SODIUM POLYASPARTATE

SODIUM POLYASPARTATE = Sodium Salt of Polyaspartic Acid = PASP 

CAS no: 181828-06-8  35608-40-6  94525-01-6  34345-47-6
Molecular Formula: C4H6NO3(C4H5NO3M2)C4H6NO4

Description of SODIUM POLYASPARTATE:
Sodium Polyaspartate is a sodium salt of polyaspartic acid. 
The polymer is an odorless, granular solid appearing beige or orange at room temperature.
Sodium polyaspartate is biodegradable condensation polymer based on the amino acid aspartic acid.

Sodium polyaspartate, non-phosphorus, non-toxic, non-pollution and completely biodegradable, is an environmentally friendly chemical and belongs to a class of polyamino acids. 
The peptide bond on the main chain of Sodium Polyaspartate is easily broken by the action of fungi, microorganisms, etc., and is finally degraded into water and carbon dioxide that are harmless to the environment, which is safe and reliable.
Polyaspartic acid sodium salt has excellent scale restraint on calcium carbonate, calcium sulfate, barium sulfate, calcium phosphate, and so on. 

The scale inhibition rate to calcium carbonate is 100%.
Polyaspartic acid sodium is a water-soluble polymer. 
Polyaspartic acid sodium is an eco-friendly water therapy agent. 
The sodium salt has several properties. 

Such as non-phosphor, non-nitrogen, non-pollution and also completely biodegradation.
Polyaspartic acid sodium salt is a sodium salt of poly aspartic acid. 
Polyaspartic acid sodium is a naturally degradable condensation polymer based upon the amino acid aspartic acid.
Polyaspartic acid sodium salt has excellent scale restraint on calcium carbonate, calcium sulfate, barium sulfate, calcium phosphate, and so on. 

Sodium salt of polyaspartic acid is a type of biopolymer product. 
The molecules have plentiful amido bond, carboxyl, as well as various other active groups.
Amido peptide bond has organic activity and also high chemical stability. 
The amido peptide bond is very difficult to break down at high temperatures circumstances.
The carboxyl group can complex with numerous metal ions in water. 

That makes poly aspartic acid sodium salt has high chemical activity in a liquid solution.
In each structural unit of poly aspartic acid salt, the oxygen and also nitrogen atoms can conveniently develop hydrogen bonds with water molecules. 
Because poly aspartic acid salt has great hydrophilicity as well as water solubility.
The special molecular structure makes sure Sodium Polyaspartate has excellent dispersing capability. 

And also corrosion preventing properties, outstanding biodegradability, and environment-friendly.
Sodium Polyaspartate can be synthesized in an eco-friendly method. 
ISodium Polyaspartate is biodegradable. 
Therefore polyaspartic acid sodium is a green alternative to numerous products.
Sodium Salt of Polyaspartic Acid is a water soluble polymer. 

Sodium Salt of Polyaspartic Acid is a green water treatment agent, with properties of non-phosphor, non nitrogen, non-pollution and fully biodegradation. 
Sodium Salt of Polyaspartic Acid has good scale inhibition on calcium carbonate, calcium sulfate, barium sulfate, calcium phosphate, etc.. 
Moreover, PASP has dispersion and corrosion inhibition properties to metal equipment.
There are two primary functions presented by a polycarboxylate:

Dispersion and crystal growth inhibition of calcium carbonate.
General particulate dispersion, i.e. stabilisation of particulate matter.
Polyaspartic acid (PASP) is a kind of biodegradable green biopolymer materials. 
Polyaspartic acid (PASP)s molecules contains abundant amido bond, carboxyl and other active groups. 

The special molecular structure of PASP ensures that Polyaspartic acid (PASP) has good dispersing ability, corrosion inhibiting properties, excellent capabilities of chelation, adsorption, excellent biodegradability and environmental friendly characteristics.
Sodium polyaspartate is a condensation polymer based on the amino acid aspartic acid. 
The polymerization of aspartic acid consists in heating to 180 ° C. 

