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Merck
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重要文件

799343

Sigma-Aldrich

偏亚硫酸氢钠

anhydrous, free-flowing, Redi-Dri, ReagentPlus®, ≥99%

同義詞:

偏二亚硫酸钠, 焦亚硫酸钠

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About This Item

線性公式:
Na2S2O5
CAS號碼:
分子量::
190.11
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.21

等級

anhydrous

品質等級

產品線

ReagentPlus®
Redi-Dri

化驗

≥99%

形狀

powder

品質

free-flowing

mp

>300 °C (lit.)

SMILES 字串

[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 密鑰

HRZFUMHJMZEROT-UHFFFAOYSA-L

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一般說明

Redi-Dri包装技术可避免盐类试剂结块,让你无需再通过复杂手段保持粉末自由流动。粉末维持干燥便于准确称量和轻松取用,改善实验结果。Redi-Dri技术无抗结剂添加即可数月保持粉末的易用流动形式,让你不再需要对盐类试剂进行烘箱或干燥器干燥处理,或手动粉碎结块。重复取用后,结果依然准确。Redi-Dri包装通过长期保证盐类试剂的方便易用,大幅节约您的时间、精力和金钱。

特點和優勢

  • 提高效率–免除需要松散硬化粉末的时间和精力
  • 更加安全–避免使用工具大力敲碎团块的风险
  • 更加经济–制备和溶剂化速度更快,提高效率并节约成本
  • 质量保证–经过专业检测的出色品质,无抗结剂添加
  • 灵活的用量选择–有从研究到放大级别的用量规格可供选择

其他說明

在固体形式,该产品为焦亚硫酸钠,Na2S2O5。溶于水后,生成NaHSO3

法律資訊

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

象形圖

CorrosionExclamation mark

訊號詞

Danger

危險聲明

危險分類

Acute Tox. 4 Oral - Eye Dam. 1

安全危害

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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David W Roberts et al.
Contact dermatitis, 66(3), 123-127 (2012-02-11)
Skin-sensitizing chemicals that cause allergic contact dermatitis do so by reacting with self-proteins such that the modified structure becomes antigenic. The reaction chemistry involved is well characterized, but there are exceptions, such as the occasional allergen sodium metabisulfite. To identify
Ilgaz Akdogan et al.
Toxicology and industrial health, 27(9), 771-778 (2011-04-23)
Sulfite, which is continuously formed in the body during metabolism of sulfur-containing amino acids, is commonly used in preservatives. It has been shown that there are toxic effects of sulfite on many cellular components. The aim of this study was
I U Nieves et al.
Bioresource technology, 102(13), 6959-6965 (2011-05-03)
Microaeration (injecting air into the headspace) improved the fermentation of hemicellulose hydrolysates obtained from the phosphoric acid pretreatment of sugarcane bagasse at 170°C for 10 min. In addition, with 10% slurries of phosphoric acid pretreated bagasse (180°C, 10 min), air
Ivana Mara da Costa Machado Matos Carvalho et al.
Chemosphere, 82(7), 1056-1061 (2010-11-09)
Sodium metabisulfite is used in marine shrimp harvesting to prevent the occurrence of black spots. Shrimps are soaked in a sodium metabisulfite solution in ice, which is disposed of in sewages that run into marine canals, creating an environmental hazard.
Jeffrey N Hemenway et al.
Journal of pharmaceutical sciences, 101(9), 3305-3318 (2012-05-23)
A 2,4-dinitrophenylhydrazine (DNPH) precolumn derivatization high-performance liquid chromatography-ultraviolet detection (HPLC-UV) method was developed to quantify levels of formaldehyde and acetaldehyde in polyethylene glycol (PEG) solutions. Formic acid and acetic acid were quantified by HPLC-UV. Samples of neat and aqueous PEG

文章

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

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