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Linseed oil
Linseed oil is a yellowish drying oil derived from the dried ripe
seeds of the flax plant (Linum usitatissimum, Linaceae). It is obtained
by pressing, followed by an optional stage of solvent extraction.
Cold-pressed oil obtained without solvent extraction is marketed
as flaxseed oil. It is suitable for human consumption (though not
recommended for cooking) and is used as a nutritional supplement
which is high in omega-3 fatty acids, especially alpha linolenic
acid, similar to those found in fish such as salmon.
Boiled linseed oil was used a paint binder or as a wood finish
on its own. Heating the oil makes it polymerize or oxidise more
readily. However, today, metallic dryers are used instead of heat.
The use of metallic dryers makes boiled linseed oil inedible.
Nutrient content of flax seed oil
Approximate per 100 grams (3½ ounces)
Food energy 450 calories (1,880 kilojoules)
Fat 41.0 grams
Total dietary fibre 28.0 grams
Protein 20.0 grams
Its uses include:
Animal feeds
Putty
Sealants
Caulking compounds
Brake linings
Linoleum
Textiles
Foundry products
Leather treatment
Polishes, varnishes and oil paints
Animal care products
Wood preservation
Synthetic resins
Oil painting medium
The linoleic acid in linseed oil is used as a dietary supplement.
Linseed oil has a special cultural place in cricket playing countries
as treatment for the raw willow wood used to make cricket bats.
Safety Note: Rags soaked in linseed oil can self-ignite if stored
in a confined space. They should be washed with water and disposed
of carefully.
The paintings are the excellent portrayal of the events and scenes
that we see around us. The painters are the best cameras of the
world. They reproduce many different types of pictures. They even
draw imaginary pictures that do not exist in this world. We tend
to use both thinned oil paints and dense oil paints. Masterpieces
can be dyed more than once, but each time it may be different from
the existing paintings.
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