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Styphnic acid

Styphnic acid structure

CAS No:
82-71-3
Formula:
C6H3N3O8
Chemical Name:
Styphnic acid
Synonyms:
1,3-Benzenediol,2,4,6-trinitro-;Styphnic acid;Resorcinol,2,4,6-trinitro-;2,4,6-Trinitro-1,3-benzenediol;2,4-Dihydroxy-1,3,5-trinitrobenzene;2,4,6-Trinitroresorcinol;3-Hydroxy-2,4,6-trinitrophenol;1,3-Dihydroxy-2,4,6-trinitrobenzene;NSC 36932
Categories:
Inorganic Chemistry > Coating Materials

Description

Yellow crystals; astringent taste. An initiating explosive. Forms addition compounds with many hydrocarbons; soluble in alcohol and ether; slightly soluble in water.

Trinitroresorcinol appears as a yellowish, crystalline solid. Used as a priming agent. Very sensitive to heat. Primary hazard is blast of an instantaneous explosion, not flying projectiles or fragments. Under prolonged exposure to fire or heat the containers may explode violently.|WetSolid

Styphnic acid Basic Attributes

Molecular Weight：

245.10300

Exact Mass：

245.10

EC Number：

201-436-6

UNII：

R4TJB1U00D

NSC Number：

36932

UN Number：

0219

DSSTox ID：

DTXSID7058880

HScode：

2908999090

Characteristics

PSA：

177.92000

XLogP3：

2.39200

Appearance：

Density：

1.83

Melting Point：

175.5 °C

Boiling Point：

292.6ºC at 760 mmHg

Refractive Index：

1.75

Water Solubility：

5.4g/L(25 ºC)

Air and Water Reactions：

No rapid reaction with air. No rapid reaction with water.

Reactive Group：

Nitro, Nitroso, Nitrate, and Nitrite Compounds, Organic

Reactivity Alerts：

Explosive

Reactivity Profile：

Aromatic nitro compounds, such as TRINITRORESORCINOL, range from slight to strong oxidizing agents. If mixed with reducing agents, including hydrides, sulfides and nitrides, they may begin a vigorous reaction that culminates in a detonation. The aromatic nitro compounds may explode in the presence of a base such as sodium hydroxide or potassium hydroxide even in the presence of water or organic solvents. The explosive tendencies of aromatic nitro compounds are increased by the presence of multiple nitro groups.

Safety Information

Hazard category：

1.1

Transport codes：

0219

hazard class code：

2-4-20/21/22

safety instructions：

Marks：

E,Xn

Precautionary statement(s)：

P210, P230, P240, P250, P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P312, P322, P330, P363, P370+P380, P372, P373, P401, P501

Hazard Statements：

H201

Fire Hazards：

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)|Flammable - 4th degree, Reactive - 3rd degree

GHS Classification：

|Danger|H201: Explosive; mass explosion hazard [Danger Explosives]|P210, P230, P240, P250, P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P312, P322, P330, P363, P370+P380, P372, P373, P401, and P501|H201 (13.33%): Explosive; mass explosion hazard [Danger Explosives]|Aggregated GHS information provided by 45 companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|P210, P230, P240, P250, P280, P370+P380, P372, P373, P401, and P501

Fire Fighting：

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: CARGO FIRE: DO NOT fight fire when fire reaches cargo! Cargo may EXPLODE! Stop all traffic and clear the area for at least 1600 meters (1 mile) in all directions and let burn. Do not move cargo or vehicle if cargo has been exposed to heat. TIRE OR VEHICLE FIRE: Use plenty of water - FLOOD it! If water is not available, use CO2, dry chemical or dirt. If possible, and WITHOUT RISK, use unmanned hose holders or monitor nozzles from maximum distance to prevent fire from spreading to cargo area. Pay special attention to tire fires as re-ignition may occur. Stand by, at a safe distance, with extinguisher ready for possible re-ignition. (ERG, 2016)

Isolation and Evacuation：

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: Isolate spill or leak area immediately for at least 500 meters (1/3 mile) in all directions. LARGE SPILL: Consider initial evacuation for 800 meters (1/2 mile) in all directions. FIRE: If rail car or trailer is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, initiate evacuation including emergency responders for 1600 meters (1 mile) in all directions. (ERG, 2016)

Nonfire Spill Response：

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. DO NOT OPERATE RADIO TRANSMITTERS WITHIN 100 METERS (330 FEET) OF ELECTRIC DETONATORS. DO NOT CLEAN-UP OR DISPOSE OF, EXCEPT UNDER SUPERVISION OF A SPECIALIST. (ERG, 2016)

Personal Protective Equipment：

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: Wear positive pressure self-contained breathing apparatus (SCBA). Structural firefighters' protective clothing will only provide limited protection. (ERG, 2016)

Drug Information

Health Hazards：

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: Fire may produce irritating, corrosive and/or toxic gases. (ERG, 2016)

First Aid：

Excerpt from ERG Guide 112 [Explosives* - Division 1.1, 1.2, 1.3 or 1.5]: Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. (ERG, 2016)

Styphnic acid Use and Manufacturing

Uses

2,4,6-Trinitroresorcinol has been used in the manufacture of explosives.

Intermediates

small arms ammunition

Production

100,000 - 500,000 lb

Manufacturing Info：

Explosives manufacturing|1,3-Benzenediol, 2,4,6-trinitro-: ACTIVE

Use Classification：

Fire Hazards -> Flammable - 4th degree, Reactive - 3rd degree

Computed Properties

Molecular Weight:245.10
XLogP3:1.1
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:8
Exact Mass:244.99201406
Monoisotopic Mass:244.99201406
Topological Polar Surface Area:178
Heavy Atom Count:17
Complexity:317
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes