.

P301+P310 IF SWALLOWED: Immediately call a POISON CENTER/doctor/…

P321 Specific treatment (see ... on this label).

P330 Rinse mouth.

P302+P352 IF ON SKIN: Wash with plenty of water/...

P312 Call a POISON CENTER/doctor/…if you feel unwell.

P361+P364 Take off immediately all contaminated clothing and wash it before reuse.

P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P311 Call a POISON CENTER/doctor/…

P314 Get medical advice/attention if you feel unwell.

Storage

P401 Store in accordance with…

P405 Store locked up.

P403+P233 Store in a well-ventilated place. Keep container tightly closed.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
N-methyl-N-picrylnitramine N-methyl-N-picrylnitramine 479-45-8 none 100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.

In case of skin contact

Remove contaminated clothes. Rinse skin with plenty of water or shower. Wear protective gloves when administering first aid.

In case of eye contact

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

If swallowed

Refer for medical attention .

4.2 Most important symptoms/effects, acute and delayed

Exposure Routes: inhalation, skin absorption, ingestion, skin and/or eye contact Symptoms: Sensitization dermatitis, itch, erythema (skin redness); edema on nasal folds, cheeks, neck; keratitis (inflammation of the cornea); sneezing; anemia; cough, coryza; irritability; malaise (vague feeling of discomfort), headache, lassitude (weakness, exhaustion), insomnia; nausea, vomiting; liver, kidney damage Target Organs: Eyes, skin, respiratory system, central nervous system, liver, kidneys (NIOSH, 2016)

4.3 Indication of immediate medical attention and special treatment needed, if necessary

Basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 mL/kg up to 200 mL of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool. Administer activated charcoal ... . /Naphthalene and Related Compounds/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

Evacuation: If the material is on fire or involved in fire consider evacuation of one mile radius.

5.2 Specific hazards arising from the chemical

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: MAY EXPLODE AND THROW FRAGMENTS 1600 METERS (1 MILE) OR MORE IF FIRE REACHES CARGO. For information on "Compatibility Group" letters, refer to Glossary section. (ERG, 2016)

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Evacuate danger area! Consult an expert! Personal protection: P3 filter respirator for toxic particles.

6.3 Methods and materials for containment and cleaning up

If tetryl is spilled, the following steps should be taken: 1. Remove all ignition sources. 2. Ventilate area of spill. 3. Attempt to reclaim spilled material; however, do not sweep or burn unless this is supervised by explosives experts.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Fireproof. Separated from strong oxidants. Keep in the dark. Keep in a separate building protected from shock.Keep solution in the dark.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 1.5 mg/cu m. Skin designation.

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state Tetryl is a yellow crystalline solid high explosive. Toxic by ingestion and skin absorption. A skin irritant. Will explode if heated above 187.78°C. Used as a detonating explosive. The primary hazard is the blast of an instantaneous explosion and not flying projectiles and fragments.
Colour Colorless to yellow, crystalline solid
Odour Odorless.
Melting point/ freezing point 130ºC
Boiling point or initial boiling point and boiling range 503.7ºC at 760mmHg
Flammability Combustible Solid (Class A Explosive)Gives off irritating or toxic fumes (or gases) in a fire.
Lower and upper explosion limit / flammability limit no data available
Flash point 258.4ºC
Auto-ignition temperature no data available
Decomposition temperature no data available
pH no data available
Kinematic viscosity no data available
Solubility 0.02 % (NIOSH, 2016)
Partition coefficient n-octanol/water (log value) log Kow = 1.64 /Estimated/
Vapour pressure less than 1 mm Hg (NIOSH, 2016)
Density and/or relative density 1.803g/cm3
Relative vapour density no data available
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Is highly stable losing virtually no weight on prolonged storage at 80°C.

10.3 Possibility of hazardous reactions

Dangerous fire ... explosion riskDust explosion possible if in powder or granular form, mixed with air.During the measurement of the shock sensitivity of a mixture containing hydrazine, a drop of the hydrazine mixture fell on a tetryl explosive. The tetryl immediately burst into flames (ASESB 105).

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

Contact of tetryl with some oxidizable materials may cause fires & explosions.

10.6 Hazardous decomposition products

When heated to decomposition it emits toxic fumes of /nitrogen oxide/.

