Merck
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91228

Sigma-Aldrich

Trichloroacetic acid

BioUltra, ≥99.5% (T)

Synonym(s):
TCA
Linear Formula:
Cl3CCOOH
CAS Number:
Molecular Weight:
163.39
Beilstein:
970119
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.25

densidade de vapor

<1 (vs air)

Nível de qualidade

200

pressão de vapor

1 mmHg ( 51 °C)

linha de produto

BioUltra

teor

≥99.5% (T)

forma

crystals
flakes

Impurezas

insoluble matter, passes filter test

resíduo de ignição

≤0.05%

índice de refração

n20/D 1.62 (lit.)

pH

<1.0 (25 °C, 0.5 M in H2O)

pb

196 °C (lit.)

pf

54-58 °C (lit.)

solubilidade

H2O: 0.5 M at 20 °C, clear, colorless

densidade

1.62 g/mL at 25 °C (lit.)

traços de ânion

chloride (Cl-): ≤30 mg/kg
nitrate (NO3-): ≤20 mg/kg
phosphate (PO43-): ≤10 mg/kg
sulfate (SO42-): ≤100 mg/kg

traços de cátion

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
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
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

OC(=O)C(Cl)(Cl)Cl

λ

0.5 M in H2O

Absorção UV

λ: 260 nm Amax: 1.60
λ: 280 nm Amax: 0.15

InChI

1S/C2HCl3O2/c3-2(4,5)1(6)7/h(H,6,7)

InChI key

YNJBWRMUSHSURL-UHFFFAOYSA-N

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Descrição geral

Trichloroacetic acid (TCA) is derived from Trichloroethylene (TCE) metabolism. It is used as an acid decalcifying agent. TCA is used as a fixative for nuclear staining and protein precipitation.

Aplicação

Trichloroacetic acid (TCA) has been used:
  • to determine its effect on avian embryos during an exposure window encompassing cardiac specification
  • as a cell fixative
  • to terminate the O-acetylserine (thiol)lyase (OASTL) enzymatic assay
  • for the precipitation of acidic ribosomal proteins (RPs)

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

Outras notas

Concentration of protein by quantitative precipitation; Cytochemical demonstration of DNA with a thiazine dye

Pictogramas

CorrosionEnvironment

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1A

Código de classe de armazenamento

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 2

Ponto de fulgor (ºF)

235.4 °F - closed cup

Ponto de fulgor (ºC)

> 113 °C - closed cup

Equipamento de proteção individual

Eyeshields, Faceshields, Gloves, type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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