Author name: PolyblueChem Team

Polyaspartic Acid: A Biodegradable Chelant from Aspartic Acid

Polyaspartic Acid: A Biodegradable Chelant from Aspartic Acid Polyaspartic acid (PASP) is a bio-based, water-soluble polymer built from repeating aspartic acid units. Because it binds metal ions and inhibits scale, it is increasingly used as a biodegradable alternative to non-degradable chelators and scale inhibitors such as EDTA and polyacrylates. Its starting material is aspartic acid […]

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Polyglutamic Acid in Agriculture and Water Treatment

Polyglutamic Acid in Agriculture and Water Treatment Polyglutamic acid (gamma-PGA; CAS 25513-46-6) is best known as a skincare humectant, but its properties – strong water retention, anionic character, biodegradability and biocompatibility – make it valuable in two very different industrial fields: agriculture and water treatment. This article looks at those uses. For the chemistry and

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Dicyandiamide as a Nitrification Inhibitor in Fertiliser

Dicyandiamide as a Nitrification Inhibitor Nitrogen is the nutrient that most often limits crop yield, but a large share of the nitrogen applied as fertiliser can be lost before the crop uses it – leached as nitrate, volatilised as ammonia, or lost as nitrous oxide. Dicyandiamide (DCD; CAS 461-58-5) is one of the best-known nitrification

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Ferric Sulphate for Phosphorus Removal in Wastewater

Phosphorus Removal: Why Ferric Sulphate Is Widely Used Eutrophication – the over-enrichment of water with nutrients – is driven largely by phosphorus, and tightening discharge limits have made chemical phosphorus removal a standard step in municipal and industrial wastewater treatment. Ferric sulphate (Fe2(SO4)3, CAS 10028-22-5) is one of the most effective and widely used reagents

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DL-Aspartic Acid vs L-Aspartic Acid: Choosing the Right Form

DL-Aspartic Acid vs L-Aspartic Acid: Choosing the Right Form Aspartic acid is one of the twenty standard amino acids, but “aspartic acid” on a label or an order can mean three different products: L-aspartic acid (the natural form), D-aspartic acid (its mirror image) and DL-aspartic acid (the 50:50 racemic mixture). They have the same formula

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Polyglutamic Acid in Skincare and Cosmetics

Polyglutamic Acid in Skincare and Cosmetics Polyglutamic acid (gamma-PGA; CAS 25513-46-6) has become one of the most talked-about humectants in skincare. It is a bio-based, biodegradable polymer produced by fermentation, and it is valued for holding a large amount of water per unit weight while leaving a light, non-tacky feel – which is why it

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Dicyandiamide as a Latent Epoxy Curing Agent

Dicyandiamide as a Latent Epoxy Curing Agent Dicyandiamide (DCD; CAS 461-58-5) is the workhorse latent curing agent for epoxy resins. Its defining property is latency: a mixture of epoxy resin and dicyandiamide is stable at room temperature, often for months, but cures rapidly when heated. That behaviour is the basis of one-part epoxy adhesives, coatings,

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Ferric vs Ferrous Sulphate in Water Treatment

Ferric vs Ferrous Sulphate: Why It Matters in Water Treatment Iron salts are among the most widely used coagulants in water and wastewater treatment, and buyers frequently have to choose between ferric sulphate (Fe2(SO4)3, CAS 10028-22-5) and ferrous sulphate (FeSO4). The two are related but behave differently in the plant, and the choice affects dosing,

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Choline Chloride in Animal Feed: Why It Is Essential

Choline Chloride in Animal Feed Choline chloride (CAS 67-48-1) is the single most important commercial source of choline, an essential nutrient that animals cannot make in sufficient quantities and must obtain from their diet. That is why choline chloride is one of the highest-volume feed additives in the world, used across poultry, swine, ruminant and

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Sodium Gluconate in Construction: Concrete Admixture

Sodium Gluconate in Construction Sodium gluconate (CAS 527-07-1) is one of the most widely used concrete admixtures in the construction industry. As a mild, bio-based chelating agent, it acts as a set retarder and water reducer, improving the workability and strength of concrete and helping to manage the setting behaviour of large or hot-weather pours.

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