MSDS Sulfur (S) – Safety Data Sheet & GHS Hazards

Summary MSDS for Sulfur (S), CAS 7704-34-9: substance identity, GHS hazard classification, hazard and precautionary statements, and links to the manufacturer's official SDS.

Identity summary

Name	Sulfur
Other names (IUPAC)	sulfane
Molecular formula	S
CAS number	7704-34-9
Molar mass	32.07 g/mol
PubChem CID	5362487

Molar mass of S and how to calculate it

The molar mass of S is 32.06 g/mol, the sum of the relative atomic masses of all atoms in the formula: 32.065 = 32.06 g/mol.

Element	Atoms	Atomic mass	Contribution	Mass %
S	1	32.065	32.06	100.00%

So 1 mol of S weighs 32.06 g, and 1 L of a 0.1 M solution needs 3.206 g of pure S. For liquid or concentrated reagents, work from assay and density with the dilution formula. Calculate other compounds with the molar mass calculator.

Hazard identification (GHS)

Signal word: DANGER

Pictograms:

Meaning of all GHS hazard symbols

Hazard statements (H)

• H315: Causes skin irritation.
• H370: Causes damage to organs.
• H373: May cause damage to organs through prolonged or repeated exposure.
• H228: Flammable solid.

Precautionary statements (P)

Prevention

• P260: Do not breathe dust.
• P270: Do not eat, drink or smoke when using this product.
• P240: Ground and bond container and receiving equipment.
• P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
• P241: Use explosion-proof electrical/ ventilating/ lighting/ equipment.
• P264: Wash skin thoroughly after handling.
• P280: Wear protective gloves/ eye protection/ face protection.

Response

• P302 + P352: IF ON SKIN: Wash with plenty of water.
• P370 + P378: In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
• P308 + P311: IF exposed or concerned: Call a POISON CENTER/doctor.
• P362 + P364: Take off contaminated clothing and wash it before reuse.
• P332 + P313: If skin irritation occurs: Get medical advice/ attention.

Storage

• P405: Store locked up.

Disposal

• P501: Dispose of contents/ container to an approved waste disposal plant.

The GHS classification above matches TCI (Tokyo Chemical Industry) official data for product U0149 Sulfur (Powder). Substance identity from PubChem CID 5362487.

Download the official SDS & CoA

The applicable Safety Data Sheet is the manufacturer's SDS for the product and lot you purchase. For products available from AMI Scientific:

TCI U0149 – Sulfur (Powder)	Official SDS & CoA (TCI)
TCI U0149 – Sulfur (Powder)	View product

SDS and lot-specific CoA are sent with the quotation/order or on request.

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What is an MSDS/SDS?

An MSDS (Material Safety Data Sheet), now called an SDS (Safety Data Sheet), is a 16-section document describing the hazards, handling, storage, first aid, and disposal of a chemical. Read the full MSDS guide and other MSDS pages.

This summary was compiled by AMI Scientific from TCI official GHS data for information purposes. Classification may differ by concentration, form, and supplier. Always refer to the manufacturer's official SDS for the product and lot you use. Updated: 06-11-2026.