Sulfur dioxide manufacturers and suppliers

Sulfur dioxide suppliers

Properties

Melting point:: -73 °C (lit.)

Boiling point:: -10 °C (lit.)

Density: 1.25 g/mL at 25 °C (lit.)

vapor density: 2.26 (21 °C, vs air)

vapor pressure: 1779 mm Hg ( 21 °C)

FEMA: 3039 | SULFUR DIOXIDE

solubility: soluble in H2O, EtOh, ethyl ether,chloroform

form: colorless gas

color: colorless

Odor: Pungent odor detectable at 0.3 to 5 ppm

Odor Threshold: 0.87ppm

Water Solubility: %H2O: 17.7 (0°C), 11.9 (15°C), 8.5 (25°C), 6.4 (35°C); % other solvents: 25, alcohol; 32, methanol [MER06]

Thermal Conductivity: 0.009 W/(m·K)

Merck: 13,9061

BRN: 3535237

Henry's Law Constant: 1.3×10^-2 mol/(m³Pa) at 25℃, Burkholder et al. (2019)

Dielectric constant: 17.6（-20℃）

Exposure limits: TLV-TWA 2 ppm (～5 mg/m³) (ACGIH), 5 ppm (OSHA and MSHA); IDLH 100 ppm (NIOSH).

Stability:: Stable. Non-corrosive when dry to common materials except zinc; corrosive when wet. Incompatible with strong reducing or oxidizing agents, moisture, zinc and its alloys.

InChI: 1S/O2S/c1-3-2

InChIKey: RAHZWNYVWXNFOC-UHFFFAOYSA-N

SMILES: O=S=O

CAS DataBase Reference: 7446-09-5(CAS DataBase Reference)

IARC: 3 (Vol. 54) 1992

NIST Chemistry Reference: Sulfur dioxide(7446-09-5)

EPA Substance Registry System: Sulfur dioxide (7446-09-5)

Safety Information

Symbol(GHS): GHS04,GHS05,GHS06

Signal word: Danger

Hazard statements: H314-H331

Precautionary statements: P260-P264-P280-P261-P271-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P305+P351+P338-P311-P410+P403-P405-P403+P233-P501

Hazard Codes: T

Risk Statements: 23-34

Safety Statements: 9-26-36/37/39-45

RIDADR: UN 1079

OEB: B

OEL: TWA: 2 ppm (5 mg/m3), STEL: 5 ppm (13 mg/m3)

WGK Germany: 1

RTECS: WS4550000

F: 4.5-31

TSCA: TSCA listed

DOT Classification: 2.3, Hazard Zone C (Gas poisonous by inhalation)

HazardClass: 2.3

Storage Class: 2A - Gases

Hazard Classifications: Acute Tox. 3 Inhalation
Eye Dam. 1
Press. Gas Liquefied gas
Skin Corr. 1B

Hazardous Substances Data: 7446-09-5(Hazardous Substances Data)

Toxicity: LC50 inhal (rat) 2520 ppm (6590 mg/m3; 1 h)
LCLO inhal (human) 1000 ppm (2600 mg/m3; 10 min)
PEL (OSHA) 5 ppm (13 mg/m3)
TLV-TWA (ACGIH) 2 ppm (5.2 mg/m3)
STEL (ACGIH) 5 ppm (13 mg/m3)

IDLA: 100 ppm

REACH Registrations: Active

Use

Containers may explode in heat of fire or they may rupture and release irritating toxic Sulfur dioxide. Sulfur dioxide has explosive properties when Sulfur dioxide comes in contact with sodium hydride; potassium chlorate at elevated temperatures; ethanol; ether; zinc ethylsulfurinate at very cool temperatures (-15C); fluorine; chlorine trifluoride and chlorates. Sulfur dioxide will react with water or steam to produce toxic and corrosive fumes. When the liquid is heated Sulfur dioxide may release irritating, toxic Sulfur dioxide gas. Avoid ammonia, monocesium or monopotassium acetylide; dicesium monoxide; iron (II) oxide; tin oxide; lead (IV) oxide; chromium; manganese; molten sodium, powder aluminum and rubidium. Sulfur dioxide has explosive properties when Sulfur dioxide comes in contact with sodium hydride; potassium chlorate at elevated temperatures; ethanol; ether; zinc ethylsulfurinate at very cool temperatures (-15C); fluorine; chlorine trifluoride and chlorates. Sulfur dioxide will react with water or steam to produce toxic and corrosive fumes. Hazardous polymerization may not occur.

You can find Sulfur dioxide suppliers, manufacturers, and distributors from countries such as China, United States and the India here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.