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Home > Products > EDTA Chelants & Phosphonate Sequestrants > PBTC, CAS Number 37971-36-1

PBTC, CAS Number 37971-36-1

PBTC, CAS Number 37971-36-1

Payment Type: L/C,T/T,D/P
Incoterm: FOB,CFR,CIF
Min. Order: 2000 Kilogram
Delivery Time: 5 Days

Basic Info

    Model No.: PBTC

Additional Info

    Packaging: in 250 Kgs PE drums

    Productivity: 30000MT/a

    Transportation: Ocean,Land

    Place of Origin: China

    Supply Ability: 30000MT/a

    Certificate: ISO9001

Product Description


2-Phosphonobutane-1,2,4-Tricarboxylic Acid

CAS No. 37971-36-1

Molecular Weight: 270.13

EINECS No. 253-733-5

Molecular Formula: C7H11O9P


PBTC is an organophosphonate exhibiting multifunctional properties of sequestration, deflocculation and threshold inhibition. In systems that utilize oxidizing biocides such as chlorine and bromine, PBTC exhibits superior stability under oxidizing conditions compared to other organophosphonates. PBTC is the preferred scale control agent in high hardness water due to its high Ca tolerance compared to other phosphonates.

PBTC is used as scale inhibitor in cooling water systems, antiscalants for reverse osmosis system, especially in high water hardness conditions. Effective against CaCO3 and CaSO4 scales. PBTC is also an effective additive for industrial & institutional cleaners, laundry & dish wash detergents.


Active Content: 49 ~ 51%

Phosphorous acid(as PO3): ≤ 0.50%

Phosphoric acid(as PO4): ≤ 0.20%

pH(1% solution): ≤ 2.0

Density(20℃), g/cm3: 1.27 ~ 1.30

Chloride(as Cl): ≤ 10ppm

Iron (as Fe): ≤ 10ppm

Appearance: slight yellow clear liquid.

2-Phosphonobutane-1,2,4-Tricarboxylic Acid

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Product Categories : EDTA Chelants & Phosphonate Sequestrants

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