| http://www.w3.org/ns/prov#value | - The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.Rest and medical observation are therefore essential.NEVER pour water into this substance; when dissolving or diluting always add it slowly to the water.Other UN numbers: UN1831 Sulfuric acid, fuming, hazard class 8, subsidiary hazard 6.1, pack group I; UN1832 Sulfuric
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