Description
Transparent, colourless or white crystalline powder or crystals.
Hygroscopic.
Characteristics
| Physical properties
|
| Size
|
Angle of
repose
|
Bulk density
(kg/m3)
|
Stowage factor
(m3/t)
|
| Crystals or powder
|
30o to 31o
|
1,136
|
0.88
|
| Hazard classification
|
| Class
|
Subsidiary
hazard(s)
|
MHB
|
Group
|
| 5.1
|
Not
applicable
|
|
B
|
Hazard
Oxidizes when wet. Mixtures with combustible materials are readily ignited
and may burn fiercely.
This cargo is hygroscopic and will cake if wet.
Stowage and segregation
"Separated from" foodstuffs.
Hold cleanliness
Clean and dry as relevant to the hazards of the cargo.
Weather precautions
This cargo shall be kept as dry as practicable. This cargo shall not be
handled during precipitation. During handling of this cargo, all non-working hatches of
the cargo spaces into which this cargo is loaded, or to be loaded, shall be closed.
Loading
Trim in accordance with the relevant provisions required under sections 4
and 5 of this Code.
Precautions
Due consideration shall be given to prevent contact of the cargo and
combustible materials. The master and officers are to note that the ship's fixed gas
fire-fighting installation will be ineffective on fires involving this cargo and that
applying copious amounts of water may be necessary.
Ventilation
The cargo spaces carrying this cargo shall not be ventilated during
voyage.
Carriage
No special requirements.
Discharge
Potassium nitrate is hygroscopic and may cake in overhangs, impairing safety
during discharge. If this cargo has hardened, it shall be trimmed to avoid the formation
of overhangs, as necessary.
Clean-up
No special requirements.
Emergency procedures
| Special emergency equipment to
be carried
|
| Protective clothing (gloves,
boots, coveralls and headgear).
Self-contained breathing
apparatus.
Spray nozzles.
|
| Emergency
procedures
|
| Wear protective clothing and
self-contained breathing apparatus.
|
| Emergency action in the event
of fire
|
| Use copious quantities of water,
which is best applied in the form of a spray to avoid disturbing the surface
of the material.
The material may fuse or melt, in which
condition application of water may result in extensive scattering of the
molten materials.
Exclusion of air or the use of
CO2 will not control the fire.
Due
consideration should be given to the effect on the stability of the ship
due to accumulated water.
|
| Medical first aid
|
| Refer to the Medical First Aid
Guide (MFAG), as amended.
|
Remarks
This material is non-combustible unless contaminated.