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white odorless crystals
Explosion and fire safe.
by covered transport
in closed, cool warehouse premises without access to direct sunlight
| Indicator name | 2Na EDTA | 4Na EDTA |
|---|---|---|
| Appearance | White powder | White powder |
| Purity, not less than | 99% | 99% |
| Chlorides, not more than | 0.01% | 0.01% |
| Sulfates (SO4), not more than | 0.05% | — |
| Iron content (Fe), not more than | 0.001% | 0.001% |
| Heavy metals (Pb), not more than | 0.001% | 0.001% |
| pH (10 g/L, 25 °C) | 4.0–5.0 | — |
| pH (1% aqueous solution) | — | 10.5–11.5 |
| Chelate content | 260–290 | 215 min. |

Trilon B is the disodium salt of EDTA, a white crystalline powder with good solubility and a pronounced ability to form complexes with calcium, magnesium, iron and a number of heavy metal ions. Through stable chelate bonds, it stabilizes formulations, reduces water hardness and helps keep the process within set parameters without "drift" of readings. Batches come with a quality certificate showing actual activity and purity data, which simplifies incoming inspection and repeatability of results on the line. If you need to buy Trilon B for series production, we can select packaging to match your dosing equipment and arrange a convenient delivery schedule.
Highly soluble in alkalis, acids and aqueous solutions.
It does not occur in nature — it is an entirely synthetic compound. With insufficient wastewater treatment at some plants and/or improper waste disposal, it can enter the environment.
It is interesting to note that the name Trilon B was originally simply a trademark for this substance from the manufacturer BASF, but it caught on and became a common name for all types of this substance.
GOST 10652-73 sets requirements for the disodium salt of ethylenediaminetetraacetic acid regarding the mass fraction of the main substance, moisture, solution pH, transparency and controlled metal impurities. The document describes analysis methods, sampling and combining rules, acceptance procedures and certificate preparation, as well as requirements for packaging, labeling, transportation and storage conditions. Tying the product to the standard ensures comparability of laboratory protocols and predictable product behavior when switching batches, so the technologist can introduce the substance into existing regulations without recalculating modes or adjusting formulations.

Industrial Trilon B is obtained from the acid form of EDTA by controlled neutralization with alkali to the disodium salt, followed by purification of the solution, concentration and crystallization. After separation, the crystals are washed, dried to the standard residual moisture and brought to the target particle size to ensure uniform dissolution and convenient dosing. At the final stage, key parameters are checked against the standard, the product is packaged into sealed containers and labeled for traceability throughout the supply chain. This route produces a product with stable activity that behaves predictably in formulations and technological schemes.
When it comes into contact with the body, Trilon B can cause skin and mucous membrane irritation; if inhaled, it can cause symptoms of bronchitis. Therefore, gloves, respirators and other personal protective equipment should be used.
If affected, move the victim outdoors or to a well-ventilated room, and rinse the mucous membranes and skin thoroughly with water. If swallowed, rinse the mouth thoroughly and give the person plenty of water to drink.
Trilon B is explosion and fire safe. Store in closed, cool warehouse premises without access to direct sunlight. During storage, contact with most non-ferrous metals should be avoided.
Yes, Trilon B is a common trade name for the disodium salt of ethylenediaminetetraacetic acid, that is, EDTA disodium salt. The designation 2Na EDTA or EDTA-Na₂ may also appear in documents. When purchasing, it is important to check not only the name but also GOST 10652-73, the product form, purity, content of chlorides, sulfates, iron, heavy metals, pH and the chelating capacity indicator. This helps avoid confusion with other EDTA salts.
2Na EDTA and 4Na EDTA are different EDTA salts that differ in composition, solution pH and behaviour in working media. 2Na EDTA is usually characterised by an acidic solution reaction, while 4Na EDTA is alkaline. Therefore they cannot be considered a complete substitute for each other just because of the common name “Trilon B” or “EDTA”. When purchasing, it is necessary to specify the exact form, required pH, purity, chelate indicator and the enterprise’s internal specification.
When receiving Trilon B, the integrity of the bags, labelling, production date, quality certificate and the batch’s compliance with GOST 10652-73 are checked. Laboratory control looks at purity, chloride, sulfate and iron content, heavy metals, solution pH and chelate content. Visually, the product should be a white powder or crystalline substance without foreign smell, wetting, dense lumps or contamination. For regular deliveries, it is advisable to record the indicators of each batch.
Trilon B is stored in closed, cool warehouse rooms without access to direct sunlight, in undamaged factory packaging and protected from moisture. If it gets wet, the product can cake, become harder to dose and require additional checking before preparing solutions. Bags are placed on pallets, separately from substances that could contaminate the batch.
Every minute matters so your production doesn't stand idle. That's why we've built our logistics so that ordering and receiving our reagents is easy, and delivery times are predictable.
We deliver across Russia. We've built our processes so that distance is not an obstacle to a fast delivery.
Choosing a carrier: We work with trusted transport companies. Choose the one you trust — we will ship your cargo with it.
To your warehouse or pickup: We will deliver the batch directly to your warehouse. Or, if it's more convenient, pick it up yourself from ours.
Speed: In most regions, delivery takes from 1 to 7 business days. Need it faster? We can discuss urgent options.
We understand that convenience also means flexible payment. That's why we offer different options:
Bank transfer for organizations against an issued invoice.
Online payment for fast processing.
This is the fastest way: you pay — and your order immediately goes into work.
Call us at +7 (495) 133-02-40 right now!
Send a request to order@chimko.com or use our feedback form.