Two distinct products exist under adjacent names: iodized salt (trace iodine) and anti-caking variants; confirm iodine content and the anti-caking agent (e.g. sodium ferrocyanide) declared per your market's food rules.

Because the substance is identical either way, grade and documentation do the real separating: pharmacopoeial vs food vs technical grade, assay basis, impurity limits (heavy metals, residual solvents, water), container size and, for stereochemical names, an optical-purity clause.

Are Iodized and Iodized salt chemically identical?

Yes. The short form is the adjective; the full form names the product.

Which spelling is correct?

Both are accepted, but in different domains: One half is simply shorthand for the other; the expanded form is what should appear in specifications.

What should a purchase order say?

Name plus CAS plus grade plus quantity. For Iodized Salt the CAS alone removes every ambiguity created by spelling, shorthand or stereochemistry prefixes.

Is the short form ever a different product?

Yes — and that is precisely why the specification, not the name, decides what ships. One half is simply shorthand for the other; the expanded form is what should appear in specifications.

Editorial note

This article clarifies naming equivalence for procurement and documentation use. It is not legal or regulatory advice; the controlled source for any label is the current monograph, CAS index entry and applicable market regulations.