Overview
Polyaspartic Acid (PASP) is a synthetic, biodegradable polymer derived from aspartic acid. It mimics natural proteins in structure and is celebrated for its environmental compatibility. Initially developed as a green alternative to polyacrylic acid in water treatment, PASP has expanded into agriculture, personal care, and industrial applications due to its versatility and low ecological impact. Its production involves thermal polycondensation of aspartic acid, resulting in a polymer with repeating units of aspartate. The molecular weight and branching can be tailored for specific uses, making it a flexible solution across industries. PASP is particularly valued for its ability to bind metal ions and prevent scale formation, outperforming many traditional chemicals.
Physical and Chemical Properties
PASP exhibits a range of physical forms, including viscous liquids and powders, depending on its molecular weight and formulation. It is highly soluble in water but insoluble in most organic solvents, which makes it ideal for aqueous applications. The polymer decomposes at high temperatures rather than melting, with a typical density of 1.2–1.3 g/cm³ in liquid form. Chemically, PASP is a polyamino acid with carboxylate groups that provide strong chelating properties. It can sequester calcium, magnesium, and other metal ions, preventing scale deposition in pipelines and boilers. Its biodegradability is a key advantage, as it breaks down into harmless byproducts, unlike persistent synthetic polymers.
Main Applications
In water treatment, PASP is widely used as a scale and corrosion inhibitor, particularly in cooling towers and desalination plants. Its ability to bind metal ions reduces fouling and extends equipment life. In agriculture, it enhances fertilizer efficiency by chelating micronutrients, ensuring better uptake by plants. The personal care industry employs PASP in shampoos and cleansers for its mildness and ability to stabilize formulations. It also appears in detergents as a phosphate-free builder, complying with stringent environmental regulations. Industrial applications include use in oilfield chemicals and textile processing, where its biodegradability is critical.
Safety and Storage
PASP is classified as non-toxic and is generally safe for handling. However, powdered forms may cause respiratory irritation if inhaled, requiring proper PPE such as masks and gloves. Liquid formulations should be stored in sealed containers to prevent evaporation or contamination. Storage recommendations include keeping the product in a cool, dry place away from direct sunlight. Shelf life typically ranges from 12 to 24 months, depending on the formulation. Spills should be cleaned with water, as PASP is water-soluble and non-hazardous to aquatic life at recommended concentrations.