Subsequently, the resulting polymer is mixed in water with sodium hydroxide to form sodium polyaspartate. 
Sodium polyaspartate is synthesized in an environmentally friendly way. 
Sodium polyaspartate is a dark amber liquid, soluble in water. 
Sodium Salt of Polyaspartic Acid is a water soluble polymer. 

Sodium Salt of Polyaspartic Acid is a green water treatment agent, with properties of non-phosphor, non-nitrogen, non-pollution and fully biodegradation. PASP has good scale inhibition on calcium carbonate, calcium sulfate, barium sulfate, calcium phosphate, etc.. 
Sodium Salt of Polyaspartic Acids scale inhibition rate for calcium carbonate is 100%. 
Polyaspartic acid (PASP) is a kind of biodegradable green biopolymer materials. 

Sodium polyaspartates molecules contains abundant amido bond, carboxyl and other active groups. 
The special molecular structure of PASP ensures that Sodium polyaspartate has good dispersing ability, corrosion inhibiting properties, excellent capabilities of chelation, adsorption, excellent biodegradability and environmental friendly characteristics.
PASP is a kind of biopolymer materials, of which molecules contains abundant amido bond, carboxyl and other active groups. 

Amido peptide bond has biological activity and high chemical stability, hard to decompose at high temperature; carboxyl group can be complex with many metal ions in water, which make PASP have high chemical activity in aqueous solution; in each structural unit of PASP, the oxygen and nitrogen atoms can easily form hydrogen bonds with water molecules, PASP has good hydrophilicity and water solubility. 

The special molecular structure of PASP ensures that PASP has good dispersing ability, corrosion inhibiting properties, excellent biodegradability and environmental friendly characteristics.
Poly-L-aspartic acid sodium salt (poly(L-Asp), poly(L-Aspartic acid sodium salt)) is a negatively charged synthetic polyamino acid having one Na per aspartic acid unit. 
Poly-L-aspartic acid sodium salt is soluble in water.

Uses and Apllications of SODIUM POLYASPARTATE:
-SODIUM POLYASPARTATE is used this ingredient in some of our laundry and dishwasher products to help prevent corrosion and scaling in the machines. 
-Sodium polyaspartate is biodegradable and can be synthesised in an environmentally responsible way, making SODIUM POLYASPARTATE a more sustainable alternative to materials like sodium polyacrylate which is used in agriculture and some disposable nappies.

-Agriculture
-Agriculture fertilizer synergist
-Agriculture Soil conditioner;
-Agriculture nutrient absorption enhancer;
-Agriculture Simultaneous use with pesticides;

-Corrosion inhibitor
-Cleaning agent
-Cosmetics
-Building material preparations
-Detergent

-Dispersing
-Fertilizers
-Food industry
-Leather industry
-Material protection

-Metal surface treatment
-Micronutrients
-Oilfield chemical
-Optical brighteners
-Petrochemicals

-Petroleum exploitation
-Pigments, colouring agent and dyestuff
-Scale inhibitor
-Sugar industry
-Textile industry

-Washing and cleaning agent industry
-Water Treatment
-Water softening
-Wetting agent

-As a scale inhibitor, SODIUM POLYASPARTATE is particularly suitable for inhibiting the formation of calcium carbonate scale and calcium sulfate scale in cooling water, boiler water and reverse osmosis treatment, and especially has a good effect on sulfate scales. 
SODIUM POLYASPARTATE has synergistic effect after compounding with PBTCA, HEDP, etc.
-As a corrosion inhibitor, SODIUM POLYASPARTATE can be compounded with oxidized starch, organic phosphorus, zinc salt, etc., to achieve better corrosion inhibition effects. 
The lower concentration of polyaspartic acid at pH 8-9 has a better corrosion inhibition effect in seawater. 

-As dispersant, pigment dispersant (dye treatment for textile printing and dyeing), coal water slurry dispersant, etc.
-Phosphorus-free scale and corrosion inhibitor: 
Polyaspartic acid PASP as a scale and corrosion inhibitor is widely used in salt industry, oilfield reinjection water, seawater desalination, drilling fluid viscosity reducer, industrial circulating water, boiler water, reverse osmosis water, coal water slurry additives and other water treatments. 
In high hardness, high alkalinity, high PH, high concentration multiple, and high temperature system, Polyaspartic acid PASP has excellent performance. 

