799343
偏亚硫酸氢钠
anhydrous, free-flowing, Redi-Dri™, ReagentPlus®, ≥99%
别名:
偏二亚硫酸钠, 焦亚硫酸钠
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关于此项目
线性分子式:
Na2S2O5
化学文摘社编号:
分子量:
190.11
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-673-0
MDL number:
Assay:
≥99%
Grade:
anhydrous
Form:
powder
grade
anhydrous
Quality Level
product line
ReagentPlus®, Redi-Dri™
assay
≥99%
form
powder
quality
free-flowing
mp
>300 °C (lit.)
SMILES string
[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
General description
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。
Features and Benefits
- 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
Other Notes
在固体形式，该产品为焦亚硫酸钠，Na2S2O5。溶于水后，生成NaHSO3。
Legal Information
ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1
supp_hazards
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
商品
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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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
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.
Gisela Palma-Orozco et al.
Phytochemistry, 72(1), 82-88 (2010-11-23)
While a long shelf life for fruit products is highly desired, enzymatic browning is the main cause of quality loss in fruits and is therefore a main problem for the food industry. In this study polyphenol oxidase (PPO), the main
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 799343-1KG | 04061824805314 |
| 799343-2.5KG | 04061832587974 |
| 799343-500G | 04061832974071 |