E173

This section is about
E-numbers (Colours).

To read about other E-numbers use the links on the left.

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E173 is a natural metal food additive approved by the European Union (EU). It is sometimes used as a colouring agent in food and drink products.

The common name for E173 is aluminium, i.e. the chemical element aluminium.

E173 is a silver / grey metal that tends to be used as a metallic surface coating. Aluminium is also used in many other food-related applications, such as for food-wrap foils, and even in part of water purification processes (incl. e.g. to assist in removing contaminants and other harmful micro-organisms from a raw water source.). To produce E173 commercially, bauxite is extracted and purified and electrolysis to take place in molten cryolite.

Although aluminium can form part of a healthy diet, large amounts or accumulations have been linked to skeletal deformations, Alzheimer's Disease (see also Alzheimers in the news), and osteoporosis (see also osteoporosis in the news). It is not yet clear whether or not aluminium accumulation in the brain is a cause or the result of Alzheimer's. Aluminium is generally considered harmful if inhaled or ingested on its own.

Examples of food and drink products that sometimes include E173:

• tablets
• sugar-coated flour confectionery
• cake decorations

Note⁽¹⁾ that the list of Food Additives (E Numbers) included in this section and listed on the left is subject to change as chemicals are added or removed by the EU Regulatory Authorities. IvyRose cannot guarantee that this list is complete.

Note⁽²⁾ These numbers are also used in Australia and New Zealand but without the E.

Government approvals and other regulatory details are subject to change.

This entry was added in good faith in July 2008.
For current details check with relevant authorities.