Sulfur

CAS 7704-34-9SMicro / NanoElectronics

Sulfur (CAS: 7704-34-9, Formula: S, Molar Mass: 32.07) is a non-metallic chemical element available from Tech Serve Solutions as yellow flakes. It exhibits a high resistivity of 2E23 μΩ-cm at 20°C and a melting point range of 112.8-119.0°C. Sulfur is crucial in various industrial applications, including its use in the production of sulfuric acid, vulcanization of rubber, and as a component in pesticides and pyrotechnics. Its purity is assaying 99.998% trace metals basis.

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Sulfur (S) — chemical element, CAS 7704-34-9; Materials Science, fine chemical supplied by Tech Serve Solutions

AcaricidesAnalytical StandardsAnalytical/ChromatographyChromatographyElectronic ChemicalsEnvironmental StandardsMaterials ScienceMicro/NanoElectronicsPesticidesPesticides & Metabolites

01 /Applications

Chemical Synthesis

Sulfur is a fundamental raw material in the chemical industry, primarily used for the large-scale production of sulfuric acid. It also plays a role in the synthesis of various sulfur-containing organic compounds.

Vulcanization of Rubber

This non-metallic element is essential for the vulcanization process, which improves the strength, elasticity, and durability of rubber products by cross-linking polymer chains.

Pesticides and Fungicides

Sulfur compounds have historically been used and continue to be utilised as active ingredients in agricultural fungicides and acaricides to protect crops from diseases and pests.

Material Science and Electronics

With its high resistivity, sulfur finds applications in material science and as an electronic chemical, particularly in niche microelectronic fabrication processes.

02 /Properties

Molecular weight	32.07
Empirical formula	S
Assay	99.998% trace metals basis
Form	flakes
Boiling point	444.7 °C(lit.)
Density	2.07 g/mL at 25 °C
Vapour pressure	1 mmHg (183.8 °C)10 mmHg (246 °C)
Melting point	112.8 °C (rhombic)(lit.)117-120 °C(lit.)119.0 °C (monoclinic)(lit.)
Vapour density	8.9 (vs air)
Autoignition temp	450 °F

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H315Causes skin irritation

Protective equipment	Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Flash point	207 °C / 404.6 °F
Transport (UN / ADR)	UN 1350 4.1 / PGIII
Water hazard class (WGK, DE)	1
Hazard codes (EU)	Xi
Risk statements (R)	38
Safety statements (S)	46

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

7704-34-9

MDL number

MFCD00085316

PubChem substance

24861269

05 /Additional specifications

Resistivity	2E23 μΩ-cm, 20°C

06 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

07 /Frequently asked questions

What is Sulfur (CAS: 7704-34-9) used for?

Sulfur (CAS: 7704-34-9) is used in chemical synthesis, notably for sulfuric acid production, vulcanization of rubber, as a component in pesticides and fungicides, and in material science and electronics due to its high resistivity.

What are the CAS number and formula for Sulfur?

The CAS number for Sulfur is 7704-34-9, and its chemical formula is S.

What grade and purity does Tech Serve Solutions supply for Sulfur?

Tech Serve Solutions supplies Sulfur with an assay of 99.998% on a trace metals basis. We do not represent this product as USP, BP, or EP grade.

What are the main safety concerns when handling Sulfur?

Sulfur (CAS: 7704-34-9) is classified with a GHS07 symbol and a 'Warning' signal word. It carries Hazard Statement H315, indicating it causes skin irritation. Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection (N100 or P3 filters), should be used. Ensure adequate ventilation during handling.

How is Sulfur packed, shipped, and exported by TSS?

Sulfur is typically supplied as yellow flakes. As a specialist global supplier and exporter since 1998, Tech Serve Solutions adheres to all relevant regulations for packing, shipping, and exporting chemicals internationally. For specific details on UN 1350 4.1 / PGIII classification, please consult our shipping department.

How can I request a quote or sample for Sulfur?

To request a quote or sample for Sulfur, please contact our sales team via the website or phone number provided. Specify the product CAS number (7704-34-9) and the quantity required.