11.Toxicological information

Acute toxicity

  • Oral: no data available
  • Inhalation: no data available
  • Dermal: no data available

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

no data available

Reproductive toxicity

no data available

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

12.Ecological information

12.1 Toxicity

  • Toxicity to fish: no data available
  • Toxicity to daphnia and other aquatic invertebrates: no data available
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

Data from composting experiments suggest that biodegradation of tetryl may occur under some conditions(1). When tetryl-contaminated sediment was added to hay-horse feed or sewage sludge-wood chip compost, 90% of the tetryl was removed after 44 days(1). A first-order half-life of 1.2 weeks was calculated for tetryl in a manure-hay-sawdust compost(1). Tetryl was completely biodegraded in a laboratory reactor using a soil slurry amended with molasses over a 3 month operation period(2). Metabolites identified included trinitro-N-methylaniline, trinitrobenzeneamine, dinitrobenzenediamine, nitroaniline and aniline(2). In previous experiments using anoxic conditions and in the absence of co-substrates such as molasses, tetryl and trinitrotoluene (TNT) were not degraded(2).

12.3 Bioaccumulative potential

An estimated BCF of 4 was calculated for tetryl(SRC), using an estimated log Kow of 1.64(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).

12.4 Mobility in soil

Using a structure estimation method based on molecular connectivity indices(1), the Koc for tetryl can be estimated to be 2,100(SRC). According to a classification scheme(2), this estimated Koc value suggests that tetryl is expected to have slight mobility in soil(SRC). It was demonstrated that nitroaromatic compounds (including tetryl) adsorb strongly to clay minerals in aqueous suspensions, particularly when exchangeable cations in the clays include ammonium and potassium(3).

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods

Product

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

14.Transport information

14.1 UN Number

ADR/RID: UN0208 IMDG: UN0208 IATA: UN0208

14.2 UN Proper Shipping Name

ADR/RID: TRINITROPHENYLMETHYL- NITRAMINE (TETRYL)†
IMDG: TRINITROPHENYLMETHYL- NITRAMINE (TETRYL)†
IATA: TRINITROPHENYLMETHYL- NITRAMINE (TETRYL)†

14.3 Transport hazard class(es)

ADR/RID: 1.1 IMDG: 1.1 IATA: 1.1

14.4 Packing group, if applicable

ADR/RID: unknown IMDG: unknown IATA: unknown

14.5 Environmental hazards

ADR/RID: no IMDG: no IATA: no

14.6 Special precautions for user

no data available

14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

no data available

15.Regulatory information

15.1 Safety, health and environmental regulations specific for the product in question

Chemical name Common names and synonyms CAS number EC number
N-methyl-N-picrylnitramine N-methyl-N-picrylnitramine 479-45-8 none
European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
EC Inventory Listed.
United States Toxic Substances Control Act (TSCA) Inventory Listed.
China Catalog of Hazardous chemicals 2015 Listed.
New Zealand Inventory of Chemicals (NZIoC) Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS) Not Listed.
Vietnam National Chemical Inventory Not Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Not Listed.

16.Other information

Information on revision

Creation Date Aug 19, 2017
Revision Date Aug 19, 2017

Abbreviations and acronyms

  • CAS: Chemical Abstracts Service
  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • IMDG: International Maritime Dangerous Goods
  • IATA: International Air Transportation Association
  • TWA: Time Weighted Average
  • STEL: Short term exposure limit
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • EC50: Effective Concentration 50%

References

  • IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
  • HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
  • IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
  • CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
  • ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
  • Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
  • ECHA - European Chemicals Agency, website: https://echa.europa.eu/

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.

Spectrum

NMR Spectrum 1H NMR : Predict
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Analysis Methods

Kovats' RI, non-polar column, custom temperature program
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Column Shape
Capillary
Active Phase(℃)
Methyl Silicone
Retention index
2100.
Temperature Control
Method
custom temperature program
Comments
Column diameter: 0.25 mm; Program: not specified
Reference
Staples, E.J.Ultrahigh-speed chromatography and virtual chemical sensors for detecting explosives and chemical warfare agentsIEEE Sens. J.2005, 5, 4, 622-631.
Normal alkane RI, non-polar column, custom temperature program
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Column Shape
Capillary
Active Phase(℃)
DB-5
Retention index
2100.
Temperature Control
Method
custom temperature program
Comments
He; Program: not specified
Reference
Staples, E.J.Analysis of odors from explosives using an electronic nose2004, retrieved from http://www.estcal.com/TechPapers/Odor
Normal alkane RI, non-polar column, custom temperature program
expand collapse
Column Shape
Capillary
Active Phase(℃)
DB-5
Retention index
2113.
Temperature Control
Method
custom temperature program
Comments
He; Program: not specified
Reference
Staples, E.J.Analysis of odors from explosives using an electronic nose2004, retrieved from http://www.estcal.com/TechPapers/Odor
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