Product Identification & Overview
ZEELCHEM® 121 PBTC 50% is a high-performance chemical solution formulated for high-chlorine cooling water towers, boilers, and industrial circulation systems. It plays a critical role in optimizing industrial water system performance, preventing equipment downtime, and protecting heat exchange surfaces.
- Product Code: ZEELCHEM® 121
- Chemical Name: 2-Phosphonobutane-1,2,4-Tricarboxylic Acid
- Common Name: PBTC / PBTC 50%
- CAS No.: 37971-36-1
- Molecular Formula: C7H11O9P
- Molecular Weight: 270.13 g/mol
- Product Category: Phosphonates
- Supplier: ZEEL PRODUCT (India)
What is PBTC 50%?
PBTC 50% is a specialized phosphonates engineered for chlorine-stable scale & corrosion inhibitor. Its principal mechanism involves interacting with dissolved minerals, suspended particulates, or microbial cells in water systems to maintain clean operational surfaces.
Key Benefits & Performance Characteristics
- High-efficiency performance for chlorine-stable scale & corrosion inhibitor
- Protects industrial heat exchangers, boilers, and piping against mineral deposits
- Excellent chemical stability across wide temperature and pH ranges
- Reduces maintenance costs, chemical consumption, and operational downtime
- Formulated to strict ISO 9001:2015 B2B industrial standards
PBTC 50% Technical Specifications
Below are the technical specifications for ZEELCHEM® 121 PBTC 50%:
| Parameter | Specification |
|---|---|
| Product Name | PBTC 50% |
| Brand | ZEELCHEM® |
| Product Code | ZEELCHEM® 121 |
| Chemical Name | 2-Phosphonobutane-1,2,4-Tricarboxylic Acid |
| CAS Number | 37971-36-1 |
| Appearance | Clear, colorless to pale yellow liquid |
| Active Content | 50.0% Min |
| pH Value | 1.0–2.0 |
| Density | 1.27–1.30 g/cm³ |
| Solubility | Completely soluble in water |
| Country of Origin | India |
PBTC 50% Applications
PBTC 50% is used across multiple industrial water treatment applications:
- High-Chlorine Cooling Towers: Maintains scale inhibition without decomposing in the presence of chlorine or bromine biocides.
- High-Hardness Industrial Systems: Prevents calcium carbonate scaling under high alkalinity and high temperature.
- Zinc Stabilized Programs: Provides cathodic corrosion protection when formulated with zinc salts.
PBTC 50% Dosage & Dosing Guidance
The required dosage of PBTC 50% depends on feed water quality, operating temperature, system pressure, and total dissolved solids (TDS).
Typical Application Dosage Ranges
| Application Area | Typical Dosage Range* |
|---|---|
| Cooling Water Towers | 5–15 mg/L (ppm) |
| Boiler Water Treatment | 10–30 mg/L (ppm) |
*Indicative dosage ranges. Final dosage should be established through water analysis and technical evaluation.
Dosing Calculation Formula
Use our interactive B2B Chemical Dosing Calculator to compute precise dosing pump settings.
Compatibility & Synergy
Exhibits superior synergy with polymers like Terpolymer and Polyacrylic Acid.
PBTC vs HEDP
PBTC 50% vs HEDP 60%: PBTC combines phosphonic and carboxylic acid groups, offering much higher chlorine stability than HEDP in oxidizing biocide systems.
Packaging, Storage & Handling
Packaging Available: Supplied in 50 kg HDPE drums, 250 kg HDPE drums, 1250 kg IBC totes, and ISO tank containers.
Storage & Handling: Store in a cool, dry, well-ventilated location in tightly closed original containers. Avoid exposure to direct sunlight and extreme temperatures. Refer to the official SDS for handling precautions.
PBTC 50% Manufacturer & Supplier in India
ZEEL PRODUCT, under the ZEELCHEM® brand, manufactures and supplies PBTC 50% for industrial water treatment applications across India and international export markets.
Bulk Enquiries
Product: ZEELCHEM® 121 PBTC 50%
Location: Vadodara, Gujarat, India
Documents Available: Certificate of Analysis (COA), Technical Data Sheet (TDS), and Safety Data Sheet (SDS)
PBTC 50% Frequently Asked Questions (FAQs)
What is PBTC 50%?
PBTC 50% is 2-Phosphonobutane-1,2,4-Tricarboxylic Acid, a chlorine-stable scale and corrosion inhibitor.
What is the CAS number of PBTC?
The CAS number of PBTC is 37971-36-1.
Is PBTC stable with chlorine?
Yes, PBTC exhibits exceptional chemical stability in the presence of chlorine and oxidizing biocides.
Where can I buy PBTC 50% in India?
PBTC 50% is supplied by ZEEL PRODUCT under the ZEELCHEM® 121 brand.