B2B Procurement Guide
When sourcing PASP, buyers should prioritize suppliers with certifications for biodegradability (e.g., OECD 301B) and low heavy metal content. Bulk purchases (e.g., 1-ton containers) often reduce costs by 20–30%. Key metrics to evaluate include molecular weight (affecting performance) and viscosity (for liquid grades). For water treatment applications, opt for grades with high chelating capacity (≥300 mg CaCO3/g). Agricultural buyers should verify compatibility with fertilizer blends. Sample testing is advised to ensure consistency. Major producers are located in China, Europe, and the U.S., with lead times of 4–6 weeks for custom formulations.
Related Manufacturers
- 主营：四氢噻吩、二甲基二硫、一乙醇胺、聚天冬氨酸、异辛醇、环丁砜、二甲基亚砜、异丙醚、环己酮、异辛烷、氟硼酸、三乙胺、正庚烷、燕化苯酚、马来酸酐、三乙醇胺、亚硝酸钠、鲁西甲酸、三氧化二锑、3-乙氧基丙胺
- 主营：全氟聚醚二醇、聚硅氮烷、全氟三丁胺、特种硅油、特种硅树脂
- 主营：高温漆、防腐漆、镀锌管、聚氨酯、聚乙烯、橡胶漆、镀锌板、氟碳漆、装饰涂料、地坪面漆、高温涂料、橡胶涂料、防腐油漆、防霉涂料、富锌底漆、地坪涂料、环氧地坪、封闭底漆、防腐底漆、氟碳面漆、环氧富锌、罩光清漆、防腐面漆、氯化橡胶、建筑塔体
- 主营：丙酸钙、肉桂酸、维生素C/抗坏血酸、聚赖氨酸、低聚木糖、edta二钠、纳他霉素、抗氧剂264、抗坏血酸、双乙酸钠、胍基乙酸、抗氧剂t501、抗氧剂1010、抗氧剂dltp、半胱氨酸盐酸盐、半胱氨酸、果胶、干酪素、苯丙氨酸、乳酸链球菌素、肉桂酸钾、色氨酸、牛磺酸、酪蛋白酸钠、维生素C、vc
- 主营：福美钠、五氧化二钒、氨基磺酸、聚天门冬氨酸分散剂、氨基化锂、焦性没食子酸、次氯酸钙、漂粉精、酪蛋白胨、甘油、九水硫化钠、牛油脂肪酸、酵母膏、氟硅酸钠、单乙醇胺、氢氧化钾、氟化钠、氟化钙、氧化铅、油酸钠、偏钒酸铵、氢氧化钡、EVA乳液、二硫化钼、氟化氢钾
- 主营：叔碳酸、十八醛、溶菌酶、壳聚糖季铵盐、海藻糖、癸二醇、氨基丙基、氢路噻嗪、邻苯二甲、乙基碳二、羟基癸酸、正十七烷、谷胱甘肽、烷二甲醇、松果体素、vc磷酸酯镁、2-甲基丁醛、朱栾倍半萜、丁烷四乙酸、表面活性剂、癸烷撑二醇、缩水甘油邻、10-羟基羊蜡酸、氢氯噻嗪杂质、盐酸邻菲罗啉
- 主营：四氢噻吩、乙硫醇、单氰胺、二甲基二硫醚、3-甲硫基丙醛、四氢吡咯、邻氯苯腈、噻吩、盐酸羟胺、硬脂酸锌、异丙胺、氯乙酸、氟硼酸
- 主营：丙烯酸单体、全氟三丁胺、甲基丙烯酸十八酯、聚天门冬氨酸钠盐、乙二醇二缩水甘油醚、催化剂、催干剂、环氧稀释剂、增塑剂、偶联剂、交联剂、橡胶塑料助剂、电镀电子科技材料、丙烯酸酯类
- 主营：十二碳二元酸、十四碳二元酸、丙烯酸羟乙酯hea、聚天门冬氨酸钠、二乙基甲苯二胺、4-氰基吡啶、NVP、NVC、NMP、蒽醌、乙醇胺、甲基丙烯酸羟乙酯、四甲基氢氧化铵、异辛酰氯、二甲基亚砜、癸二酸、异壬酰氯、PO、二硫氰基甲烷
- 主营：二氧化硒、硫氰酸钠、对甲苯磺酸、聚天门冬氨酸、九水硫化钠、硫化钡、氢氧化钡、苯甲酰氯、三硫代碳酸钠、还原铁粉、氟硅酸铵、氟化钾、黄血盐钾、氟化钠、黄血盐钠、过氧化苯甲酰、AC发泡剂、异丙醇铝、4-对二氯苄、多硫化钠
- 主营：黄糊精、松醇油、氨基磺酸、聚天门冬氨酸分散剂、戊二醛、五氧化二钒、福美钠、二号浮选油、牛油脂肪酸、漂粉精、氧化铅、九水硫化钠、氨基锂、次氯酸钙、蛋白胨、羟基乙叉二膦酸、苯甲醇、苯亚磺酸钠、氯铂酸、硅酸镁铝、草酸亚铁、草酸钛钾、甲基磺酸铋、牛骨蛋白胨、苄基胂酸、氟化氢钾
- 主营：保温板、轻集料、钢结构、聚氨酯、聚脲喷涂、聚脲防腐、xps挤塑、混凝土、隔热板、隔热漆、发泡剂、防水材料、泡沫塑料、屋顶隔热、防水补漏、隔热保温、防水保温、屋面防水、防腐除锈、防水堵漏、发泡水泥、隔热喷涂、防水涂料、泡沫保温、防腐涂料
- 主营：阻燃剂、乙酸镍、乙酸镝、聚天门冬氨酸、硫酸锂、硫酸锶、溴氨酸、香茅醇、肌氨酸、锂电池、四氢萘、磷酸铬、碳酸镁、碳酸镍、防冻剂、磷酸铝、叔丁醇、氟苯基、浮选剂、稀释剂、羟乙基、去除剂、庚二酸、除磷剂、十八烯、蛋白酶
- 主营：溴代吡咯腈、芥酸、异山梨醇、聚天门冬氨酸钾、异山梨醇二甲醚、四氯苯醌、对氨基苯乙酸、四乙酰核糖、对氨基苯甲酸、2,6-二氟苯胺、蒽醌
- 主营：5-二甲基吡唑、N-油酰基肌氨酸、环己基苯、聚天门冬氨酸钾、β-溴苯乙烷、乙基纤维素、硫酸烟酰苯胺、2-辛烯基琥珀酸酐、菜籽油甲酯、5二硝基水杨酸、辛酸镁、辛酸钾、有机硅季铵盐、萘钠处理液