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Old 07-13-2009, 12:05 PM   #28 (permalink)
burnchassis
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if "suspended in fine dust form,then ignited in perfect conditions.
You can cut Titanium with a cutting wheel,or grinder,drill it with a drill or weld it without problems.
Shave it up into dust,and toss it into an enclosed environment then ignite it ,it may ,OR may not go boom.
Don't breathe the dust or fumes from it,or get them in your eye.
Then I found this:

Titanium and Titanium Alloys
Flash Point: None reported
Autoignition Temperature: None reported for alloy but metal powders can burn and form explosive mixtures in air.
Some components of the alloy do have autoignition temperatures: chromium dust cloud 1076°F (580°C), dust layer
752°F (400°C); Aluminum dust cloud 1202°F (650°C), dust layer 1400°F (760°C), and titanium dust cloud 896 °F
(480 °C).
Lower Explosive Limit: None reported for alloy but some component powders do have reported limits – Chromium
0.23 oz/ft3, Aluminum >0.04 oz/ft3.
Upper Explosive Limit: None reported.
Extinguishing Media: If metal is reduced to a powder form, use dry sand, dry graphite or other Class “D” fire
extinguishing powder.
Unusual Fire or Explosion Hazards: Fine dust suspended in the air may ignite or explode. Titanium is ignitable and
may explode if in a finely divided form (i.e. cutting and/or grinding).
Fire Fighting: Wear a self-contained breathing apparatus (SCBA) with full facepiece operated in the pressure
demand or positive pressure mode. Do not allow runoff from fire fighting to enter roadways or sewers. Material may
dry out and present additional fire/explosion hazards.
In solid form this material poses no special problems. If this material is in powder or dust form, wear
appropriate protective clothing and respiratory protection for the situation. Collect spilled material utilizing a vacuum
system equipped with a high efficiency particulate air filtration system and place in sealed containers for reclamation
or disposal. Use clean up measures that minimize dust. Avoid inhalation of dust. Remove sources of heat or ignition
as dust clouds can burn or explode. Recycle or dispose of material according to local, state, and federal regulations.
Handling: Use local exhaust ventilation if cutting or welding. If workers are exposed to dust (i.e. cutting, etc.)
provide appropriate respiratory, eye, and skin protection. An eyewash station should be readily available to areas of
use.
Storage: Protect containers from physical damage. Keep cool, dry and isolated from acids, caustics, halogenated
compounds, and oxidizers. Fine metal powder should be kept away from open flames and sources of ignition.
Engineering Control and Ventilation: If welding or cutting (causing dust) provide local exhaust with a minimum
face velocity of 60 fpm.
Respiratory Protection: Wear NIOSH/MSHA approved respirators if there is a potential for exposure to dust above
exposure limits for individual components of the powder and the additive effects of the components. Use NIOSH
respiratory protection guidelines to select proper respiratory protection.
Eye Protection: Wear safety glasses with side shields and /or goggles as necessary to prevent dust from entering
eyes.

Last edited by burnchassis; 07-13-2009 at 04:10 PM.
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