Termed gamma-boron, their new form of boron is made up of two forms of boron clusters - B 2pairs and B 12 icosahedra - arranged in a sodium chloride type structure. Now Artem Oganov from Stony Brook University, New York, US, and colleagues have made a new structure to add to the list. There are at least 16 known polymorphs of boron, but only three of these are thought to correspond to the pure element. SECTION 14.Scientists have characterised a new form of elemental boron - a notoriously hard element to synthesise in a pure form - and found that ionic bonding helps hold the structure together. Smaller quantities can be disposed of with household waste.Ĭonsult official regulations to ensure proper disposal.ĭisposal must be made according to official regulations.
OSHA-Ca (Occupational Safety & Health Administration)ĭo not allow material to be released to the
The substance is not subject to classification. To the best of our knowledge the acute and chronic toxicity of this substance is not fully known. The Registry of Toxic Effects of Chemical Substances (RTECS) contains multiple dose toxicity data for this substance. Specific target organ system toxicity - single exposure: Specific target organ system toxicity - repeated exposure: LD/LC50 values that are relevant for classification:ĮPA-I: Data are inadequate for an assessment of human carcinogenic potential. The Registry of Toxic Effects of Chemical Substances (RTECS) contains acute toxicity data for components in this product. Thermal decomposition / conditions to be avoided: Stable under recommended storage conditions. Product does not present an explosion hazard. Information on basic physical and chemical properties Penetration time of glove material (in minutes) Recommended filter device for short term use: In case of intensive or longer exposure use respiratory protective device that is independent of circulating air. In case of brief exposure or low pollution use respiratory filter device. Not necessary if room is well-ventilated. Maintain an ergonomically appropriate working environment. The exposure limits that were valid when the MSDS was created were used.įollow typical protective and hygienic practices for handling chemicals. EXPOSURE CONTROLS/PERSONAL PROTECTIONĪdditional information about design of technical systems:Ĭomponents with limit values that require monitoring at the workplace: Information about storage in one common storage facility:įurther information about storage conditions: Requirements to be met by storerooms and receptacles: Information about protection against explosions and fires:Ĭonditions for safe storage, including any incompatibilities Store in cool, dry place in tightly closed containers. See Section 8 for information on personal protection equipment. See Section 7 for information on safe handling Methods and materials for containment and cleanup: Personal precautions, protective equipment and emergency procedures If this product is involved in a fire, the following can be released: Special hazards arising from the substance or mixture Use fire-fighting measures that suit the surrounding fire. Indication of any immediate medical attention and special treatment needed Most important symptoms and effects, both acute and delayed Rinse opened eye for several minutes under running water. Generally the product does not irritate the skin. Wash with water and soap and rinse thoroughly. Seek medical treatment in case of complaints. (Hazardous Materials Identification System) Labelling according to Regulation (EC) No 1272/2008 The substance is not classified as hazardous to health or the environment according to the CLP regulation. Relevant identified uses of the substance: Scientific research and developmentĬlassification of the substance or mixtureĬlassification according to Regulation (EC) No 1272/2008 Product Number: All applicable American Elements product codes, e.g.
0 kommentar(er)
