2,4,6-TRINITROBENZENESULFONIC ACID Property

Density 

1.14 g/mL at 20 °C

refractive index 

n20/D 1.431

Flash point:

58 °C

storage temp. 

2-8°C

pka

-3.05±0.50(Predicted)

BRN 

572358

InChIKey

NHJVRSWLHSJWIN-UHFFFAOYSA-N

CAS DataBase Reference

2508-19-2(CAS DataBase Reference)

EPA Substance Registry System

Benzenesulfonic acid, 2,4,6-trinitro- (2508-19-2)

Safety

Hazard Codes 

T,Xn,C,F

Risk Statements 

61-20/21-36-43-36/38-22-1-34-25-11

Safety Statements 

53-26-36/37-45-36/37/39-16-35

RIDADR 

UN 3265 8/PG 3

WGK Germany 

1

RTECS 

DA9138500

HazardClass 

1.1D

PackingGroup 

Ⅱ

Hazardous Substances Data

2508-19-2(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

H317May cause an allergic skin reaction

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P272Contaminated work clothing should not be allowed out of the workplace.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

2,4,6-TRINITROBENZENESULFONIC ACID Chemical Properties,Usage,Production

Definition

ChEBI: The arenesulfonic acid that is benzenesulfonic acid with three nitro substituents in the 2-, 4- and 6-positions.

General Description

A detonating explosive substance derived from an organic sulfonic acid. 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.

Air & Water Reactions

Soluble in water. Solution exhibits a strong acidic reaction.

Reactivity Profile

2,4,6-TRINITROBENZENESULFONIC ACID is a nitroaryl oxidizing acid. 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.

Health Hazard

Fire may produce irritating, corrosive and/or toxic gases.

Fire Hazard

MAY EXPLODE AND THROW FRAGMENTS 1600 meters (1 MILE) OR MORE IF FIRE REACHES CARGO.

Purification Methods

Recrystallise TNBS from 1M HCl, or a mixture of EtOH (50mL), H2O (30mL) and conc HCl (70mL) for 65g of acid, and dry it at 100o. The diethanolamine salt had m 182-183o [Golumbic J Org Chem 11 518 1946]. [Beilstein 11 III 161.]