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Nitrilotriacetic acid

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CAS:139-13-9
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CAS:139-13-9
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  • Nitrilotriacetic acid
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  • CAS:139-13-9
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  • CAS:139-13-9
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  • 2023-10-09
  • CAS:139-13-9
  • Min. Order: 1KG
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Nitrilotriacetic acid Basic information
Product Name:Nitrilotriacetic acid
Synonyms:nitrilo-2,2’,2’’-triaceticacid;Nitrilortiaceticacid;nitrilotri-aceticaci;nitrilotris(methylenecarboxylicacid);Noname;titriplexi;tri(carboxymethyl)amine;Triglycolamidicacid
CAS:139-13-9
MF:C6H9NO6
MW:191.14
EINECS:205-355-7
Product Categories:Organics;EDTA
Mol File:139-13-9.mol
Nitrilotriacetic acid Structure
Nitrilotriacetic acid Chemical Properties
Melting point 245 °C (dec.)(lit.)
Boiling point 326.86°C (rough estimate)
density 1.5784 (rough estimate)
vapor pressure 0-0Pa at 20-25℃
refractive index 1.4860 (estimate)
Fp 100 °C
storage temp. 2-8°C
solubility 0.1 M NaOH: 0.1 M at 20 °C, clear, colorless
form Powder
pka3.03, 3.07, 10.70(at 20℃)
color White
Water Solubility Insoluble. <0.01 g/100 mL at 23 ºC
λmaxλ: 260 nm Amax: 1.5
λ: 280 nm Amax: 0.05
Merck 14,6579
BRN 1710776
LogP-3.81 at 25℃
CAS DataBase Reference139-13-9(CAS DataBase Reference)
NIST Chemistry ReferenceNitrilotriacetic acid(139-13-9)
IARC2B (Vol. 48, 73) 1999
EPA Substance Registry SystemNitrilotriacetic acid (139-13-9)
Safety Information
Hazard Codes Xn,T
Risk Statements 22-36-40-36/37/38-45-20/21/22
Safety Statements 26-36/37-45-36/37/39-53
RIDADR 2811
WGK Germany 2
RTECS AJ0175000
21
TSCA Yes
HazardClass 8
PackingGroup II
HS Code 29224995
Hazardous Substances Data139-13-9(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 1100 mg/kg
MSDS Information
ProviderLanguage
Nitrilotriacetic acid English
SigmaAldrich English
ACROS English
ALFA English
Nitrilotriacetic acid Usage And Synthesis
Chemical PropertiesNitrilotriacetic acid, also known as NTA, is a white crystalline powder. It can dissolve in ammonia and alkali solutions while being slightly soluble in hot water. However, it is insoluble in water and most organic solvents. NTA can form mono-, di-, and tribasic salts, all of which are soluble in water. Combustible. 70% biodegradable.
UsesUsed in sequestration of metals; chelometric analysis.
UsesNitrilotriacetic acid is a chelating agent which forms coordination compounds with metal ions. Nitrilotriacetic acid is used in complexometric titrations and as well as for protein isolation and purification in the His-tag method. This compound is a contaminant of emerging concern (CECs).
DefinitionChEBI: Nitrilotriacetic acid is a tricarboxylic acid and a NTA. It has a role as a nephrotoxic agent and a carcinogenic agent. It is a conjugate acid of a nitrilotriacetate(1-).
PreparationThe synthesis of nitrilotriacetic acid involves the following steps:
Chloroacetic acid is reacted with sodium hydroxide to produce sodium chloroacetate.
Sodium chloroacetate then reacts with ammonium chloride to form sodium aminotriacetate.
The resulting sodium aminotriacetate is acidified to obtain nitrilotriacetic acid.
Synthesis Reference(s)The Journal of Organic Chemistry, 15, p. 46, 1950 DOI: 10.1021/jo01147a008
General DescriptionOdorless white solid. Sinks in and mixes with water.
Air & Water ReactionsWater Insoluble.
Reactivity ProfileNitrilotriacetic acid is incompatible with strong oxidizers, aluminum, copper, copper alloy and nickel. Nitrilotriacetic acid is also incompatible with strong bases.
HazardPossible carcinogen.
Health HazardToxicity and health hazard of these compounds are low. Contact with eyes causes irritation.
Fire HazardFlash point data for Nitrilotriacetic acid are not available; however, Nitrilotriacetic acid is probably combustible.
Flammability and ExplosibilityNon flammable
Biochem/physiol ActionsNitrilotriacetic (NTA) has the ability to link with histidine side chain of proteins. It can be used in fluorescent labelling, hexahistidine (His6)-tagged proteins for purification and surface immobilization.
Safety ProfileConfirmed carcinogen with experimental carcinogenic and neoplastigenic data. Poison by intraperitoneal route. Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of NOx,.
Potential ExposureNitrilotriacetic acid (NTA) was used as a phosphate replacement in laundry detergents in the late 1960s. In 1971, the use of NTA was discontinued. The possibility of resumed use arose in 1980. NTA is now used in laundry detergents in states where phosphates are banned. NTA is also used as a boiler feed-water additive at a maximum use level of 5 ppm of trisodium salt. Currently, the remaining nondetergent uses of NTA are for water treatment, textile treatment; metal plating and cleaning; and pulp and paper processing.
CarcinogenicityNitrilotriacetic acid is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals.
ShippingUN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.
Purification MethodsCrystallise it from water and dry it at 110o. [Beilstein 4 IV 2441.]
IncompatibilitiesDust may form explosive mixture with air. Compounds of the carboxyl group react with all bases, both inorganic and organic (i.e., amines) releasing substantial heat, water and a salt that may be harmful. Incompatible with arsenic compounds (releases hydrogen cyanide gas), diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides (releasing heat, toxic and possibly flammable gases), thiosulfates and dithionites (releasing hydrogen sulfate and oxides of sulfur). Attacks aluminum, copper, copper alloy and nickel.
Waste DisposalDissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.
Tag:Nitrilotriacetic acid(139-13-9) Related Product Information
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