2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt (PBTCA·Na4)

CAS No.: 40372-66-5
Molecular Formula: C₇H₇O₉P·Na₄
Relative Molecular Mass: 358
Structural Formula:

Performance and Applications

PBTCA·Na₄ has low phosphorus content. Due to its structural characteristics of phosphonic acid and carboxylic acid, it has excellent scale and corrosion inhibition performance, superior to common organophosphonic acids. Especially at high temperature, its scale inhibition performance is far better than common organophosphonic acids. It can improve the solubility of zinc, has good chlorine oxidation resistance, and excellent compounding synergy. The solid is easy to absorb moisture.

PBTCA·Na₄ has a wide range of applications and superior performance in the compounding of high-efficiency scale and corrosion inhibitors, and is also an excellent stabilizer for zinc salts.

PBTCA·Na₄ is widely used in corrosion and scale inhibition of circulating cooling water systems and oilfield water injection systems, especially suitable for compounding with zinc salts and copolymers. It can be used in occasions with high temperature, high hardness, high alkalinity and operation under high concentration cycles. In the washing industry, it can be used as a chelating agent and metal cleaning agent.

Technical Specifications

Usage Method

PBTCA·Na₄ is usually used in combination with other water treatment agents such as zinc salts, copolymers, organophosphorus, azoles, etc. If used alone, the dosage is 4~15mg/L.

Packaging and Storage

PBTCA·Na₄ is packed in plastic woven bags lined with polyethylene bags, with a net weight of 25kg per bag, or customized according to user requirements. Store in a cool indoor place. The shelf life is twelve months.

Safety Protection

PBTCA·Na₄ is weakly acidic. Pay attention to labor protection during operation. Avoid contact with skin, eyes, etc. In case of contact, rinse immediately with plenty of clean water.