Boron——Sources of Exposure & Industrial Hygiene
Boron occurs naturally as sodium borate (Na2B4O7) and calcium borate. Borax (Na2B4O710H2O) has been used for many purposes for years. The earth’s crust contains approximately 0.0008% boron (Cotton et
Mar 6，2020 Inorganic chemistry
Bismuth——Exposure Sources&Risk Assessments
Bismuth is a relatively rare metal found in the earth’s crust at about the same level as silver. It is usually associated with copper, lead, tungsten, silver, and gold ores. Bismuth typically is a byp
Mar 5，2020 Inorganic chemistry
Exposure Sources & Medical Management of Beryllium
Beryllium (Be; CASRN 7440-41-7) is the lightest structural metal known to exist at this time. It is stronger than steel by 40%, its dimensional stability, favorable stiffness-to-weight ratio, high the
Mar 5，2020 Inorganic chemistry
Exposure Sources & Risk Assessments of Barium
Barium(symbolBa;CASRN7440-39-3)isadense,silver-white metal thatoxidizesrapidlyinair,assumingasilver-yellowcolor, when present in its elemental state. The TSCA inventory, established by the Toxic Subst
Mar 5，2020 Inorganic chemistry
Arsenic——Exposure Sources & Medical Management
Arsenic (As; CAS #7440-38-2) is a brittle solid with a metallic coloring that ranges from silver to gray. It is a naturally occurring element found in the earth’s crust,
Mar 5，2020 Inhibitors
Antimony——Exposure Sources & Industrial Hygiene
Antimony is a metal with synonyms, including antimony black; elemental antimony; antimony metal; metallic antimony; stibanylidynestibane; antimony ingot; antimony powder; antimony regulus; stibium and
Mar 5，2020 Inorganic chemistry
Aluminum——Exposure Sources & Industrial Hygiene
Occurring naturally in the soil, aluminum makes up 8% of theearth’s surface, although higher concentrations may be foundin the soil surrounding.
Mar 5，2020 Inorganic chemistryThe function of pempidine tartrate as a ganglion-blocking agent
Pempidine tartrate (PMP) is a white powder and acts as a ganglion-blocking agent to treat severe hypertension. Pempidine tartrate, like other highly active ganglion-blocking agents.
Mar 4，2020 Organic Solvents
The Application of Cetylpyridinium Chloride and Related Information
Cetylpyridinium chloride (CPC) is a white powder that is very soluble in water and alcohol. In this compound, the quaternary nitrogen atom is a member of an aromatic pyridinering.
Mar 4，2020 API
Synthesis methods of 3'-hydroxyacetophenone
3’-Hydroxyacetophenone is a chemical compound and it is a component of castoreum, the exudate from the castor sacs of the mature beaver [1]. It is used in the synthesis and preparation of chalcones an
Mar 4，2020 Organic reagents