13459

メタ重亜硫酸ナトリウム

puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E223, dry, 97-100.5%

• 別名: ピロ亜硫酸ナトリウム, 二亜硫酸ナトリウム
• 化学式: Na₂S₂O₅
• CAS番号: 7681-57-4
• 分子量: 190.11
• EC Number: 231-673-0
• MDL番号: MFCD00167602
• UNSPSCコード: 12352302
• PubChem Substance ID: 329750183
• NACRES: NA.21
• アッセイ: 97-100.5%
• フォーム: powder or crystals

特性

• グレード: puriss.
• 品質水準: 200
• アッセイ: 97-100.5%
• フォーム: powder or crystals
• 品質: dry; meets analytical specification of Ph. Eur., BP, NF, FCC, E223
• 組成: SO₂, 65.0-67.4%
• 不純物: residue of solvents, complies; ≤0.02% thiosulfate (S₂O₃)
• pH: 3.5-5.0 (20 °C, 5%)
• mp: >300 °C (lit.)
• 微量陰イオン: chloride (Cl^-): ≤100 mg/kg
• 微量陽イオン: As: ≤2 mg/kg; Cu: ≤10 mg/kg; Fe: ≤10 mg/kg; Hg: ≤1 mg/kg; Pb: ≤2 mg/kg; Se: ≤5 mg/kg; Zn: ≤10 mg/kg
• 適合性: complies for appearance of solution
• SMILES記法: [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O
• InChI: 1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
• InChI Key: HRZFUMHJMZEROT-UHFFFAOYSA-L

詳細

詳細

Sodium metabisulfite (MBS, Sodium disulfite) is an inorganic salt. It is the sodium salt of disulphurous (pyrosulfurous) acid. It is widely used as reducing agent in textile and photography industry. It is commonly added to various foods and wines as preservative.

アプリケーション

Sodium metabisulfite was used to initiate the cross-linking of polybutadiene in the cores of the vesicle membranes by free radical polymerization in solution. It has been used to prevent the oxidation (as antioxidant) during the preparation of stock solutions of 6-hydroxydopamine in various studies.

安全性情報

• ピクトグラム: GHS05,GHS07
• シグナルワード: Danger
• 危険有害性情報: H302,H318
• 注意書き: P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P501
• 危険有害性の分類: Acute Tox. 4 Oral - Eye Dam. 1
• 補足的ハザード: EUH031
• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 1
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable