GY-Sodium metabisulfite (SMBS)
COA 110 Inquiries
7681-57-4
Industrial Grade
96.5%
25kg/woven bag
Yes
2026-10-19
DMF,Aniline,Benzene,Phosphoric acid,Hexane,Heptane
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Product Details
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Seller Information
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Inquiry History
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DescriptionECHEMI Editorial Referencewhite crystalline powder with a sulfur smell Sodium metabisulfite is a white crystalline powder. Sulfur dioxide odor. It may be considered the anhydride of 2 molecules of sodium disulfite. Sodium metabisulfite occurs as colorless, prismatic crystals or as a white to creamy-white crystalline powder that has the odor of sulfur dioxide and an acidic, saline taste. Sodium metabisulfite crystallizes from cold water as a hydrate containing seven water molecules.
Sodium metabisulfite appears as 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.|DryPowder; Liquid; OtherSolid; PelletsLargeCrystals|White crystals or crystalline powder|WHITE POWDER.|White to yellowish crystals or powder with a slight odor of sulfur.|White to yellowish crystals or powder with an odor of sulfur dioxide.
Sodium metabisulfite appears as 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.|Sodium disulfite is an inorganic sodium salt composed of sodium and disulfite ions in a 2:1 ratio. It has a role as a food antioxidant. It contains a disulfite.CertificatesBasic Info-
Product Name:
Sodium pyrosulfite
Other Name:Disulfurous acid,sodium salt (1:2);Pyrosulfurous acid,disodium salt;Disulfurous acid,disodium salt;Sodium pyrosulfite (Na2S2O5);Sodium pyrosulfite;Sodium metabisulfite;Sodium metabisulfite (Na2S2O5);Disodium pyrosulfite;Fertisilo;Disodium disulfite;Sodium disulfite (Na2S2O5);Disodium metabisulfite;Disodium pyrosulfite (Na2S2O5);Campden Tablets;Colorstrip Catalyst 100;E 223;Sobis;Sobisu;Sodium sulfur oxide (Na2S2O5);NSC 158277;NSC 227243;15771-29-6;1287784-10-4;2242622-57-5
CAS No.:7681-57-4
Molecular Formula:H2O5S2.2Na
InChIKeys:InChIKey=ZBVPOSMABOMSMZ-UHFFFAOYSA-N
Molecular Weight:190.095
Exact Mass:189.898254
EC Number:231-673-0
UNII:4VON5FNS3C
ICSC Number:1461
UN Number:1759
DSSTox ID:DTXSID0029684
Color/Form:White hexagonal crystals or powder|White to yellowish crystals or powder.|Colorless crystals|White granular or powdered salt
HScode:2832100000
Categories:
Characteristics-
PSA:
125
XLogP3:-3.7
Appearance:White to slightly yellow Powder/Solid
Density:1.4 g/cm3
Melting Point:150 °C (decomp)
Boiling Point:Decomposes
Water Solubility:H2O: 540 g/L (20 ºC)
Storage Conditions:Storage containers are predominantly made from 1.4571 grade stainless steel. Fiberglass-reinforced plastic containers are also suitable for storage. Paper or plastic sacks, steel barrels, or big bags made of synthetic fibers are used for transportation.
Toxicity:LD50 orally in Rabbit: 1540 mg/kg LD50 dermal Rat > 2000 mg/kg
Flammability characteristics:Noncombustible Solid
Odor:In the presences of traces of water, it develops an odor of sulfur dioxide
PH:4,0-5,5 (10 % aqueous solution)
Experimental Properties:... in moist air it decomposes with loss of part of its SO2 content and by oxidation to sodium sulfate ... Dry sodium metabilsulfite is more stable to oxidation than dry sodium sulfite|Slowly oxidized to the sulfate on exposure to air and moisture
Air and Water Reactions:Acts as a corrosive acid when mixed with water. Reacts slowly with air and water.
Reactive Group:Sulfite and Thiosulfate Salts
Reactivity Alerts:Strong Reducing Agent
Reactivity Profile:SODIUM METABISULFITE is incompatible with the following: Heat (decomposes) [Note: Slowly oxidized to the sulfate on exposure to air & moisture.] (NIOSH, 2016).
Flammable Limits:Noncombustible Solid
Hazard IdentificationClassification of the substance or mixture
Acute toxicity - Category 4, Oral
Serious eye damage, Category 1
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/hearing protection/...
Response P301+P317 IF SWALLOWED: Get medical help.
P330 Rinse mouth.
P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P317 Get medical help.
Storage none
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Separated from acids and strong oxidants.The bulk material should be stored in a well closed container, protected from light, in a cool, dry place.
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Seller Information
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Business Type:
Trader
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Main Products:
DMF,Aniline,Benzene,Phosphoric acid,Hexane,Heptane
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Location:
No.19-10 Building 10, No.9 Huoju Rd, Jiulongpo District, Chongqing.
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Payment Terms:
L/C,TT against B/L draft before shipment,100% TT in advance
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Total Employees:
5-10
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Year of Establishment:
2012
Company Certificates-
![Chongqing Guangyi Chemical Co.,LtdEMS CERTIFICATION OF REGISTRATION]( "EMS CERTIFICATION OF REGISTRATION")
EMS CERTIFICATION OF REGISTRATION
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![Chongqing Guangyi Chemical Co.,LtdOHSMS CERTIFICATION OF REGISTRATION]( "OHSMS CERTIFICATION OF REGISTRATION")
OHSMS CERTIFICATION OF REGISTRATION
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![Chongqing Guangyi Chemical Co.,LtdQMS CERTIFICATION OF REGISTRATION]( "QMS CERTIFICATION OF REGISTRATION")
QMS CERTIFICATION OF REGISTRATION
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Inquiry History110 Inquiries
Country Product Purchase Quantity Date Posted 
India
Sodium Metabisulphite
5 20' Fcl Oct 26, 2026 
Zambia
Sodium Metabisulfite
25 KG Oct 21, 2026 
Philippines
Sodium pyrosulfite
33750 KG Oct 17, 2026 
Trinidad and Tobago
Sodium Metabisulphite
1 20' Fcl Oct 6, 2026
India
Sodium Metabisulfite
10 MT Sep 11, 2026 
Vietnam
Sodium Metabisulfite
10 KG Sep 9, 2026 
Egypt
Sodium meta bi Sulfite
100.00 KG Aug 18, 2026 
Bangladesh
Sodium metabisulfate BP
1 KG Jul 30, 2026 
Indonesia
Sodium Metabisulphite
1 MT Jul 23, 2026
Indonesia
Sodium Metabisulphite
750 MT Jul 23, 2026
India
Sodium Metabisulphite
3.00 MT Jul 10, 2026 
Pakistan
Sodium Metabisulfite
1.00 20' Fcl Jul 7, 2026 
South Sudan
Sodium Metabisulphite
200 KG Jun 29, 2026 
Russia
sodium metabisulfite
1 KG Jun 23, 2026
Russia
Sodium pyrosulfite
3 MT Jun 22, 2026
Pakistan
Sodium metabisulfite
3.00 KG Jun 5, 2026
Pakistan
Sodium Metabisulfite
1.00 KG Jun 3, 2026
Russia
sodium metabisulfite
1 KG May 29, 2026
Russia
sodium metabisilfite
200 MT May 28, 2026
Russia
sodium metabisulfite
1 KG May 27, 2026 Post an enquiry for this product
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