-Green detergent auxiliaries:
Such as detergent synergists (dishwashing detergent, laundry detergent, industrial washing Agent, etc). 
Polyaspartic acid is electrolyte-resistant, alkali-resistant and low-foaming. 
The role of polyaspartic acid in washing is to soften the water,promote dispersion and anti-fouling, and prevent the oil stains that have been washed away from re-staining. 
The key point is that PASP is excellent in biodegradation.

-Agricultural applications:
Used as fertilizer synergist, soil conditioner, wetting agent, nutrient absorption enhancer, promote the absorption of phosphorus by plants, and promote the growth of plant roots. 
Prevent drip irrigation pipes from scaling, alleviate soil compaction, and improve soil salinity. 
In addition, the combined use with pesticides can improve the efficacy. 

-Cosmetics application: 
Polyaspartic acid added to cosmetics can moisturize the skin, lock water on the skin, and improve skin elasticity.
-Polyaspartic acid sodium salt has dispersion and also corrosion inhibition properties to metal devices. 
Polyaspartic acid sodium salt is an option of phosphor-containing water treatment chemicals. 
To make sure that can stay clear of water system eutrophication and also the second pollution.
-Poly aspartate sodium also can be used as a naturally degradable anti-scaling agent as well as a corrosion inhibitor. 
Since Poly aspartate sodium has outstanding water-solubility and capability to chelate metal ions.

-Water Treatment:
*Engineers utilize SODIUM POLYASPARTATE as an antiscale and also corrosion prevention in the high hardness, high alkalinity, high ph-value, high-concentration multiple systems. 
Such as commercial circulating cool water system, central heating boiler water, oilfield water, and also reverse osmosis water.
*PASP has characteristic of polyanion surfactant, which can be chelated with magnesium, copper, iron, cobalt and other polyvalent metal ions after hydrolysis. 
*PASP has excellent scale inhibition and dispersion properties. 

*As scale and corrosion inhibitor, PASP is widely used in industrial circulating water, boiler water, reverse osmosis water, oil recycled water, desalination water treatment, especially for water treatment systems of high hardness, high alkalinity, high pH and high concentration.
-Oil Drilling:
*Polyaspartic acid sodium is an excellent auxiliary in the oil field industry. 
*Polyaspartic acid sodium can be used as thinner for oil drilling liquid and scale corrosion inhibitor in the reinjection water pipeline.

-Daily Chemical:
*Because of Polyaspartic acid sodiums features of non-phosphorus and totally biodegradation. 
The sodium salt of polyaspartic acid can be used as brand-new water softening active ingredient in the popular home cleaning agent formulations. 
*By the way, you can find sodium salt of polyaspartic acid in disposable baby diapers ingredients.

-Agriculture:
*PASP can be used as fertilizer synergist in agriculture. 
Adding it into urea can improve fertilizer efficiency by 20-40% and reduce the fertilizer dosage.
*Adding PASP in the production process for fertilizer can increase fertilizer granulation level, increase the number of standard particles to 97%, thereby enhancing the rate of finished products and reduce loss.
*PASP can improve the nutrient absorption of grain, vegetable, melon and fruit, and flowers, promote root growth, increase crop yields, enhance plants and PASPs stress resistance.

*PASP can be used with phosphorodithioate and other pesticides to enhance pesticide effect, crop yields and improve crop quality.
*PASP can form complex with heavy metals in the soil, displace heavy metals from the soil, in order to achieve the purpose of restoration of soil pollution.
*When added in a variety of fertilizers, poly aspartic acid sodium can promote the roots’ growth and plant adsorption for N, P, K ratios. 
*So poly aspartic acid sodium can increase the usage ratio of fertilizers and the crop yield.

