Explanatory notes
… barium sulphate, etc.) and preservatives (particularly zinc salts, copper sulphate and phenol). (2) Agents to produce … 34.03 ). (6) Flame‑retardant preparations based on ammonium salts, compounds of boron, nitrogen, bromine or phosphorus … which are soluble in water, are usually based on metallic salts (e.g., aluminium, ammonium, chromium or iron sulphates …