Sulfur dioxide manufacturers and suppliers in india

Sulfur dioxide

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]

Merck: 13,9061

BRN: 3535237

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

Dielectric constant: 17.6（-20℃）

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.

Safety Information

Symbol(GHS): GHS04,GHS05,GHS06

Signal word: Danger

Hazard statements: H280-H314-H331

Precautionary statements: P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P410+P403

Hazard Codes: T

Risk Statements: 23-34

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

RIDADR: UN 2037 2.3

OEB: B

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

WGK Germany: 1

RTECS: WS4550000

F: 4.5-31

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

HazardClass: 2.3

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

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.