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Trichloroacetic acid

Catalog No. 91228 Name Sigma Aldrich
CAS Number 76-03-9 Website http://www.sigmaaldrich.com
M. F. C2HCl3O2 Telephone 1-800-521-8956
M. W. 163.38714 Fax
Purity ≥99.5% (T) Email
Storage Chembase ID: 92076

SYNONYMS

Title
三氯乙酸
IUPAC name
trichloroacetic acid
IUPAC Traditional name
trichloroacetic acid
Synonyms
TCA

DATABASE IDS

Beilstein Number 970119
MDL Number MFCD00004177
EC Number 200-927-2
PubChem SID 24889459
CAS Number 76-03-9

PROPERTIES

Antion Traces chloride (Cl-): ≤30 mg/kg
Antion Traces nitrate (NO3-): ≤20 mg/kg
Antion Traces phosphate (PO43-): ≤10 mg/kg
Antion Traces sulfate (SO42-): ≤100 mg/kg
Cation Traces Al: ≤5 mg/kg
Cation Traces As: ≤0.1 mg/kg
Cation Traces Ba: ≤5 mg/kg
Cation Traces Bi: ≤5 mg/kg
Cation Traces Ca: ≤10 mg/kg
Cation Traces Cd: ≤5 mg/kg
Cation Traces Co: ≤5 mg/kg
Cation Traces Cr: ≤5 mg/kg
Cation Traces Cu: ≤5 mg/kg
Cation Traces Fe: ≤5 mg/kg
Cation Traces K: ≤50 mg/kg
Cation Traces Li: ≤5 mg/kg
Cation Traces Mg: ≤5 mg/kg
Cation Traces Mn: ≤5 mg/kg
Cation Traces Mo: ≤5 mg/kg
Cation Traces Na: ≤50 mg/kg
Cation Traces Ni: ≤5 mg/kg
Cation Traces Pb: ≤5 mg/kg
Cation Traces Sr: ≤5 mg/kg
Cation Traces Zn: ≤5 mg/kg
Ignition Residue ≤0.05%
Impurities insoluble matter, passes filter test
λ 0.5 M in H2O
Linear Formula Cl3CCOOH
Product Line BioUltra
Purity ≥99.5% (T)
Absorption Wavelength λ: 260 nm Amax: 1.60
Absorption Wavelength λ: 280 nm Amax: 0.15
Boiling Point 196 °C(lit.)
Density 1.62 g/mL at 25 °C(lit.)
Flash Point >113 °C
Flash Point >235.4 °F
Melting Point 54-58 °C(lit.)
pH <1.0 (25 °C, 0.5 M in H2O)
Refractive Index n20/D 1.62(lit.)
Solubility H2O: soluble0.5 M at 20 °C, clear, colorless
Vapor Density <1 (vs air)
Vapor Pressure 1 mmHg ( 51 °C)
GHS Pictograms GHS05
GHS Pictograms GHS09
GHS Signal Word Danger
GHS Hazard statements H314-H410
European Hazard Symbols Corrosive Corrosive (C)
European Hazard Symbols Nature polluting Nature polluting (N)
MSDS Link Download
GHS Precautionary statements P273-P280-P305 + P351 + P338-P310-P501
RID/ADR UN 1839 8/PG 2
Risk Statements 35-50/53
RTECS AJ7875000
Personal Protective Equipment 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
Safety Statements 26-36/37/39-45-60-61
Hazard Class 8
UN Number 1839
Packing Group 2
German water hazard class 2

DETAILS

Description (English)
Application
Traditionally used to precipitate protein. Has been used to determine protein concentration by quantitative precipitation. Used as decalcifier and fixative in microscopy.
Other Notes
Concentration of protein by quantitative precipitation1; Cytochemical demonstration of DNA with a thiazine dye2
Description (简体中文)
Application
传统上用于沉淀蛋白质。用于通过定量沉淀测定蛋白质浓度。用作脱钙剂和显微镜样品的固定剂。
Other Notes
Concentration of protein by quantitative precipitation1; Cytochemical demonstration of DNA with a thiazine dye2

REFERENCES