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Home> Encyclopedia > Hot Product Listed S   > Sodium metabisulfite
7681-57-4 structure

Sodium metabisulfite

CAS No.:7681-57-4
EINECS(EC#): 231-673-0
Molecular Weight:190.095
Molecular Formula:Na2O5S2 (isomer)
Names and Identifiers
Synonyms

4VON5FNS3C 7681-57-4 AC1LCVDV AC1Q1UWX ACMC-1BJUM ai3-51684 AKOS015950722 campden tablets ccris 3951 CHEBI:114786 CHEMBL2016976 CTK2H7105 D02054 disodium disulfite disodium disulphite disodium metabisulfite disodium oxido(oxo)-kappa(4)-sulfanesulfonate disodium pyrosulfite Disulfurous acid, sodium salt (1:2) DTXSID0029684 e223 EC 231-673-0 einecs 231-673-0 fertisilo FT-0645096 HRZFUMHJMZEROT-UHFFFAOYSA-L hsdb 378 I14-58753 K325 KS-00000WT3 KSC377C0L LS-2427 MFCD00167602 MOLPORT-003-926-316 Na2O5S2 na2s2o5 natrii disulfis Natrii metabisulfis natrium metabisulfurosum natrium pyrosulfit natriummetabisulfit pyrosulfurous acid, disodium salt RP24964 RTR-024578 sodium bisulfite anhydrous sodium disulfite sodium meta bisulfite sodium metabisuifite sodium metabisuiphite sodium meta-bisulfite sodium metabisulfite (na2-s2o5) sodium metabisulfite (nf) Sodium metabisulfite [NF] sodium metabisulfite [usan] sodium metabisulfite a.c.s. reagent Sodium metabisulfite, 97%, extra pure, anhydrous Sodium metabisulfite, 97+%, ACS reagent Sodium metabisulfite, for analysis sodium metabisulfite, granular Sodium metabisulfite, SO2 58.5% sodium metabisulphite sodium metasulfite sodium pyrosulfite sodium pyrosulfite (jp17) sodium pyrosulfite (na2s2o5) sodium pyrosulphite sodiummetabisulfite sodiummetabisulphite TR-024578 TRA0060415 UNII-4VON5FNS3C

Inchi
InChI=1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChkey
HRZFUMHJMZEROT-UHFFFAOYSA-L
Canonical Smiles
[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]
Isomers Smiles
[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]
Properties
Appearance
white crystalline powder
Density
1.48
Melting Point
150℃
Boiling Point
greater than 302° F (Decomposes) (NIOSH, 2016)
Flash Point
无意义
Solubility
540 g/L (20 oC)
Color/Form
White hexagonal crystals or powder
Other physical and chemical properties
SODIUM METABISULFITE; is a white crystalline or powder solid with a slight sulfur; odor. Toxic by inhalation . Strongly irritates skin and tissue. Noncombustible, but may decompose to emit toxic oxide fumes of sulfur; and sodium; when heated to high temperature. A corrosive acid when mixed with water;. Used as a food preservative and as a laboratory reagent.
Stability
Stable. Incompatible with strong oxidizing agents, strong acids. Contact with strong acids releases a poisonous gas. May be moisture and air sensitive.
HS Code
2832100000
Storage temp
Store at RT.
Safety and Handling
Hazard Codes
Xn
Risk Statements
R22;R31;R41
Safety Statements
S26;S39;S46
Hazard Note
H302; H318
Safety

Hazard Codes:?HarmfulXn,?IrritantXi
Risk Statements: 22-31-41-36/37/38?
R22:Harmful if swallowed.?
R31 :Contact with acids liberates toxic gas.?
R41:Risk of serious damage to the eyes.?
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-39-46-36?
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?
S39:Wear eye / face protection.?
S46:If swallowed, seek medical advice immediately and show this container or label.?
S36:Wear suitable protective clothing.
RIDADR: 3260
WGK Germany: 1
RTECS: UX8225000
PackingGroup: III

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 skin > 1gm/kg (1000mg/kg) SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE"

SKIN AND APPENDAGES (SKIN): HAIR: OTHER
National Technical Information Service. Vol. OTS0556695,
mouse LD50 parenteral 910mg/kg (910mg/kg) ? Russian Pharmacology and Toxicology Vol. 31, Pg. 120, 1968.
rabbit LDLo intravenous 192mg/kg (192mg/kg) ? Toxicology and Applied Pharmacology. Vol. 24, Pg. 266, 1973.
?
rat LD50 intravenous 115mg/kg (115mg/kg) ? "Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986Vol. 6, Pg. 1418, 1991.
rat LD50 oral 1131mg/kg (1131mg/kg) BEHAVIORAL: FOOD INTAKE (ANIMAL)

BEHAVIORAL: MUSCLE WEAKNESS

SKIN AND APPENDAGES (SKIN): HAIR: OTHER
National Technical Information Service. Vol. OTS0556695,
rat LD50 skin > 2gm/kg (2000mg/kg) ? National Technical Information Service. Vol. OTS0557608,

PackingGroup
III
Transport
UN 2693
Specification

?Sodium Metabisulphite (CAS NO.7681-57-4) is also named as AI3-51684 ; CCRIS 3951 ; Campden Tablets ; Disodium disulfite ; Disodium metabisulfite ; Disodium pyrosulfite ; Disulfurous acid, disodium salt ;?Fertisilo ; HSDB 378 ; Natrii disulfis ; Natrium metabisulfurosum ; Natrium pyrosulfit ; Natriumbisulfit ; Natriummetabisulfit ; Pyrosulfurous acid, disodium salt ; Sodium bisulfite anhydrous ; Sodium disulfite ; Sodium metabisulfite ; Sodium metabisulfite (Na2-S2O5) ; Sodium pyrosulfite ; Sodium pyrosulfite (Na2S2O5)?.?Sodium Metabisulphite (CAS NO.7681-57-4) is white crystalline powder with a sulfur smell. It is soluble in water and?glycerine, slightly soluble in ethanol.

MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Acute toxicity - Oral, Category 4

Serious eye damage, Category 1

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H302 Harmful if swallowed

H318 Causes serious eye damage

Precautionary statement(s)
Prevention

P264 Wash ... thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

Response

P301+P312 IF SWALLOWED: Call a POISON CENTER/doctor/\u2026if you feel unwell.

P330 Rinse mouth.

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P310 Immediately call a POISON CENTER/doctor/\u2026

Storage

none

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

Computational chemical data
  • Molecular Weight:190.095g/mol
  • Molecular Formula:Na2O5S2
  • Compound Is Canonicalized:True
  • Exact Mass:189.898
  • Monoisotopic Mass:189.898
  • Complexity:136
  • Rotatable Bond Count:0
  • Hydrogen Bond Donor Count:0
  • Hydrogen Bond Acceptor Count:6
  • Topological Polar Surface Area:125A^2
  • Heavy Atom Count:9
  • Defined Atom Stereocenter Count:0
  • Undefined Atom Stereocenter Count:0
  • Defined Bond Stereocenter Count:0
  • Undefined Bond Stereocenter Count:0
  • Isotope Atom Count:0
  • Covalently-Bonded Unit Count:3
  • CACTVS Substructure Key Fingerprint: AAADcQAAODBgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAADAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AA==
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