Citric acid / Citric acid / 2-hydroxypropionic acid / Citric acid

English name: Citric acid monohydrate; 1,2,3-Tricarboxy-2-hydroxy-propane; Hydroxy-1,2,3-propanetricarboxylic acid; β-Hydroxytricarballylic acid

Other names: citric acid; 2-hydroxypropionic acid
CAS number: 5949-29-1
C6H8O7 · H2O = 210.14

Level: GR

Content: ≥99.8%

Oxalate: ≤0.05%

Clarity test: qualified

Calcium: ≤0.002%

Phosphate: ≤0.001%

Sulfate: ≤0.002%

Chloride: ≤0.0005%

Lead: ≤0.0005%

Water insoluble matter: ≤0.002%

Iron: ≤0.0003%

Copper: ≤0.0005%

Easy carbonization material: qualified

Burning residue: ≤0.01%

Properties: colorless transparent rhombic crystals or white particles, odorless, sour, dry in air or heated to 40-50 ℃ to become anhydrous, slightly deliquescent in humid air, soft at 75 ℃, 100 Melting at ℃, easily soluble in water, soluble in alcohol. Density: 1.54; melting point: 135-152 ℃; flash point: 173.9 ℃
Uses: biochemical research. Verification of bismuth, nitrite, oxygen and water, determination of aluminum, copper, mercury, nickel, oxygen and thorium, used as a sequestering agent, removal of trace metals, preparation of buffer solution, determination of blood potassium.
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