Product Name

2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt CAS 40372-66-5

Basic Information

CAS No:40372-66-5
Molecular Formula:C7H7Na4O9P
Molecular Weight:358.058
Remarks:Factory direct sales

2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt Properties




White Powder



Melting point/℃198-199
density(Kg/m³)1800(rough estimate)
refractive index1.460
Flash point/℃283.5
storage temproom temperature

2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt USES

PBTC•Na4 has low content of phosphorus, it has good scale and corrosion inhibition, because of its structural properties of phosphonic acid and carboxylic acid. Its scale inhibition under high temperature is superior to common organic phosphonic acid.

PBTC•Na4 can improve the solubility of zinc, and has good chlorine oxidation tolerance and good composite synergy. Its solid is easy to absorb moisture.

PBTC•Na4 is the most widely used in the combination of high efficiency scale and corrosion inhibitor.

2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt Packaging

Packing: 25Kg,100Kg,200Kg,1000Kg/Drum

2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt storage

  1. Store barreled products in a cool, ventilated warehouse; keep away from

fire and heat sources. The warehousing temperature does not exceed 30 ℃, and the relative

humidity does not exceed 80%. Keep the container sealed; products should be stored separately

from oxidants, reducing agents, etc., and should not be mixed; be equipped with fire-fighting

equipment of appropriate variety and quantity; the storage area should be equipped with

equipment for emergency treatment of leakage and suitable containment materials;

  1. Store in a special storage tank; keep away from fire and heat sources; there is fire-fighting foam

for a fire emergency, and the tank area is equipped with equipment for the emergency treatment of


  1. Shelf life: The shelf life of this product is 6 months.

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