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91232 Sigma-Aldrich

Trichloroacetic acid

purum p.a., ≥99.0% (T)

Synonym: TCA

  • CAS Number 76-03-9

  • Linear Formula Cl3CCOOH

  • Molecular Weight 163.39

  •  Beilstein Registry Number 970119

  •  EC Number 200-927-2

  •  MDL number MFCD00004177

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Properties

Related Categories Acids, Acids & Bases, Chemical Synthesis, Organic Acids, Synthetic Reagents More...
vapor density   <1 (vs air)
vapor pressure   1 mmHg ( 51 °C)
InChI Key   YNJBWRMUSHSURL-UHFFFAOYSA-N
grade   purum p.a.
assay   ≥99.0% (T)
ign. residue   ≤0.05% (as SO4)
refractive index   n20/D 1.62(lit.)
bp   196 °C(lit.)
mp   54-58 °C(lit.)
solubility   water: soluble81.7 g/L at 20 °C
density   1.62 g/mL at 25 °C(lit.)
cation traces   Ca: ≤50 mg/kg
  Cd: ≤50 mg/kg
  Co: ≤50 mg/kg
  Cu: ≤50 mg/kg
  Fe: ≤50 mg/kg
  K: ≤100 mg/kg
  Na: ≤100 mg/kg
  Ni: ≤50 mg/kg
  Pb: ≤50 mg/kg
  Zn: ≤50 mg/kg

Description

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

Same product — same quality — now Sigma-Aldrich brand

Price and Availability

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 1839 8 / PGII
WGK Germany 
2
RTECS 
AJ7875000
Flash Point(F) 
>235.4 °F
Flash Point(C) 
>113 °C
Protocols & Articles

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