描述
– Synonyms: DMSO, Sulfinyl bis(methane), Methylsulfoxide, Methylsulfinylmethane
– C2H6OS
– M = 78,13 g/mol
– CAS [67-68-5]
– EINECS-No.: 200-664-3
– Density: 1,10 g/cm3
– Solub. in water: (20 ºC): miscible
– Melting point: 18,5 ºC
– Boiling point: (33 hPa) 85 – 87 ºC
– Flash pt. 95 ºC
– Ignition temp.: 300 – 302 ºC
– Vapour pressure: (20 ºC) 0,6 hPa
– Refraction index: (n 20 ºC/D) 1,48
– LD 50 (oral, rat): 14500 mg/kg
– GHS-signal word: Warning
– GHS-H sentences: H315 – H319
– GHS-P sentences: P264 – P280 – P305+P351+P338 – P332+P313 – P362+P364 – P337+P313
– Tariff number: 2930 90 98 99
– Applications: analytical chemistry, solvents, synthesis of organic products.
SPECIFICATIONS
assay: min. 99,9 %
Identification IR: passes test
Identification B (USP): passes test
Identification D (EP): passes test
density (20º/20º): 1,100 – 1,104
density (25º/25º): 1,095 – 1,101
refractive index n20/D: 1,478 – 1,480
refractive index n25/D: 1,4755 – 1,4775
acidity: passes test
freezing point: min. 18,3 ºC
total : max. 0,1 %
each unspecified impurity: max. 0,1 %
residue on evaporation: max. 0,01 %
water (K.F.): max. 0,1 %
wavelength:: A (AU)
275 nm: 0,20
285 nm: 0,20
295 nm: 0,20
absorbance ratio 285/275 nm: max. 0,65
absorbance ratio 295/275 nm: max. 0,45
absorbance 270 – 350nm: passes test
#Dimethyl sulfoxide, Pharmpur®, Ph Eur, USP
