NITRILOTRIS(METHYLENE TRIPHOSPHONIC ACID)

PRODUCT IDENTIFICATION
CAS NO. 6419-19-8

NITRILOTRISMETHYLENE TRIPHOSPHONIC ACID

EINECS NO.

229-146-5

FORMULA C3H12NO9P3
MOL WT. 299.05
H.S. CODE 2931.90.9043
TOXICITY Oral rat LD50: >90 ml/kg
SYNONYMS Tris(phosphonomethyl)amine; NTF; ATMP;
Amino tris(methanephosphonic acid); Briquest 301-500; Budex 5130; Dequest 2000; Dowell L 37; Ferrofos 509; Masquol P 320; Mayoquest 1320; NTMP; NTPA; Nitrilotrismethylenetriphosphonic acid; Nitrilotris(methylene) Triphosphonic acidr; Nitrilotris(methylphosphonic acid); AMP; ATMP; Aminotrimethylene phosphonic acid; (Nitrilotris(methylene))triphosphonic acid; P,P',P''-(Nitrilotris(methylene))trisphosphonic acid; Other RN: 39470-48-9, 57515-65-8, 80209-58-1, 90735-66-3, 99719-52-5, 103333-74-0, 275797-11-0
SMILES P(CN(CP(O)(O)=O)CP(O)(O)=O)(O)(O)=O

CLASSIFICATION

Phosphonic Acid, Chelating agent, Water treatment

EXTRA NOTES

 Powerful complexing agent

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE

white solid

MELTING POINT 225 C (Decomposes)
BOILING POINT  
SPECIFIC GRAVITY 1.30 - 1.35
SOLUBILITY IN WATER

miscible

AUTOIGNITION  
pH <2 (1% solution)
VAPOR DENSITY 10.3
NFPA RATINGS Health: 3; Flammability: 0; Reactivity: 0

REFRACTIVE INDEX

1.427

FLASH POINT

 

STABILITY Stable under ordinary conditions.

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking

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PubChem Compound Summary - Nitrilotris(methylene)triphosphonic acid

http://www.inchem.org/
The product as manufactured (50% solution) is used exclusively for industrial applications or for formulation. Used as an anti-scaling agent in industrial water cooling. Used as an anti-scaling agent in industrial boilers Used as an anti-scaling or bleach stabilisation agent in formulation into cleaners (industrial and institutional: I & I). In I & I cleaners the concentration is typically at the 0.2-0.5% range. The product is used typically at the 1-5mg/l range. For the first two uses the product is either used as such or reformulated by specialist water treatment companies for specific application purposes.

Local:
Phosphonates derived from phosphorous (phosphonic) acid are employed in the applications of scale Inhibition, sequestration, dispersion and corrosion inhibition in addition to the main applications of agricultural chemicals such as fertilizers, pesticides, and soil conditioners. Phosphonates offer a wide range of sequestrants to control metal ions in aqueous systems. By forming stable water soluble complexes with multivalent metal ions, phosphonates prevent undesired interaction by blocking normal reactivity of metal ions. This ability contributes to function as threshold industrial water treatment and metal treatment processes (antiscalants, corrosion inhibitors, chelants, sludge conditioners, pulp bleachings, deflocculants, dispersants, metal cleaners, electroplating and crystal growth modifiers). Phosphonates are also used in manufacturing detergents, cosmetics and personal care products for special functions such as low levels iron control, stain removal, bleach stabilization, peroxide stabilization and anti-encrustation. Phosphonates existing in various compounds as acids or salts are marketed in the form of concentrated solutions.

