PBTC.Na4 CAS 40372-66-5
Sinochem is a leading PBTC.Na4 & 2-Phosphonobutane-1,2,4-Tricarboxylic Acid, Sodium salt supplier. Meanwhile, our firm staffs a team of dedicated technical experts committed to supporting the global development and supply of premium China PBTC.Na4 & 2-Phosphonobutane-1,2,4-Tricarboxylic Acid, Sodium salt solutions.
PBTC.Na4 is the tetrasodium salt of 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC). It functions as a highly effective scale inhibitor specifically engineered for calcium carbonate and calcium phosphate control. Notably, the scale inhibition performance of PBTC.Na4 under high-temperature environments is far superior to that of traditional organic phosphonates.
- Low Phosphorus Content: Due to its unique structural characteristics incorporating both phosphonic acid and carboxylic acid groups, it delivers exceptional scale and corrosion inhibition properties while minimizing environmental phosphorus load.
- Excellent Thermal Stability: Its scale control efficiency at elevated temperatures significantly outperforms commonly used organic phosphonic acids, making it ideal for harsh industrial environments.
- Synergistic Performance: It effectively improves the solubility of zinc salts, exhibits strong resistance to chlorine and other oxidizing biocides, and demonstrates excellent compound synergy.
PBTC•Na4 Description
Name: PBTC.Na4 & 2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt
Molecular Formula: C7H7O9P•Na4
Molecular weight: 358
CAS NO.: 40372-66-5
Density: 1.835g/cm3
Boiling point: 545.2ºC at 760mmHg
Melting point: N/A
Flashing point: 283.5ºC
Properties:
1. PBTC.Na4 has low content of phosphoric, its structure contains both phosphonic acid and carboxylic acid group, which enable its good scale and corrosion inhibition properties. Its scale inhibition property under high temperature is far better than that of organophosph-ines.
2. PBTC.Na4 can improve the solubility of zinc salt, has good chlorine oxidation tolerance and good composite synergy. The solid state is easy deliquescence.
Usage:
1. PBTC.Na4 is a widely used and high effective agent as composite scale and corrosion inhibitor, it is also an excellent stabilizer for zinc salt. PBTC•Na4 is used as scale and corrosion inhibitor in circulating cool water system and oilfield refill water system, especially used together with zinc salt and copolymer. PBTC•Na4 can be used in situations of high temperature, high hardness, high alkaline and high concentration index, PBTC•Na4 is used as chelating agent and metal detergent in lavation fields.
2. PBTC.Na4 is usually used together with zinc salt, copolymer, organophosphine, imidazole and other Water Treatment Chemicals.
Package and Storage:
Liquid: 200L plastic drum, IBC(1000L), customers’ requirement. Storage for ten months in shady room and dry place.
Solid: 25kg/bag, customers’ requirement. Storage for one year in shady room and dry place.
Safety protection: When operating PBTC.Na4, pay attention to labor protection and avoid contact with skin, eyes, etc. After contact, rinse with plenty of water.
About Us: With over many years as a certified PBTC.Na4 & 2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt manufacturer, we combine innovation with stringent production standards to deliver high-performance product.
Hot tags: BAYHIBIT N; AQUACID 101EX; Uniphos 100
Phosphonobutane Tricarboxylic Tetrasodium Technical
| Item | Index | |
| Appearance | Colorless to yellowish transparent liquid | White crystal powder |
| Active content (as PBTCA, % ) | 30.0 min | 64.0 min |
| Active content (as PBTC•Na4, %) | 40.0 min | 85.0 min |
| Total Phosphoric acid (as PO43-)% | 10.5 min | 22.5 min |
| Fe, mg/L | – | 20.0 max |
| PH(1% water solution) | 9.0-12.0 | 4.0-6.0 |
| Density (20℃) g/cm3 | 1.35 min | – |
As a certified PBTC.Na4 & 2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt factory, we adhere to strict quality protocols, with every batch undergoing rigorous testing to ensure consistent efficacy and safety.
2-Phosphonobutane -1,2,4-Tricarboxylic Acid, Sodium salt Applications
- PBTC·Na4 is the most widely used in the compounding of high-efficiency scale and corrosion inhibitors. It is one of the products with the best performance and is also an excellent stabilizer for zinc salts.
- PBTC.Na4 is widely used in the corrosion and scale inhibition of circulating cooling water systems and oil field water injection systems. It is particularly suitable for compounding with zinc salts and copolymers. It can be used in high temperature, high hardness, high alkali, and occasions that require high concentration multiples. It is used as a chelating agent and metal cleaner in the washing industry.
🙋 Frequently Asked Questions (FAQ)
Q1: What makes PBTC.Na4 superior to traditional organophosphonates under high temperatures?
A: PBTC.Na4 contains both phosphonic acid and carboxylic acid functional groups within its molecular structure. This unique architecture provides exceptionally high thermal and chemical stability, preventing it from decomposing easily or forming calcium phosphonate sludges under high temperature, high alkalinity, and high hardness conditions.
Q2: How does PBTC.Na4 exhibit a synergistic effect when formulated with zinc salts?
A: Zinc salts are widely used as corrosion inhibitors but are prone to precipitation at higher pH levels. PBTC.Na4 acts as an excellent stabilizer that drastically increases the solubility of zinc ions in water, keeping them active at the metal surface to form a protective film, thereby greatly enhancing overall corrosion and scale inhibition.
Q3: Is PBTC.Na4 compatible with oxidizing biocides like chlorine?
A: Yes. PBTC.Na4 possesses excellent resistance to chlorine and other oxidizing biocides. Unlike older generations of water treatment agents that degrade quickly when exposed to chlorine, PBTC.Na4 maintains its molecular integrity and scale control efficiency in heavily chlorinated water systems.
Q4: What is the difference between the liquid and solid forms of PBTC.Na4 regarding application?
A: Liquid PBTC.Na4 (40% active content) is commonly preferred for continuous dosing pump systems in industrial cooling towers due to its ease of mixing. Solid PBTC.Na4 (85% active content) is highly concentrated, lowering international shipping costs, but it is highly deliquescent and must be stored in airtight packaging away from moisture.
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