osmium tetroxide toxicity

Wear goggles or a face shield. 2 0 obj Shell [1961]. It has an atomic symbol of Os.Osmium metal itself is probably not harmful to the human organism. Osmium tetroxide causes long-term toxicity to liver and kidneys. Department of Health & Human Services.The Centers for Disease Control and Prevention (CDC) cannot attest to the accuracy of a non-federal website.Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website.You will be subject to the destination website's privacy policy when you follow the link.CDC is not responsible for Section 508 compliance (accessibility) on other federal or private website. The toxicity of osmium tetroxide (osmic acid). Osmium tetroxide is a highly toxic powerful oxidizing agent with a strong odor.Osmium is flammable in the form of dust when exposed to heat or flame. New York, NY: Van Nostrand Reinhold, 1996., p. 2538 Hazardous Substances Data Bank (HSDB)

Flury F, Zernik F [1931].

Osmium and its compounds. Unpublished report. Osmium tetroxide is acutely toxic. Seek medical attention immediately.Avoid contact with skin or clothing. When heated to decomposition it emits toxic fumes of / osmium tetraoxide /. Neutralizing Osmium Tetroxide Before Disposal: In case of contact, remove contact lenses (if applicable), then rinse with running water for several minutes.

;|(�i~���{�"��I��E���_Dhq���jz�㋈�‹���_��=�ӷݼ�G����Cv���m\��8n�t�o��c�d�f�����v7����n ������~x����a�h��y�Q��q��� \�.�bt��;�kg��qx�W�8u���o�+�9������H�ft1� \��u�ܞy|R�W�)6}[��������}���,��a5N���wZ�*�_�4�i�P��AQ�'�����9�a��ֈ�����-}_�~m��;�Y�Zر98���kk\@�e�R���$k`R��и�R)��6�� �$�>����9����a��?���gn�����yXZ�O�?���F�?�;͇l�Զ�C��w�?�:1L�i�V�s̕��_)E����k��_l��Dy�+1����� U`���I'GB���i��W��1���s�w�ZG��ݻ�>z���w�X�[p���LI�͌��۱|s��+=B�^>0e:�ΆO�~����;�=1u T�6߯ӷ�Z�o3�OB$7�gB?��g?B����Lg������:����ù3{R����.��3/�'���Q3��4oφ'�_d���n���'�~O��������;����w:�[�ie�_`���q��P`p���x�w����:���y��6Gl�� 7u�ۖ�/w����}|kΧ��4�=�ݸ���קn���N�=8�g��M��^��a܉=�G{�f�U�_�χ�{.5� �*�xJ�nw�ո{Z�j|�Ӣq��N�ٸ�K?�^��Hg[��v'~�v����7�x���p��cO-+�q��������PF?��գ�8|ͧ �]�[�mk��~�`o�O\J�9�sxAv��a�3�3��q1�q#�ψy�Hv3���[).�H��H҇�d>'樑�0��"��?���Vྺ9#���9��A�[���q�(:~���:{R�bS�<1�'�]\�j�����~R���'�� ��� x�͝i��y����l�K��>��we %��������� Seek medical help at once.Do not eat, drink or smoke near this substance. In severe cases, respiratory tract irritation can progress to acute respiratory distress syndrome (ARDS). Within the platinum group, osmium has the highest melting point and the lowest vapor pressure. Rinse the contaminated part of the skin with soap and water.Do not get this material in your eyes. http://www.naturalpedia.com/osmium-toxicity-side-effects-diseases-and-environmental-impacts.html.Osmium is a lustrous, bluish-white, hard metal that can be brittle at high temperatures. 3. Osmium metal itself is probably not harmful to the human organism. �� C?Ͼ;��(��{6~*������e�8�fOJn��0�ҏ����������~��}V{-b���q��xl3���0�շ^P{q>.�����u��g�Z�6M��r|��� X��M�{V�v�a�{'�/�������?S �M��3. McLaughlin AIG, Milton R, Perry KMA [1946].

Exposure to osmium tetroxide vapor can damage the cornea of the eye. Toxic manifestations of osmium tetroxide. Because of the volatility and extreme toxicity of its oxide, osmium is rarely used in its pure state, but is instead often alloyed with other metals for high-wear applications. McLaughlin AIG, Milton R, Perry KMA [1946]. In case of accidental aspiration, leave the area of contamination and go to an open area with fresh air. Osmium tetroxide is acutely toxic, a severe irritant to the eyes and respiratory tract, and can cause irreversible eye damage or possible blindness. San Ramon, CA: Shell Chemical Co., p. 8.Centers for Disease Control and Prevention. Am Ind Hyg Assoc J,2. Br J Ind Med.5. Osmium tetroxide also causes long-term toxicity to liver and kidneys. … Toxic manifestations of osmium tetroxide. Osmium alloys such as osmiridium are very hard and, along with other platinum-group metals, are used in the tips of fountain pens, instrument pivots, and electrical contacts, as they can resist wear from frequent operation. They were also used for the tips of phonograph styli during the late 78 rpm and early "LP" and "45" record era, circa 1945 to 1955. The toxicity of osmium tetroxide (osmic acid). In case of swallowing any amount of osmium, give plenty of water to drink. Schädliche gase dämpfe, nebel, rauch- und staubarten. Flury F, Zernik F [1931]. 4. Refer to medical attention immediately.Refer to label instructions and workplace regulations regarding the proper handling of equipment before applying chemicals. Schädliche gase dämpfe, nebel, rauch- und staubarten. ACUTE: The acute toxicity of osmium tetroxide is high, and it is a severe irritant of the eyes and respiratory tract. J Ind Hyg.3. Osmium belongs to the platinum group metals (ruthenium, rhodium, indium, iridium, palladium, and platinum), which are often found together in nature.Osmium is one of the densest elements in the world. 1. Volumes 1-3. Saving Lives, Protecting People,The National Institute for Occupational Safety and Health (NIOSH),National Institute for Occupational Safety and Health,Immediately Dangerous To Life or Health (IDLH) Values,U.S. Osmium tetroxide reacts with double bonds to form cyclic osmate (VI) diesters (10), which can then be hydrolyzed to provide vicinal diols in good yields.1,86 If, however, sodium periodate is also present, the diol is cleaved, as in Scheme 2, and carbonyl compounds are the final products. Brunot FR [1933]. However, both osmium and its alloys are oxidized to volatile osmium tetroxide, which is toxic and can be strongly irritating to the skin, eyes and respiratory tract.

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