Category :

Intermediates

CAS NO : 25608-40-6

EC NO :

Molecular Formula : (C₄H₇NO₄)x

Main Specifications :

Synonyms : L-Aspartic acid, homopolymer;L-Aspartic acid homopolymer;Poly-L-aspartic acid;

Molecular Structure:

Application
1. As the special agricultural fertilizer synergist, polyaspartic acid is the raw material of
the polypeptideurea,polypeptide compound fertilizer, and controlled release fertilizer.
It can promote the absorption of nutrients for the grain, vegetables, melons and fruits,
flowers and the other crops. At the same time, it can improve the effect together with the
pesticide. The domestic and foreign research and application results indicate that polyaspartic
acid, as a plant nutrition absorption promoting agent, has a remarkable effect indeed, is
suitable for a variety of plants and soil, and its main characteristics used together with
chemical fertilizer displays in:

Characteristic 1: Reduce the loss of chemical fertilizer, activate nutrient elements and improve
the utilization rate of the chemical fertilizer, thus reduce 30% of the using amount of the
chemical fertilizer, and increase 10% - 30% of the yield.
Characteristic 2: Promote the crops to absorb the trace elements such as iron, zinc,
manganese, etc.Comparing with the other crops, the crops treated by using polyaspartic
acid content more than 3 to 4 times of the trace elements.
Characteristic 3: Promote the crop ripe 7-10 days earlier, prolong the harvest time for 10-15
days.
Characteristic 4: Promote root growth and enhance the resistance.
2. The industrial special polyaspartic acid is widely used as the corrosion inhibitors in the
water treatment fields such as industrial cooling circulating water, reverse osmosis water,
back injection water in oil field,metal cutting fluid, and boiler and steam pipeline; It can
also be used as dispersant in papermaking, printing and dyeing and washing industry.
Polyaspartic acid has an outstanding performance in the systems of high hardness, high
alkalinity, high PH value and high concentration multiple. Its scale inhibition effect is
better than that of the commonly used scale inhibitors containing phosphine. Using this
product instead of water treatment agent containing phosphine, can avoid the water
eutrophication and the secondary pollution in the process of discharge.
Package & Storage
The product is packed by plastic drums, 25 kg or 250 kg per barrel, and also can be
packed according to the needs of the customers. It should be stored inside the ventilated
storeroom, and the storage period is ten months.
Safety Protection
This product should be avoided to contact eyes, skin or the clothes. Once it is splashed to
body, rinsed immediately with plenty of water.
Hydrolysis precursor of the polyaspartic acid——Poly (succinimide) (PSI), also supply
solid polyaspartic acid.