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Merck
모든 사진(1)

주요 문서

255556

Sigma-Aldrich

Sodium metabisulfite

ACS reagent, ≥97.0%

동의어(들):

Sodium disulfite, Sodium pyrosulfite

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About This Item

Linear Formula:
Na2S2O5
CAS Number:
Molecular Weight:
190.11
EC Number:
MDL number:
UNSPSC 코드:
12352302
PubChem Substance ID:

Grade

ACS reagent

분석

≥97.0%

양식

chunks
crystalline powder
powder, crystals or granules

불순물

≤0.005% insolubles

pH

4.5 (20 °C, 50 g/L)

mp

>300 °C (lit.)

음이온 미량물

chloride (Cl-): ≤0.05%
thiosulfate (S2O32-): ≤0.05%

양이온 미량물

Fe: ≤0.002%
heavy metals (as Pb): ≤0.001%

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

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기타 정보

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

픽토그램

CorrosionExclamation mark

신호어

Danger

유해 및 위험 성명서

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

보충제 위험성

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

dust mask type N95 (US), Eyeshields, Gloves


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시험 성적서(COA)

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문서 라이브러리 방문

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

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