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The pKa of KHP is 5.4, so its pH buffering range would be 4.4 to 6.4; however, due to the presence of the second acidic group that bears the potassium ion, the first pKa also contributes to the buffering range well below pH 4.0, which is why KHP is a good choice for use as a reference standard for pH 4.00.
Hazardous chemicals present physical and/or health threats to workers in clinical, industrial, and academic laboratories. Laboratory chemicals include cancer-causing agents (carcinogens), toxins (e.g., those affecting the liver, kidney, and nervous system), irritants, corrosives, sensitizers, as well as agents that act on the blood system or damage the lungs, skin, eyes, or mucous membranes.
This list may not reflect recent changes. Phthalates; P. Potassium hydrogen phthalate This page was last edited on 27 October 2021, at 23:47 (UTC). Text ...
Precautionary statements form part of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS). [1] They are intended to form a set of standardized phrases giving advice about the correct handling of chemical substances and mixtures, which can be translated into different languages.
Hazard pictograms form part of the international Globally Harmonized System of Classification and Labelling of Chemicals (GHS). Two sets of pictograms are included within the GHS: one for the labelling of containers and for workplace hazard warnings, and a second for use during the transport of dangerous goods.
The list was consolidated and republished in Directive 2001/59/EC, [1] where translations into other EU languages may be found. These risk phrases are used internationally, not just in Europe, and there is an ongoing effort towards complete international harmonization using the Globally Harmonized System of Classification and Labelling of ...
Image credits: Detroit Photograph Company "There was a two-color process invented around 1913 by Kodak that used two glass plates in contact with each other, one being red-orange and the other ...
[64] [70] It is on the List of Ingredients that are Prohibited for Use in Cosmetic Products. [70] Twenty of the 28 phthalate substances under national screening programs are considered possible risks to human health or the environment. [64] As of 2021, regulations to protect the environment against DEHP and B79P have not been enacted. [64]