Thioglycolic acid, solution 80% w/w, EssentQ®

- Synonyms: Mercaptoacetic acid
- C2H4O2S
- M = 92,12 g/mol
- CAS [68-11-1]
- EINECS-No.: 200-677-4
- Density: 1,27 g/cm3
- Solub. in water: (20 ºC): miscible
- Melting point: -15 - -10 ºC
- Flash pt. 126 ºC (anhydrous substance)
- Vapour pressure: (20 ºC) 0,1 hPa (anhydrous substance)
- Refraction index: (n 20 ºC/D) 1,5030
- LD 50 (oral, rat): 73 mg/kg (anhydrous substance)
- EC-Index-No.: 607-090-00-6
- ADR: 8 C3 II UN 1940
- IMDG: 8 II UN 1940
- IATA/ICAO: 8 II UN 1940
- GHS-signal word: Danger
- GHS-H sentences: H301 - H311 - H331 - H314
- GHS-P sentences: P260 - P301+P310 - P303+P361+P353 - P305+P351+P338 - P405 - P501a
- Tariff number: 2930 90 99 99
- Applications: analytical chemistry, laboratory reagent, reagent for metals detection (iron, tin, silver, molybdenum), for spectrophotometric determinations (for determination of: palladium).

SPECIFICATIONS
assay (iodometric): 79 - 82 %
density (20º/4º): 1,26 - 1,28
copper (Cu): max. 5 ppm
heavy metals (as Pb): max. 0,001 %
iron (Fe): max. 5 ppm
lead (Pb): max. 5 ppm
nickel (Ni): max. 5 ppm
sensitivity to iron: passes test
residue on ignition: max. 0,03 %
water (K.F.): 18 - 21 %