焦亚硫酸钠

焦亚硫酸钠（CAS 7681-57-4）：分子式 Na2O5S2、分子量 190.11；类别 精细化学品。

产品概览

应用领域

登记用途：Uses: CIR ingredient: Sodium Metabisulfite、Sodium and potassium metabisulfite are used as antioxidants in photographic film development. [Kanerva、p. 1637] Used as an antioxidant (food preservative、pharmaceutical aid、silage preservative、[HSDB] Used in the pickling stage of leather production、[PMID 21938525]、Leather Tanning and Processing [Category: Industry]、Photographic Processing [Category: Other]、For sodium metabisulfite (USEPA、OPP Pesticide Code: 111409) ACTIVE products with label matches.、SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal、state and local authorities must be consulted for currently approved uses.、Sodium Metabisulfite functions as reducing agents in cosmetic formulations. ... Sodium Bisulfite、and Sodium Metabisulfite、also、function as antioxidants.、In foods、as preservative、lab reagent、Sulfiting agents are used primarily to reduce or prevent spoilage and discoloration as well as to bleach food starches、condition dough for some baked goods、control fermentation of wine、and soften corn kernels during the wet-milling process.、For more Uses (Complete) data for SODIUM METABISULFITE (10 total)、please visit the HSDB record page.、Use Classification: EPA Safer Chemical Functional Use Classes -> Preservatives and Antioxidants、Safer Chemical Classes -> Yellow triangle - The chemical has met Safer Choice Criteria for its functional ingredient-class、but has some hazard profile issues、Food Additives -> ANTIOXIDANT、FLOUR_TREATMENT_AGENT、PRESERVATIVE -> JECFA Functional Classes、Cosmetics -> Preservative、Industry Uses: Reducing agent、Preservative、Not Known or Reasonably Ascertainable、Etching agent、Flotation agent、Anti-scaling agent、Intermediate、Oxidizing agent、Dye、Leaching agent、Processing aids not otherwise specified、Surfactant (surface active agent)、Chemical reaction regulator、Antioxidant、Consumer Uses: Solvent、Reducing agent、Household Products: Information on 69 consumer products that contain Sodium metabisulfite in the following categories is provided:、• Inside the Home、• Landscaping、Yard、• Personal Care、Methods of Manufacturing: Sodium disulfite is produced by treating 50-70% sodium hydroxide or a suspension of sodium carbonate with sulfur-dioxide-containing gases in saturated sodium hydrogen sulfite solution. The sodium disulfite is removed by centrifugation and then dried.、Formed when sodium bisulfite undergoes thermal dehydration. It may also be prepared by passing sulfur dioxide over sodium carbonate.、Impurities: Sodium metabisulfite usually contains small amounts of sodium sulfite and sodium sulfate.、Formulations、Preparations: Grades: FCC、The commercial product has a content of about 97% Na2S2O5、1-2% Na2SO3、and about 1% Na2SO4.、Available in photographic、food and NF、National Formulary、grades、It may be considered to be the anhydride of sodium bisulfite、and is reportedly the chief constituent of the commercial grade of the latter compound.、For more Formulations、Preparations (Complete) data for SODIUM METABISULFITE (16 total)、U.S. Production: 2023: 55、000、000 - <70、000 lb、2022: 55、2021: 55、2020: 55、Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#1145]、Production volume for non-confidential chemicals reported under the 2006 Inventory Update Rule. Chemical: Disulfurous acid、sodium salt. Aggregated National Production Volume: 10 to < 50 million lbs.、General Manufacturing Information: All Other Chemical Product and Preparation Manufacturing、Food、beverage、and tobacco product manufacturing、Paper Manufacturing、Organic Fiber Manufacturing、Textiles、apparel、and leather manufacturing、All Other Basic Organic Chemical Manufacturing、Other (requires additional information)、Services、Mining (except Oil and Gas) and support activities、Pharmaceutical and Medicine Manufacturing、Utilities、Pesticide、Fertilizer、and Other Agricultural Chemical Manufacturing、All Other Basic Inorganic Chemical Manufacturing、Plastics Product Manufacturing、Transportation Equipment Manufacturing、Primary Metal Manufacturing、Soap、Cleaning Compound、and Toilet Preparation Manufacturing、Disulfurous acid、sodium salt (1:2): ACTIVE、Chief constituent of commercial dry sodium bisulfite with which most of its properties and uses are practically identical.、Effluent containing Na2S2O5 5.7 ppm was circulated to wash flue gas in a press scrubber at 200 °For 2 hr. Spent liquid was filtered to obtain filtrate with Na2S2O5 2.4 ppm.、Of 17 antioxidants evaluated for use in epinephrine injection solutions、sodium metabisulfite was found to be most effective.、Post-emergence application of 1 kg Na2S2O5、ha increased the yield of sugar beet by 5.9%、and its sugar content by 17.57%、whereas the ash and N contents were decreased.、Listed as Generally Considered Safe (GRAS) by the FDA。

技术档案

这个产品是什么

焦亚硫酸钠 是一种高附加值精细化合物，登记 CAS 号为 7681-57-4，分子式 Na2O5S2（分子量 190.11），归属于精细化学品大类化工原料。

识别信息

登记 CAS 号：7681-57-4

其分子式 Na2O5S2 由 2 个钠、5 个氧、2 个硫 组成。

别名/同义词：焦亚硫酸钠 · Sodium metabisulfite

所属分类：精细化学品

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PubChem 公开数据

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