Logo Tradeasia International 🔍 🌐
    CAREER

    >

    >

    Sulphur

    Sulphur in Tradeasia

    IUPAC Name

    Axit Sulfuric

    Cas Number

    7704-34-9

    HS Code

    6404.11.00

    Formula

    S8

    Basic Info

    Appearance

    Yellow Solid

    Common Names

    Sulfur

    Packaging

    25 Kg PP/PE Bags

    Brief Overview

    Sulfur (or sulphur) is an abundant, naturally occuring, multivalent non-metal. Sulfur is an essential element for all life, and is widely used in biochemical processes. In metabolic reactions, sulfur compounds serve as both fuels (electron donors) and respiratory (oxygen-alternative) materials (electron acceptors). Sulfur in organic form is present in the vitamins biotin and thiamine, the latter being named for the Greek word for sulfur. Sulfur is an important part of many enzymes and in antioxidant molecules like glutathione and thioredoxin. Organically bonded sulfur is a component of all proteins, as the amino acids cysteine and methionine. Disulfide bonds are largely responsible for the mechanical strength and insolubility of the protein keratin, found in outer skin, hair, and feathers, and the element contributes to their pungent odor when burned.

    Manufacturing Process

    Elemental sulfur was once extracted from salt domes where it sometimes occurs in nearly pure form, and is extracted using Frasch process. In this method, superheated water was pumped into a native sulfur deposit to melt the sulfur, and then compressed air returned the 99.5% pure melted product to the surface. Throughout the 20th century this procedure produced elemental sulfur that required no further purification. However, due to a limited number of such sulfur deposits and the high cost of working them, this process for mining sulfur has not been employed in a major way anywhere in the world since 2002.

    Today, sulfur is produced from petroleum, natural gas, and related fossil resources, from which it is obtained mainly as hydrogen sulfide. Organosulfur compounds, undesirable impurities in petroleum, may be upgraded by subjecting them to hydrodesulfurization, which cleaves the C-S bonds:

    R-S-R + 2 H2 → 2 RH + H2S

    The resulting hydrogen sulfide from this process, and also as it occurs in natural gas, is converted into elemental sulfur by the Claus process. This process entails oxidation of some hydrogen sulfide to sulfur dioxide and then the comproportionation of the two:

    3 O2 + 2 H2S → 2 SO2 + 2 H2O

    SO2 + 2 H2S → 3 S + 2 H2O

    Food Industry

    Small amounts of sulfur dioxide gas addition (or equivalent potassium metabisulfite addition) to fermented wine to produce traces of sulfurous acid (produced when SO2 reacts with water) and its sulfite salts in the mixture, has been called "the most powerful tool" in winemaking. After the yeast-fermentation stage in winemaking, sulfites absorb oxygen and inhibit aerobic bacterial growth that otherwise would turn ethanol into acetic acid, souring the wine. Without this preservative step, indefinite refrigeration of the product before consumption is usually required. Similar methods go back into antiquity but modern historical mentions of the practice go to the fifteenth century. The practice is used by large industrial wine producers and small organic wine producers alike. Sulfur dioxide and various sulfites have been used for their antioxidant antibacterial preservative properties in many other parts of the food industry also. The practice has declined since reports of an allergy-like reaction of some persons to sulfites in foods.

    Detergent Industry

    Sulphur is present in laundry detergents as sodium sulphate and minor other compounds. Sodium sulphate is often used as filler with larger quantities used in standard laundry powders than concentrates.

    Fertilizer

    Elemental sulfur is hydrophobic and therefore, cannot be directly utilized by plants. Over time, soil bacteria can convert it to soluble derivatives, which can then be utilized by plants. Sulfur improves the use efficiency of other essential plant nutrients, particularly nitrogen and phosphorus. It is one of the major nutrients essential for plant growth.

    Pulp and Paper Industry

    Its primary use is in the pulping process to separate fibers from raw materials such as wood, which serves as the basis for paper production. Moreover, sulfur compounds aid in the delignification of wood as a means for separating cellulose fibers, resulting in high quality paper products.

    Other Application

    Sulfur is also a component in fungicides and pesticides. As a bactericide, sufur is an essential tool in wine making and food preservation.

    Related Products

    +
    This website uses cookies
    This website uses cookies to improve user experience. By using our website, you consent to all cookies in accordance with our Cookie Policy.
    Read more
    Simpan & Tutup
    ACCEPT ALL
    DECLINE ALL
    Deklarasi kue
    Tentang cookie
    Sangat diperlukan
    Pertunjukan
    Penargetan
    Tidak terklasifikasi
    Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
    Name Domain Expiration Description
    CookieScriptConsent .borontradeasia.com 1 month This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
    Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
    Name Domain Expiration Description
    _ga .borontradeasia.com 2 years This cookie name is associated with Google Universal Analytics - which is a significant update to Google's more commonly used analytics service. This cookie is used to distinguish unique users by assigning a randomly generated number as a client identifier. It is included in each page request in a site and used to calculate visitor, session and campaign data for the sites analytics reports. By default it is set to expire after 2 years, although this is customisable by website owners.
    _gid .borontradeasia.com 1 day This cookie name is associated with Google Analytics. It is used by gtag.js and analytics.js scripts and according to Google Analytics this cookie is used to distinguish users.
    _gat_UA-154460977-1 .borontradeasia.com 1 minute This is a pattern type cookie set by Google Analytics, where the pattern element on the name contains the unique identity number of the account or website it relates to. It appears to be a variation of the _gat cookie which is used to limit the amount of data recorded by Google on high traffic volume websites.
    Targeting cookies are used to identify visitors between different websites, eg. content partners, banner networks. Those cookies may be used by companies to build a profile of visitor interests or show relevant ads on other websites.
    Name Domain Expiration Description
    PHPSESSID www.borontradeasia.com Session Cookie generated by applications based on the PHP language. This is a general purpose identifier used to maintain user session variables. It is normally a random generated number, how it is used can be specific to the site, but a good example is maintaining a logged-in status for a user between pages.
    Unclassified cookies are cookies that do not belong to any other category or are in the process of categorization.
    Name Domain Expiration Description
    LaVisitorNew www.borontradeasia.com 1 day
    LaVisitorId_Y2hlbXRyYWRlYXNpYS5sYWRlc2suY29tLw .borontradeasia.com Sidang
    LaSID www.borontradeasia.com Sidang
    Cookie adalah file teks kecil yang ditempatkan di komputer Anda oleh situs web yang Anda kunjungi. Situs web menggunakan cookie untuk membantu pengguna bernavigasi secara efisien dan menjalankan fungsi tertentu. Cookie yang diperlukan agar situs web dapat beroperasi dengan benar diizinkan untuk disetel tanpa izin Anda. Semua cookie lainnya harus disetujui sebelum dapat diatur di browser. Anda dapat mengubah persetujuan Anda untuk penggunaan cookie kapan saja di halaman Kebijakan Privasi kami.
    ID persetujuan cookie:
    Laporan cookie dibuat pada 13-01-2021 oleh Cookie-Script
    ×