-Petroleum:
*PASP can form chelation with calcium, magnesium, copper, iron and other metal ions to attach to the metal surface of the container to prevent metal corrosion. 
SODIUM POLYASPARTATE is an excellent corrosion inhibitor, especially for preventing oil pipeline corrosion caused by carbon dioxide;
*PASP with molecular weight around 10000 can reduce fluid viscosity. 
In bentonite mud, when the dosage of PASP is 0.4%, the viscosity reduction rate can be over 70%;
*SODIUM POLYASPARTATE has good resistance to salt and calcium;

-Detergents:
*PASP has characteristics of anionic surfactant and good chelation, dispersion properties. 
SODIUM POLYASPARTATE can soften water, dispersing, anti-fouling, and prevent re-contamination of the greasy dirty off the clothes during the washing process;
*SODIUM POLYASPARTATE can be adsorbed on the surface of dinnerware, prevent mouldy, resulting in better cleaning effect. 
SODIUM POLYASPARTATE is an important component of dishwashing detergent for cleaning of hard surfaces;

-Other Applications of SODIUM POLYASPARTATE:
*Because of SODIUM POLYASPARTATEs good dispersion to inorganic and organic compouds, PASP has been applied with different degree in pharmaceuticals, pigments, paints, leather, inorganic chemicals, oilfield chemicals and other fields.
*PASP is called "third-generation polyurea", SODIUM POLYASPARTATE can be used to produce protective coatings of high weather resistance, high resistance to chemical corrosion, fast-curing paint, and applied directly to fast curing coatings on the metal substrate and industrial flooring, etc.,  
*SODIUM POLYASPARTATE can be used in the tanning process as tanning agents, produces biodegradable leather; pharmaceutical carrier material made from PASP has been widely used in family planning, anti-tumor drugs making etc.

-Sodium Salt of Polyaspartic Acid is an alternative of phosphor containing Water Treatment Chemicals, avoiding water system eutrophication and second pollution.
-Dispersant, sequestrant, humectant for skin care products, hairskin protectant. 
-Dispersant in colored cosmetics. 
-In adhesives; scale preventer, corrosion inhibitor. 
-Dispersant in water treatment; co-builder, soil dispersant, water softener in detergents, hard surfactant cleaners.

-Polyaspartic acid is a biodegradable polycarboxylate used in, for example, liquid detergents, dishwashing formulations, water softening systems and general cleaning formulations.
-SODIUM POLYASPARTATE is used in agriculture, in adhesives, as a part of hygienic needs (sanitary napkins, baby diapers) and in cosmetics (an alternative to sodium polyacrylate). 
-SODIUM POLYASPARTATE has the role of conditioner, antistatic agent, moisturizer and surfactant in cosmetic products. 
-Sodium polyaspartate is a well biodegradable substance. 
-Agriculture, Beamhouse, Ceramic, Construction, Construction material, Corrosion inhibitor, Dispersing, Dispersing agent for pigments, Dispersing of fillers, 

-Dyestuffs: pigments and optical brighteners 
-Fertilizers, Finishing of metals, Food industry, Leather industry, Material protection, Metal industry.
-Oil recovery opperations, Paper Manufacture, Paper industry, Petrochemicals, Pigments.
-Scale inhibition, Slurries, Sugar industry.
-Textile auxiliaries, Textile industry, Washing- and cleaning agent industry, Water Treatment, Water softening.

-PASP has good scale inhibition on CaCO3, CaSO4, BaSO4, Ca3(PO4)2 ,etc..
-PASP is an alternative of phosphor-containing Water Treatment Chemicals and has better scale inhibition effects. 
-PASP can avoid eutrophication and second pollution in water system.
-Applications for poly-L-aspartic acid sodium salt include the conjugation to active molecules for drug delivery, the layer-by-layer deposition techniques for surface coating, the mineralization of bone.

