‌EDTA is in the form of white crystalline powder. The following is a detailed description of the form of EDTA:

‌Appearance‌: White odorless and tasteless crystalline powder.
‌Solubility‌: Insoluble in alcohol and general organic solvents, but soluble in cold water (slower speed), hot water, sodium hydroxide, sodium carbonate and ammonia solutions. Its alkali metal salt is soluble in water, and the solubility in water is 0.5g/L (25℃).
‌Melting point‌: The melting point is 240℃ (decomposition), and some people believe that the melting point is 250℃ (decomposition).
In summary, EDTA appears as a white crystalline powder at room temperature and pressure, and has certain physical and chemical properties.

Ethylenediaminetetraacetic acid (EDTA) has a wide range of uses, mainly including:

‌Metal ion chelator‌: It can form stable complexes with a variety of metal ions and is used in chemical analysis and laboratories to eliminate the interference of metal ions on analysis.
‌Food industry‌: As a food additive, it stabilizes certain ingredients in food and prevents food deterioration and discoloration caused by metal ions.
‌Medical field‌: It is used to treat metal poisoning, such as lead poisoning, and chelation therapy is used to excrete toxic metal ions from the body.
‌Cosmetics‌: Stabilize the ingredients in cosmetic formulas.
‌Detergent‌: Remove calcium, magnesium and other ions from hard water to enhance the cleaning effect.
‌Textile printing and dyeing‌: Improve dyeing quality.
‌Agriculture‌: Used for soil improvement and improve fertilizer utilization.
‌Others‌: It can also be used as a stabilizer in water treatment and PCR reactions, etc.

Ethylenediaminetetraacetic acid Chemical Properties
Melting point 250 °C (dec.) (lit.)
Boiling point 434.18°C (rough estimate)
density 1.46 g/cm3 at 20 °C
vapor pressure <0.013 hPa (20 °C)
refractive index n20/D 1.363
Fp >400°C DIN 51758
storage temp. 2-8°C
solubility 3 M NaOH: 100 mg/mL
form crystalline
pka pKa 2 (Uncertain);10.26 (Uncertain)
color White to almost white
Odor Odorless
PH Range 2.5 at 10 g/l at 23 °C
PH 2.5 (10g/l, H2O, 23℃)(slurry)
Water Solubility 0.5 g/L (25 ºC)
λmax λ: 280 nm Amax: ≤0.25
Decomposition 240 °C
Merck 14,3517
BRN 1716295
Stability: Stable. Incompatible with copper, copper alloys, nickel, aluminium, strong oxidizing agents, strong bases
LogP -0.836 (est)
CAS DataBase Reference 60-00-4(CAS DataBase Reference)

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