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Trichloroacetic acid

Trichloroacetic acid chemical structure
CAS Number76-03-9
FormulaN/A
Mol. Weight163.39 g/mol

What is Trichloroacetic acid?

Trichloroacetic acid is a chemical compound with CAS number 76-03-9. It is used in various industrial and research applications.

Applications

Traditionally used to precipitate protein. Has been used to determine protein concentration by quantitative precipitation. Used as decalcifier and fixative in microscopy.

Specifications

Linear Formula

Cl3CCOOH

Molecular Weight

163.39 g/mol

Grade

ACS reagent

Assay/Purity

≥99.0%

Impurities

Substances darkened by sulfuric acid, passes test
≤0.01% insoluble matter

Boiling Point

196 °C(lit.)

Density

1.62 g/mL at 25 °C(lit.)

Safety Information

GHS05GHS05
GHS09GHS09
Signal Word

Danger

Hazard Statements

H314-H410

Precautionary Statements

P273-P280-P305 + P351 + P338-P310-P501

Required PPE

Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges

Melting Point

54-58 °C(lit.)

Ignition Residue

≤0.03%

Anion Traces

chloride (Cl-): ≤0.002%
nitrate (NO3-): ≤0.002%
phosphate (PO43-): ≤5 ppm
sulfate (SO42-): ≤0.02%

Cation Traces

Fe: ≤0.001%
heavy metals (as Pb): ≤0.002%

EC Number

200-927-2

WGK Germany

2

Frequently Asked Questions