 

List of Aminotrimethylene phosphonic acid salts

  • Aminotrimethylene phosphonic acid pentasodium salt (CAS RN: 2235-43-0)
  • Aminotrimethylene phosphonic acid hydrochloride (CAS RN: 20592-85-2)
  • Aminotrimethylene phosphonic acid potassium salt (CAS RN: 27794-93-0)
  • Aminotrimethylene phosphonic acid ammonium salt (CAS RN: 34274-28-7)
  • Aminotrimethylene phosphonic acid hexapotassium salt (CAS RN: 40588-62-3)
  • Aminotrimethylene phosphonic acid zinc salt (CAS RN: 68413-74-1)
  • Aminotrimethylene phosphonic acid triammonium salt (CAS RN: 72333-13-2)
  • Aminotrimethylene phosphonic acid pentapotassium salt (CAS RN: 94021-26-8)
  • Aminotrimethylene phosphonic acid tetraammonium salt (CAS RN: 94021-27-9)
  • Aminotrimethylene phosphonic acid hexaammonium salt (CAS RN: 94021-28-0)
SALES SPECIFICATION (50% SOLUTION)

APPEARANCE

clear liquid

ACTIVE MATTER

50.0% min

CHLORIDE

1.0% max

IRON

30ppm max

COLOR, APHA

150 max

TRANSPORTATION
PACKING 260kgs in drum
HAZARD CLASS 8 (Packing Group: III )
UN NO.

1760

SAFETY INFORMATION

HAZARD OVERVIEW

Corrosive. May cause central nervous system effects. May cause cardiac disturbances. Causes eye and skin burns. May cause severe respiratory tract irritation with possible burns. May cause severe digestive tract irritation with possible burns. Target Organs: Central nervous system, cardiovascular system.

GHS

 
SIGNAL WORD Danger

PICTOGRAMS

HAZARD STATEMENTS

H314  Causes severe skin burns and eye damage
H318  Causes serious eye damage

PRECAUTIONARY STATEMENTS

P301 + P330 + P331  IF SWALLOWED: rinse mouth. Do NOT induce vomiting
P280  Wear eye protection/face protection
P305 + P351 + P338:  IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
P310  Immediately call a POISON CENTER or doctor/physician
EC DIRECTIVES

 
HAZARD CODES

C Corrosive

RISK PHRASES

34  Causes burns.

SAFETY PHRASES

26  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
36/37/39  Wear suitable protective clothing, gloves and eye/face protection.
45  In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
GENERAL DESCRIPTION OF CHELATING AGENT
Chelation is a chemical combination with a metal in complexes in which the metal is part of a ring. Organic ligand is called  chelator or chelating agent, the chelate is a metal complex. The larger number of ring closures to a metal atom is the more stable the compound. This phenomenon is called the chelate effect; it is generally attributed to an increase in the thermodynamic quantity called entropy that accompanies chelation. The stability of a chelate is also related to the number of atoms in the chelate ring. Monodentate ligands which have one coordinating atom like H2O or NH3 are easily broken apart by other chemical processes, whereas polydentate chelators, donating multiple binds to metal ion, provide more stable complexes. Chlorophyll, green plant pigment, is a chelate that consists of a central magnesium atom joined with four complex chelating agent (pyrrole ring). The molecular structure of the chlorophyll is similar to that of the heme bound to proteins to form hemoglobin, except that the latter contains iron(II) ion in the center of the porphyrin. Heme is an iron chelate. Chelation is applied in metal complex chemistry, organic and inorganic chemistry, biochemistry, and environment protection. It is used in chemotherapeutic treatments for metal poisoning. Chelating agents offers a wide range of sequestrants to control metal ions in aqueous systems. By forming stable water soluble complexes with multivalent metal ions,  chelating agents prevent undesired interaction by blocking normal reactivity of metal ions. EDTA, ethylenediaminetetraacetate (hexadentating), is a good example of common chelating agent which have nitrogen atoms and short chain carboxylic groups. The sodium salt of EDTA is used as an antidote for metal poisoning, an anticoagulant, and an ingredient in a variety of detergents.  Chelating agents are important in the field of soap, detergents, textile dyeing, water softening, metal finishing and plating, pulp and paper, enzyme deactivation, photo chemistry, and bacteriocides.
PRICE INFORMATION