Datasheet

Chips, fines, dust and molten metal are considerably more reactive with the following:
• Strong oxidizers: Violent reaction with considerable heat generation. Can react explosively with
nitrates (e.g., ammonium nitrate and fertilizers containing nitrate) when heated or molten.
• Acids and alkalis: Reacts to generate flammable/explosive hydrogen gas. Generation rate is
greatly increased with smaller particles (e.g., fines and dusts).
• Halogenated compounds: Many halogenated hydrocarbons, including halogenated fire
extinguishing agents, can react violently with finely divided or molten aluminium.
• Iron oxide (rust) and other metal oxides (e.g., copper and lead oxides): A violent thermite reaction
generating considerable heat can occur. Reaction with aluminium fines and dusts requires only
very weak ignition sources for initiation. Molten aluminium can react violently with iron oxide
without external ignition source.
• Iron powder and water: Explosive reaction forming hydrogen gas when heated above 800°C
(1470°F).
Thermite explosions have been reported when aluminium alloys were melted in furnaces used for
alloying with lead, bismuth or other metals with low melting temperatures. These metals, when
added as high purity ingots, can seep through cracks in furnace liners and become oxidized.
During subsequent melts in the furnace, molten aluminium can contact these metal oxides
resulting in a thermite explosion.
10.5. Incompatible materials
No hazardous decomposition products are known.
10.6. Hazardous
decomposition products
SECTION 11: Toxicological information
Health effects associated with ingredients
Aluminium dust/fines and fumes: Low health risk by inhalation. Generally considered to be biologically inert (milling, cutting,
grinding).
Silicon (inert dusts): Chronic overexposures: Can cause chronic bronchitis and narrowing of airways.
Copper dust/mists: Can cause irritation of the eyes, mucous membranes, skin, and respiratory tract. Chronic overexposures:
Can cause reduction in the number of red blood cells (anemia), skin abnormalities (pigmentation changes) and hair discoloration.
Nickel dust and fume: Can cause irritation of eyes, skin and respiratory tract. Eye contact: Can cause inflammation of the eyes
and eyelids (conjunctivitis). Skin contact: Can cause sensitization and allergic contact dermatitis. Chronic overexposures: Can
cause perforation of the nasal septum, inflammation of the nasal passages (sinusitis), respiratory sensitization, asthma and
scarring of the lungs (pulmonary fibrosis). Nickel alloys: IARC/NTP: Reviewed and not recommended for listing by NTP. Listed
as possibly carcinogenic to humans by IARC (Group 2B).
Chromium dust and fumes: Can cause irritation of eye, skin and respiratory tract. Metallic chromium and Trivalent chromium: Not
classifiable as to their carcinogenicity to humans by IARC.
Lead dust or fume: Can cause irritation of eyes and upper respiratory tract. Acute overexposures: Can cause nausea and muscle
cramps. Chronic overexposures: Can cause weakness in the extremities (peripheral neuropathy), abdominal cramps,
gastrointestinal tract effects, kidney damage, liver damage, central nervous system damage, damage to the blood forming
organs, blood cell damage and reproductive harm. Can cause reduced fertility and fetal toxicity in pregnant women. IARC/NTP:
Listed as "reasonably anticipated to be a human carcinogen" by the NTP. Listed as possibly carcinogenic to humans by IARC
(Group 2B).
Some products are supplied with an oil coating or have residual oil from the manufacturing process. Oil: Can cause irritation of
skin. Skin contact (prolonged or repeated): Can cause dermatitis.
Health effects associated with compounds formed during processing
The following could be expected if welded, remelted or otherwise processed at elevated temperatures:
Alumina (aluminium oxide): Low health risk by inhalation. Generally considered to be biologically inert.
Silica, amorphous: Acute overexposures: Can cause dryness of eyes, nose and upper respiratory tract.
Manganese oxide fumes: Can cause irritation of the eyes, skin, and respiratory tract. Acute overexposures: Can cause metal
fume fever (nausea, fever, chills, shortness of breath and malaise).
Copper fume: Can cause irritation of the eyes, mucous membranes, and respiratory tract. Acute overexposures: Can cause
metal fume fever (nausea, fever, chills, shortness of breath and malaise).
Iron oxide: Chronic overexposures: Can cause benign lung disease (siderosis). Ingestion: Can cause irritation of gastrointestinal
tract, bleeding, changes in the pH of the body fluids (metabolic acidosis) and liver damage.
Zinc oxide fumes: Can cause irritation of upper respiratory tract. Acute overexposures: Can cause metal fume fever (nausea,
fever, chills, shortness of breath and malaise).
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Material name: WROUGHT ALUMINIUM PRODUCTS, 6xxx SERIES ALLOYS
668 Version #: 13 Revision date: 24-August-2017 Issue date: 09-March-2017
ARCONIC SDS GBR 2016