Chelating Agents
REACH
PBTC sodium salt
CAS Number
40372-66-5
EC Number
254-894-4
What is PBTC sodium salt?
PBTC sodium salt (CAS 40372-66-5) is the neutralized salt form of 2-phosphonobutane-1,2,4-tricarboxylic acid, a ready-to-use aqueous solution for industrial water and process chemistry.
Where is PBTC sodium salt used?
- Cooling water and boiler water treatment: prevents calcium carbonate scale
- Heat exchange surfaces: prevents calcium sulfate and calcium phosphate scale deposition, extending equipment service life
- Metalworking and industrial cleaning: sequesters hardness ions
- Aqueous process fluids: buffers pH to improve stability and performance
- Textile processing: controls metal ion interference during dyeing and finishing for consistent color results
- Paper manufacturing: inhibits scale buildup in process water circuits and protects equipment from corrosion
- It functions as a scale inhibitor, corrosion inhibitor, and chelating agent.
Commercial specifications
- Active content concentrations commonly in the range of 50% solids
- Bulk supply in IBC containers and drums
Other Names (Synonyms)
2-phosphonobutane-1,2,4-tricarboxylic acid sodium salt|1,2,4-butanetricarboxylic acid, 2-phosphono-, sodium salt (1:?)|Pbtc.na4|(2S)-2-phosphonobutane-1,2,4-tricarboxylic acid|PBTC (2-Phosphonobutane-1,2,4-tricarboxylic acid) sodium salt
How is PBTC sodium salt classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H302 Harmful if swallowed
H319 Causes serious eye irritation
H332 Harmful if inhaled
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.