![]() Either way, the resulting species are free radicals, which means they are very reactive, and this makes H 2O 2 a very powerful oxidising agent. The single bond between the two oxygen atoms is weak, so that H 2O 2 readily fragments into either H and HO 2 or two OHs. The main difference between hydrogen peroxide and water, however, is in its chemical behaviour. Its physical properties are very similar to those of water, except that it is 40% denser. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.Hydrogen Peroxide (H 2O 2) is a colourless liquid that resembles water in many respects. The published material is being distributed without warranty of any kind, either expressed or implied. Other UN numbers: 2014 (hydrogen peroxide, aqueous solution 20-60%): hazard class 5.1, subsidiary hazard 8, pack group II 2984 (hydrogen peroxide, aqueous solution 8-20%): hazard class 5.1, pack group III.Īll rights reserved. Rinse contaminated clothing with plenty of water because of fire hazard. ![]() The substance is toxic to aquatic organisms. MAK: 0.71 mg/m 3, 0.5 ppm peak limitation category: I(1) carcinogen category: 4 pregnancy risk group: C TLV: 1 ppm as TWA A3 (confirmed animal carcinogen with unknown relevance to humans). The substance may have effects on the hair. Lungs may be affected by repeated or prolongated exposure. Repeated or chronic inhalation of the vapour may cause chronic inflammation of the upper respiratory tract. Exposure to this substance may produce oxygen bubbles (embolism) in the blood, resulting in shock.Ī harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20☌.Įffects of long-term or repeated exposure Ingestion may cause strong foam formation with risk of asphyxiation and aspiration. The vapour is severely irritating to the respiratory tract. The substance is corrosive to the eyes, skin and respiratory tract. The substance can be absorbed into the body by inhalation of its vapour, by ingestion and through the skin. Octanol/water partition coefficient as log Pow: -1.36 Relative density of the vapour/air-mixture at 20☌ (air = 1): 1.0 Attacks many organic substances such as textiles and paper. This generates fire and explosion hazard particularly in the presence of metals. It reacts violently with combustible and reducing materials. With the financial assistance of the European Commission.ĭecomposes under the influence of light. Prepared by an international group of experts on behalf of ILO and WHO, Store in an area without drain or sewer access. UN Hazard Class: 5.1 UN Subsidiary Risks: 8 UN Pack Group: I May cause damage to upper respiratory tract and lungs through prolonged or repeated exposure May cause fire or explosion strong oxidizer Store and dispose of according to local regulations. Do NOT absorb in saw-dust or other combustible absorbents. Absorb liquid in sand or inert absorbent. Do NOT let this chemical enter the environment. Refer immediately for medical attention.Ĭonsult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Burns.įirst rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.Īspiration hazard! Sore throat. Skin burns.įirst rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Use ventilation, local exhaust or breathing protection.įresh air, rest. PREVENT GENERATION OF MISTS! AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR! In case of fire: keep drums, etc., cool by spraying with water. In case of fire in the surroundings, use appropriate extinguishing media. NO contact with incompatible materials: See Chemical Dangers Risk of fire and explosion on contact with heat or metal catalysts. The substance may ignite combustible materials. HYDROGEN PEROXIDE (>60% SOLUTION IN WATER)
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