In a heterogeneous mixture this is not the case. Chicken soup is a heterogeneous mixture. Copper (II) nitrate is therefore a compound. However, dissolved in water, it forms a mixture of water molecules and ions.
Spirulina is a type of blue-green algae widely available in health-food stores as a dietary supplement. With a mineral-rich content, spirulina is high in calcium, iron, magnesium, potassium and zinc.It contains varying levels of iodine also.Some manufacturers market spirulina for thyroid support due to its iodine content. If you're considering taking spirulina specifically to benefit from its iodine content, there are some safety concerns for you to consider.ome manufacturers market spirulina for thyroid support due to its iodine content. If you're considering taking spirulina specifically to benefit from its iodine content, there are some safety concerns for you to consider.
A serving of spirulina can contain from 16 micrograms, or about 10 percent of your daily need, up to over 15,000 micrograms, or over 1,000 percent of what you need each day. Too much iodine can cause a goiter and thyroid deficiencies, but an overdose is quite rare. The upper limit for iodine is 1,100 milligrams per day.