91230

Trichloroacetic acid

ACS reagent, for the determination of Fe in blood according to Heilmeyer, ≥99.5%

• Sinónimos: TCA
• Fórmula lineal: Cl₃CCOOH
• Número de CAS: 76-03-9
• Peso molecular: 163.39
• Beilstein/REAXYS Number: 970119
• EC Number: 200-927-2
• MDL number: MFCD00004177
• UNSPSC Code: 12352100
• PubChem Substance ID: 57653429
• NACRES: NA.21

Propiedades

• grade: ACS reagent
• Quality Level: 200
• vapor density: <1 (vs air)
• vapor pressure: 1 mmHg ( 51 °C)
• assay: ≥99.5% (T); ≥99.5%
• form: flakes
• quality: for the determination of Fe in blood according to Heilmeyer
• ign. residue: ≤0.03% (as SO₄)
• refractive index: n20/D 1.62 (lit.)
• bp: 196 °C (lit.)
• mp: 54-58 °C (lit.)
• solubility: water: soluble 81.7 g/L at 20 °C
• density: 1.62 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤10 mg/kg; nitrate (NO₃^-): ≤20 mg/kg; phosphate (PO₄^3-): ≤5 mg/kg; sulfate (SO₄^2-): ≤200 mg/kg
• cation traces: Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤50 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Na: ≤50 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• functional group: carboxylic acid; chloro
• SMILES string: OC(=O)C(Cl)(Cl)Cl
• InChI: 1S/C2HCl3O2/c3-2(4,5)1(6)7/h(H,6,7)
• InChI key: YNJBWRMUSHSURL-UHFFFAOYSA-N

Descripción

General description

Trichloroacetic acid (TCA) is a chlorinated acetic acid. It is one of the major metabolites of trichloroethylene (TCE).

Application

Trichloroacetic acid may be used in the following studies:

• Estimation of phosphorus in various biological samples (serum, urine and stool ash solutions).
• Elimination of acid-soluble and lipid phosphorous during the determination of deoxyribonucleic acid, ribonucleic acid and phosphoproteins in animal tissues.
• Preparation of 2-methyl-4-nitroanilinium trichloroacetate trichloroacetic acid (2M4NATCA) crystals.

10% Trichloroacetic acid may be employed for the preparation of radioactive proteins.

Tradicionalmente usado para precipitar proteínas. Se ha utilizado para determinar la concentración de proteína por gravimetría. Usado como descalcificador y fijador en microscopía.

Other Notes

Protein denaturant

Información de seguridad

• pictograms: GHS05,GHS09
• signalword: Danger
• hcodes: H314,H410
• pcodes: P260 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1A
• Storage Class: 8B - Non-combustible corrosive hazardous materials
• wgk_germany: WGK 2
• flash_point_f: >235.4 °F - closed cup
• flash_point_c: > 113 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges