Silicomanganese (low Carbon)
SILICOMANGANESE (low carbon)
Schedule source MSC.539(107), Annex 9, Appendix 1, IMSBC Code Amendment 07-23 · pages 411, 412
Description
A ferroalloy comprising principally manganese and silicon, mainly used as a deoxidizer and alloying element in the steel-making process. Particle or lump of blackish brown, silver white metal.
Hazard
This cargo is non-combustible and has a low fire risk. However, in contact with water, this cargo may evolve hydrogen, a flammable gas that may form explosive mixtures with air and may, under similar conditions, produce phosphine and arsine which are highly toxic gases. This cargo is liable to reduce oxygen content in a cargo space. May cause long-term health effects.
Stowage and Segregation
Segregation as required for class 4.3 materials. “Separated from” foodstuffs and all class 8 liquids.
Hold Cleanliness
Clean and dry as relevant to the hazards of the cargo.
Weather Precautions
This cargo shall be kept as dry as practicable before loading, during loading and during the voyage. This cargo shall not be loaded during precipitation. During loading of this cargo, all non-working hatches of the cargo spaces to 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 IMSBC Code. As the density of the cargo is extremely high, the tank top may be overstressed unless the cargo is evenly spread across the tank top to equalize the weight distribution. Due consideration shall be given to ensure that the tank top is not overstressed during the voyage and during loading by a pile of the cargo.
Precautions
The manufacturer or the shipper shall provide the master with a certificate stating that, after manufacture, the cargo was stored under cover, but exposed to open air for not less than 3 days prior to shipment. Smoking shall not be allowed on deck and in the cargo spaces and “NO SMOKING” signs shall be displayed on deck whenever this cargo is on board. Electrical fittings and cables shall be in good condition and properly safeguarded against short circuits and sparking. Where a bulkhead is required to be suitable for segregation purposes, cable and conduit penetrations of the decks and bulkheads shall be sealed against the passage of gas and vapour. Whenever practicable, ventilation
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