Standards are materials containing a known concentration of a substance. They provide a reference to determine unknown concentrations or to calibrate analytical instruments.
In chemistry, a primary standard is a consistent, readily eligible substance. Some features of a primary standard are;. Fig: Common features of a primary standard. A primary standard cannot decompose in, absorb or otherwise react with any components of air. Many iron II -based compounds, for example, react with oxygen in the air to become iron III compounds.
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EMAIL: customerservice riccachemical. Customer Support. Technical Support. About Us. ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment. ECHA has no public registered data indicating whether or into which articles the substance might have been processed.
This substance is used in the following products: laboratory chemicals and pH regulators and water treatment products. This substance is used in the following areas: health services and scientific research and development. Other release to the environment of this substance is likely to occur from: indoor use e. This substance is used in the following products: laboratory chemicals.
Release to the environment of this substance can occur from industrial use: formulation of mixtures. This substance is used in the following areas: scientific research and development and health services. This substance is used for the manufacture of: chemicals.
Release to the environment of this substance can occur from industrial use: as an intermediate step in further manufacturing of another substance use of intermediates , as processing aid and in processing aids at industrial sites. Release to the environment of this substance can occur from industrial use: manufacturing of the substance. This section provides links to the list of precautions precautionary statements and to the guidance on safe use, if they have been provided in REACH registration dossiers.
Please note: Precautionary measures and guidance on safe use concern the use and handling of the specific substance as such, not of the presence of the substance in other articles or mixtures.
Information on precautionary measures and the safe use is submitted by the registrant of a substance and the registrant is solely responsible for its accuracy and completeness. InfoCards are generated automatically based on the data available at the time of generation. The quality and correctness of the information submitted to ECHA remains the responsibility of the data submitter.
The type of uses and classifications may vary between different submissions to ECHA and for a full understanding it is recommended to consult the source data. Information on applicable regulatory frameworks is also automatically generated and may not be complete or up to date. It is the responsibility of the substance manufacturers and importers to consult official publications, e.
InfoCards are updated when new information is available. The date of the last update corresponds to the publication date of the InfoCard and not necessarily to the date in which the update occurred in the source data. Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities directly, or inheriting the regulatory context of a parent substance :.
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Close Find out more on how we use cookies. EU Privacy Disclaimer. This website uses cookies to ensure you get the best experience on our websites. Read More OK. Substance Information. Substance Infocard See a problem or have feedback? Print infocard Open Brief Profile. Molecular formula The molecular formula identifies each type of element by its chemical symbol and identifies the number of atoms of each element found in one discrete molecule of the substance.
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