Description

Nitrilotriacetic acid, disodium salt, monohydrate is a high-purity chelating agent and sequestrant widely used in industrial and laboratory applications. Its primary value lies in its ability to effectively bind and deactivate di- and trivalent metal ions, preventing unwanted precipitation and catalytic activity. This makes it an essential component for manufacturers in the detergent, textile, pulp & paper, and water treatment industries seeking to improve process stability and product quality.

Application

• Detergent Builder: Acts as a phosphate-free alternative in laundry and dishwashing detergents to soften water by sequestering calcium and magnesium ions.
• Textile Processing: Used in scouring, bleaching, and dyeing baths to prevent metal-ion interference, ensuring consistent color and fabric quality.
• Pulp & Paper Industry: Employed in bleaching processes to chelate transition metals that catalyze the decomposition of bleaching agents like hydrogen peroxide.
• Industrial Cleaning: Formulated into cleaners for boilers, cooling systems, and metal surfaces to control scale and inhibit corrosion.
• Water Treatment: Functions as a scale inhibitor and dispersant in circulating water systems and reverse osmosis membranes.
• Laboratory Reagent: Serves as a buffer component and a chelating agent in analytical chemistry and biochemical research.
• Personal Care: Incorporated in certain cosmetic and personal care formulations as a stabilizer and sequestrant.

Basic Information

Product Name	Nitrilotriacetic acid, disodium salt, monohydrate
CAS No.	23255-03-0
Molecular Formula	C6H7NNa2O6 • H2O
Molecular Weight	275.13 g/mol
Synonyms	NTA, disodium salt, monohydrate; Disodium nitrilotriacetate monohydrate; Nitrilotriacetic acid disodium salt hydrate; NTA-Na2; Chelaton III; Trilon A; Titriplex I; Disodium NTA
EINECS	245-513-9

Quality Control

Our Nitrilotriacetic acid, disodium salt, monohydrate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, heavy metal content, and loss on drying are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the original container must be kept tightly sealed after use to prevent absorption of atmospheric moisture, which can lead to caking and potential degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
pH (1% Solution)	10.5 - 11.5
Loss on Drying	5.0 - 7.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.01 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.