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Merck
모든 사진(1)

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%

형태

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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