What Is Pigment Green 7?
Pigment Green 7 (also known as Pigment Green 36, C.I. No. 74250, and Solvent Green 2) a synthetic green organic pigment that was first synthesized in the 1930s by chemists trying to find new green pigments for paint. This green pigment is considered non-toxic and environmentally friendly, so it used frequently in many different industries from textiles to plastics to rubber products and more. Learn more about Pigment below!
Pigment Green 7 Manufacturing Process
There two types of pigment green 7 manufacturing processes, calcination and reduction. Calcination makes pigments from chromium trioxide or manganese dioxide. Reduction a reaction between chromium metal and nitrogenous hydroxide, resulting in a solid product that is then washed with water to remove excess chromium ions that could cause corrosion. Both methods result in very little waste because all chemicals can be recycled into new products. But if you looking for efficiency, the reduction slightly more efficient since its final product better purity than what results from calcination.
Chemical Composition Of Pigment Green 7
To fully understand Pigment Green 7 and its uses, you have to be aware of what elements are used to make it. The pigment is known for being composed of Prussian blue and yellow prussiate of potash. It’s not as toxic as some would think; however, you should still take precautions when working with it. Wear a breathing mask during production, as well as gloves and protective clothing. This can help protect your skin from absorbing potentially harmful particles found in pigments such as PG7. Inhalation of these particles can have negative impacts on your respiratory system; therefore, it’s important to protect yourself when working with paints containing PG7 The pigment is commonly used to make green paint because it closely matches shades of emerald, forest and pine colours.
There are no substitutes for pigment green , so if you want coloured paint without worrying about colour change due to fading or sunlight exposure, then pigment green a great option. However, many artists also use pigment red 48 instead because there other benefits associated with it over PG7 (like nontoxicity). Therefore, if possible try experimenting with both before making your final decision. If you choose PG7 do keep in mind that toxicity issues will arise if you use too much or mix it improperly with other pigments or mediums. Be sure that everything completely dried before handling them again; otherwise, the sensitivity will occur.
Applications Of Pigment Green 7
In artistic media, Pigment Green 7 Manufacturer is used as a fluorescent under-paint. The pigment is coated onto glass and then exposed to ultraviolet light during painting, making it easy to see where more green has been applied. In histology, it is used as a counterstain for haematoxylin and eosin-stained sections on paraffin and frozen sections on Tissue-Tek or Permafree slides (the latter being better suited to long term tissue storage).
It can also be used in medicine as a diuretic. In addition, pigments are added to paint, plastics, textiles, papers and inks. Sometimes pigment colourants deliberately added to foods for aesthetic purposes. For example, carotenoids give butter its yellow-orange colour; chlorophyll gives vegetables such as lettuce their green colour. Some fruits like pink grapefruit get their red colours from lycopene pigments; anthocyanins give red cabbage its purple-red colour. Some caramel food colouring contains ammonia oxidized with cobalt or nickel catalysts which will provide greyish colours similar to black ink made from iron gallotannate.
Safety Measures While Handling Pigment Green 7
Pigment green 7 a very poisonous substance in nature. Do not touch or breathe it in the air. It cause damage to the eyes, skin and upper respiratory tract if they exposed. Be sure to wear proper protective clothing and equipment when handling pigment green as per usual industrial hygiene standards (eyes, face, hands etc). Don’t store pigment green 7 with food or drinks as its contamination could lead to serious illness or death. Avoid direct contact of pigments with the body at all times.
There two classes of green pigments used in chromatography: Viridians and non-Viridians or neutrals as they often referred to. Viridian pigments absorb UV light and a class that includes amongst other Pigment Green 1,3-di-(2,4-dimethyl phenyl)-2-[(4′-methyl phenyl)azo]-pyrrolidinium ion. Pigment Green 2 (which is simply green), and is usually used with either water or methanol solvent systems.
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