Synonyms:  
Sodium PASP
2-Butenedioic acid (2Z)-ammonium salt 
Aspartic acid,  homopolymer, sodium salt
Polyaspartic acid, sodium salt
Poly-a,b-DL-aspartic acid, sodium salt
L-aspartate, monosodium, homopolymer
L-aspartic acid sodium homopolymer
aspartic acid, disodium salt, L-, homopolymer
L-aspartic acid, sodium salt (1:2) homopolymer
disodium (2S)-2-aminobutanedioate homopolymer
disodium (2S)-2-aminosuccinate homopolymer
disodium L-aspartate homopolymer
poly(alpha,beta)-dextro,laevo-aspartic acid sodium salt, homopolymer
sodium L-aspartate homopolymer
monosodium L-aspartate homopolymer
(Z)-2-Butendioic acid ammonium salt

Physical and Chemical properties of SODIUM POLYASPARTATE:
Appearance: 
Yellow to reddish-brown liquid
Yellow to brown powder
Density(20℃)/g·cm3: ≥1.20
Bulk density (Kg/Liter): ≥0.3
Molecular Weight: 1000-5000
Solubility: Aromatic and aliphatic compds.
Solubility in Water at 20°C [g/100g H2O]: each ratio ; sloid: 80
Slightly soluble: in alcohols
pH (1% water solution): 9.0-11.0
Boiling Point:    264.00 to 265.00 °C. @ 760.00 mm Hg (est)
Flash point: 236.00 °F. TCC ( 113.50 °C. ) (est)
Evaporation rate: No data available
Flammability (solid, gas): No data available
Upper/lower flammability or explosive limits: No data available
Vapor Pressure:    0.002890 mmHg @ 25.00 °C. (est)
Vapour density: No data available
Relative density: No data available
Water solubility: No data available
Partition coefficient: n-octanol/water: No data available
Auto-ignition temperature: No data available
Decomposition temperature: No data available
Viscosity: No data available
Explosive properties: No data available
Oxidizing properties: No data available
logP (o/w): -0.669 (est)
 

Exposure controls/personal protection of Sodium Salt of Polyaspartic Acid:
-Control parameters:
Components with workplace control parameters
-Exposure controls:
Appropriate engineering controls:
General industrial hygiene practice.
Personal protective equipment:

Eye/face protection:
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection:
Handle with gloves.
Gloves must be inspected prior to use.
Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. 
Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. 
Wash and dry hands.
The selected protective gloves have to satisfy the specifications of Regulation (EU) 2016/425 and the standard EN 374 derived from it.

Body Protection:
Choose body protection in relation to its type, to the concentration and amount of
dangerous substances, and to the specific work-place., 
The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.

Respiratory protection:
Respiratory protection is not required. 
Where protection from nuisance levels of dusts are desired, use type N95 (US) or type P1 (EN 143) dust masks. 
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Control of environmental exposure:
Do not let product enter drains.

First aid measures of SODIUM POLYASPARTATE:
-Description of first aid measures
If inhaled:
If breathed in, move person into fresh air. 
If not breathing, give artificial respiration.
In case of skin contact:
Wash off with soap and plenty of water.
In case of eye contact
Flush eyes with water as a precaution.
If swallowed:
Never give anything by mouth to an unconscious person. 
Rinse mouth with water.
-Most important symptoms and effects, both acute and delayed:
-Indication of any immediate medical attention and special treatment needed: No data available

Accidental release measures of Sodium Salt of Polyaspartic Acid:
-Personal precautions, protective equipment and emergency procedures:
Avoid dust formation. 
Avoid breathing vapours, mist or gas.
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Sweep up and shovel. 
Keep in suitable, closed containers for disposal.

Firefighting measures of Sodium Salt of Polyaspartic Acid:
-Extinguishing media:
Suitable extinguishing media:
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
-Advice for firefighters:
Wear self-contained breathing apparatus for firefighting if necessary.
-Further information: No data available

Stability and reactivity of SODIUM POLYASPARTATE:
-Reactivity: No data available
-Chemical stability: Stable under recommended storage conditions.
-Possibility of hazardous reactions: No data available
-Conditions to avoid: No data available
-Hazardous decomposition products:
Other decomposition products: No data available
Hazardous decomposition products formed under fire conditions: 
Nature of decomposition products not known.

Handling and storage of SODIUM POLYASPARTATE:
-Precautions for safe handling:
Provide appropriate exhaust ventilation at places where dust is formed.
-Conditions for safe storage, including any incompatibilities:
Store in cool place. 
Keep container tightly closed in a dry and well-ventilated place.
Recommended storage temperature -20 °C.
-Package and Storage:
Storage for ten months in a shady room and dry place.