SODIUM NITRATE UN 1498
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Statutory Documents - IMO Publications and Documents - International Codes - IMSBC Code – International Maritime Solid Bulk Cargoes Code – Resolution MSC.268(85) - Appendix 1 – Individual Schedules of Solid Bulk Cargoes - SODIUM NITRATE UN 1498

SODIUM NITRATE UN 1498

Description

Colourless, transparent, odourless crystals. Hygroscopic and soluble in water.

Characteristics

Physical properties
Size Angle of repose Bulk density (kg/m3) Stowage factor (m3/t)
Not applicable Not applicable 508 to 719 1.39 to 1.97
Hazard classification
Class Subsidiary hazard(s) MHB Group
5.1 Not applicable   B

Hazard

Although non-combustible, mixtures with combustible material 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

Bilge wells shall be clean, dry and covered as appropriate, to prevent ingress of the cargo. 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

Sodium 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 may result in extensive scattering of the molten material. 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.

Parent topic: Appendix 1 – Individual Schedules of Solid Bulk Cargoes
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