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Tetrasodium 2-phosphonobutane-1,2,4-tricarboxylate, PBTCA·Na₄

Tetrasodium 2-phosphonobutane-1,2,4-tricarboxylate, PBTCA·Na₄

Category:

Organophosphorus scale and corrosion inhibitor chelating agent

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Keywords:

Organophosphorus scale and corrosion inhibitor chelating agent

Detailed introduction

2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt (PBTCA·Na ₄ )

CAS No.40372-66-5

Molecular formula C₇H₇O₉P·Na₄

Relative molecular mass: 358

Structural formula:

Performance and Applications:

PBTCA·Na ₄ It has a low phosphorus content, and its structural features—comprising both phosphonic acid and carboxylic acid groups—endow it with excellent scale‑inhibition and corrosion‑inhibition performance, surpassing that of commonly used agents. Organophosphonic acid , particularly at high temperatures, its scale-inhibition performance is far superior to that of commonly used agents. Organophosphonic acid It can enhance the solubility of zinc, exhibits excellent chlorine‑resistant oxidation performance, and demonstrates good synergistic compatibility when formulated in combination. The solid form is hygroscopic.

PBTCA·Na ₄ It finds wide application in the formulation of high-efficiency scale inhibitors and corrosion inhibitors, exhibits excellent performance, and serves as an outstanding stabilizer for zinc salts.

PBTCA·Na ₄ It is widely used as a corrosion inhibitor and scale suppressant in circulating cooling water systems and oilfield water‑injection systems, and is particularly well suited for formulation with zinc salts and copolymers. It can be employed in high‑temperature, high‑hardness, high‑alkalinity applications, as well as in situations requiring high cycles of concentration. In the detergent industry, it can serve as… Chelating agent and metals Cleaning agent 。

Technical Indicators:

item eye	indicate Label
Outside View	Colorless to pale yellow transparent liquid	White crystalline powder
Active ingredient ( With PBTCA Accounting ) %	≥ 30.0	≥ 64.0
Active ingredient ( With PBTC · Na ₄ Accounting ) %	≥ 40.0	≥ 85.0
Total phosphorus content (PO ₄^3- ) %	≥ 10.5	≥ 22.5
pH Value (1% Aqueous solution )	9.5 ~ 10.5	4.0 ~ 6.0
Density (20 °C ) g · centimeter ^-3	≥ 1.35	——
Fe Content ( With Fe Accounting ) mg · L-1	——	≤ 20.0

Instructions for use:

PBTCA·Na ₄ It is typically used in combination with other water treatment agents such as zinc salts, copolymers, organic phosphonates, and azoles. When used alone, the dosage is as follows: 4 ~ 15mg/L。

Packaging and Storage:

PBTCA·Na ₄ Packaged in plastic woven bags lined with polyethylene, with a net weight of per bag. 25kg It can also be determined according to user requirements. Store in a cool, indoor location; shelf life is twelve months.

Security Protection:

PBTCA·Na ₄ It is weakly acidic; observe appropriate personal protective measures during handling, and avoid contact with skin, eyes, etc. If contact occurs, rinse thoroughly with plenty of water.

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