41610

Dimethyl sulfate

≥99.0% (GC), liquid, puriss. p.a.

• Synonim(y): Sulfuric acid dimethyl ester
• Wzór liniowy: (CH₃O)₂SO₂
• Numer CAS: 77-78-1
• Masa cząsteczkowa: 126.13
• NACRES: NA.21
• PubChem Substance ID: 57650074
• UNSPSC Code: 12352100
• EC Number: 201-058-1
• MDL number: MFCD00008416
• Beilstein/REAXYS Number: 635994
• Assay: ≥99.0% (GC)
• Form: liquid

Właściwości

• Nazwa produktu: Dimethyl sulfate, puriss. p.a., ≥99.0% (GC)
• vapor density: 4.3 (vs air)
• Quality Segment: 200
• vapor pressure: 0.7 mmHg ( 25 °C)
• grade: puriss. p.a.
• assay: ≥99.0% (GC)
• form: liquid
• autoignition temp.: 923 °F
• impurities: ≤0.4% free acid (as H₂SO₄)
• ign. residue: ≤0.02%
• refractive index: n20/D 1.386 (lit.), n20/D 1.387
• bp: 188 °C (lit.)
• mp: −32 °C (lit.)
• solubility: ethanol: 0.26 g/mL, clear, colorless, diethyl ether: 1.3 g/5mL, clear, colorless
• density: 1.333 g/mL at 25 °C (lit.)
• cation traces: Ca: ≤5 mg/kg, Cd: ≤1 mg/kg, Co: ≤1 mg/kg, Cr: ≤1 mg/kg, Cu: ≤1 mg/kg, Fe: ≤1 mg/kg, K: ≤20 mg/kg, Mg: ≤1 mg/kg, Mn: ≤1 mg/kg, Na: ≤20 mg/kg, Ni: ≤1 mg/kg, Pb: ≤1 mg/kg, Zn: ≤1 mg/kg
• SMILES string: COS(=O)(=O)OC
• InChI: 1S/C2H6O4S/c1-5-7(3,4)6-2/h1-2H3
• InChI key: VAYGXNSJCAHWJZ-UHFFFAOYSA-N

Opis

General description

Dimethyl sulfate is the dimethyl ester of sulfuric acid. It undergoes hydrolysis to afford monomethyl sulfate. It is found as contaminant in fly ash and in airborne particulate matter generated during the coal combustion processes.[1]

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Informacja o środkach bezpieczeństwa

• pictograms: GHS06,GHS08,GHS05
• signalword: Danger
• hcodes: H301,H314,H317,H330,H341,H350
• pcodes: P202 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Carc. 1B - Eye Dam. 1 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1
• Klasa składowania: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• wgk: WGK 3
• flash_point_f: 181.4 °F - closed cup
• flash_point_c: 83 °C - closed cup
• ppe: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter