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TETRYL
TETRYL
- CAS:
- 479-45-8
- MF:
- C7H5N5O8
- MW:
- 287.14
Properties
- Melting point:
- 130–132°C
- Boiling point:
- 429.46°C (rough estimate)
- Density
- 1.57
- vapor pressure
- <1 at 20 °C (NIOSH, 1997)
- refractive index
- 1.8000 (estimate)
- Flash point:
- 2℃
- storage temp.
- 2-8°C
- solubility
- Insoluble in water; soluble in ethanol, ether, benzene, acetic acid
- form
- crystals
- pka
- 12.66(at 25℃)
- color
- Yellow
- PH Range
- 11(colourless)-13(brown)
- Water Solubility
- 0.02 wt % at 20 °C (NIOSH, 1997)
- Henry's Law Constant
- <1.89 at 20 °C (approximate - calculated from water solubility and vapor pressure)
- Exposure limits
- (mg/m3): NIOSH REL: 1.5, IDLH 750; OSHA PEL: TWA 1.5; ACGIH TLV: TWA 1.5 (adopted).
- Major Application
- Explosives, paints, food storage
Safety Information
- Symbol(GHS)
GHS02,GHS07
- Signal word
- Danger
- Hazard statements
- H225-H302+H312+H332-H319
- Precautionary statements
- P210-P261-P302+P352+P312-P304+P340+P312-P337+P313-P403+P235
- Hazard Codes
- E,T,F,Xn
- Risk Statements
- 2-23/24/25-33-36/37/38-11-36-20/21/22-3
- Safety Statements
- 35-45-27-16-36/37-26
- RIDADR
- 0208
- OEB
- B
- OEL
- TWA: 1.5 mg/m3 [skin]
- WGK Germany
- 2
- HazardClass
- 1.1D
- IDLA
- 750 mg/m3
Use
Tetryl is used as an initiator for many less sensitive explosives. It is used as the booster in artillery ammunition. A combination of Tetryl with trinitrotoluene and a small amount of graphite is known as Tetrytol, an explosive used as the bursting charge in artillery ammunition. It is also used as an indicator.Tetryl is made by reacting 2,4-dinitrochlorobenzene with methylamine and nitrating the product with nitric acid and sulfuric acid.
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