ICSC 1166 - SULFUR

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

SULFUR

ICSC: 1166
_{April 2000}

Flowers of sulfur
Flour sulfur
Brimstone

CAS No: 7704-34-9
RTECS No: WS4250000
UN No: 1350

S or S₈
Molecular mass: 256.5 (S₈); Atomic mass: 32.1

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Combustible.	NO open flames, NO sparks, and NO smoking.	Water spray. Foam. Powder. Dry sand.
EXPLOSION	Finely dispersed particles form explosive mixtures in air.	Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding).	In case of fire: keep drums, etc., cool by spraying with water.

EXPOSURE		PREVENT DISPERSION OF DUST!
Inhalation	Burning sensation. Cough. Sore throat.	Local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Refer for medical attention.
Skin	Redness.	Protective gloves.	Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes	Redness. Pain. Blurred vision.	Safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	Burning sensation. Diarrhoea.	Do not eat, drink, or smoke during work.	Rinse mouth. Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. (Extra personal protection: P2 filter respirator for harmful particles).	UN Hazard Class: 4.1 UN Pack Group: III

EMERGENCY RESPONSE	STORAGE
Transport Emergency Card: TEC (R)-115A NFPA Code: H 1; F 1; R 0	Fireproof. Separated from strong oxidants.

IMPORTANT DATA

Physical State; Appearance
YELLOW SOLID IN VARIOUS FORMS

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.

Chemical dangers
On combustion, forms toxic and corrosive gases of sulfur oxides including sulfur dioxide (see ICSC 0074). Reacts violently with strong oxidants causing fire and explosion hazard, especially if powdered.

Occupational exposure limits
TLV not established.

Routes of exposure
The substance can be absorbed into the body by inhalation and by ingestion.

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

Effects of short-term exposure
The substance irritates the eyes, the skin and the respiratory tract. Inhalation of powder of this substance may cause inflammation of the nose and the respiratory tract.

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the respiratory tract, resulting in chronic bronchitis.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: 445°C Melting point: (r-sulfur) 107°C, (beta-sulfur) 115°C, (amorphous) 120)°C Density: 2.1 g/cm³ Solubility in water: none Flash point: 160°C c.c. Auto-ignition temperature: 232°C Explosive limits, vol% in air: 35-1400 g/m³

NOTES

Often transported in molten state (UN 2448; TEC(R)-115). Molten sulfur reacts with hydrocarbons to form toxic and flammable gases.
Depending on the degree of exposure, periodic medical examination is indicated.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2000

LEGAL NOTICE

Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.

Updated by AS. Approved by EC. Last update: 10.10.2000