CAS Number 7681-57-4, Sodium Metabisulfite or Sodium Metabisulphite USP NF BP Ph Eur Analytical Reagent FCC Food Grade Manufacturers Exporters
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CAS Number 7681-57-4, Sodium Metabisulfite or Sodium Metabisulphite Manufacturer Exporter
For Properties Specifications of Sodium Metabisulfite or Sodium Metabisulphite Click Properties, Specifications of Sodium Metabisulfite or Sodium Metabisulphite Manufacturer.
For Uses of Sodium Metabisulfite or Sodium Metabisulphite Click Uses of Sodium Metabisulfite or Sodium Metabisulphite Manufacturer.
For For SDS MSDS Sheet of Sodium Metabisulfite or Sodium Metabisulphite Click SDS Safety Data Sheet MSDS Sheet of Sodium Metabisulfite or Sodium Metabisulphite Manufacturer.
The Properties and Specifications of Sodium Metabisulfite or Sodium Metabisulphite:
Sodium Metabisulfite USP NF Grade Specificatiosn
Na2S2O5 -- 190.11
Disulfurous acid, disodium salt.
Disodium pyrosulfite CAS 7681-57-4
Sodium Metabisulfite contains an amount of Na2S2O5 equivalent to not less than 65.0 percent and not more than 67.4 percent of SO2.
Packaging and storage: Preserve in well-filled, tight containers, and avoid exposure to excessive heat.
Identification: A solution (1 in 20) responds to the tests for Sodium 191 and for Sulfite.
Limit of chloride: Dissolve 1.0 g in 10 mL of water, filter, if necessary, through a small chloride free filter, and add 6 mL of 30 percent hydrogen peroxide. Add 1 N sodium hydroxide until the solution is slightly alkaline to phenolphthalein, dilute with water to 100 mL, and mix. Dilute 2.0 mL of this solution with water to 20 mL, and add 1 mL of nitric acid and 1 mL of silver nitrate TS. Mix, allow to stand for 5 minutes protected from direct sunlight, and compare the turbidity, if any, with that produced from a 2-mL aliquot of a control (prepared by diluting 0.71 mL of 0.020 N hydrochloric acid to 100 mL) in an equal volume of total solution containing the quantities of reagents used in the test : any turbidity produced by the test specimen does not exceed that of the control preparation (0.05%).
Iron: the limit is 0.002%.
Limit of thiosulfate: Mix 2.2 g with 10 mL of 1 N hydrochloric acid in a 50-mL beaker. Boil gently for 5 minutes, cool, and transfer to a small test tube. Any turbidity is not greater than that produced by 0.10 mL of 0.10 N sodium thiosulfate, similarly treated (0.05%).
Heavy metals: the limit is 0.002%.
Sodium Metabisulphite BP Ph Eur Grade Specifications
Sodium Pyrosulphite
Na2S2O5
DEFINITION
Sodium metabisulphite also called sodium disulphite.
Content: 95.0 per cent to 100.5 per cent.
CHARACTERS
Appearance: White or almost white, crystalline powder or colourless crystals.
Solubility: Freely soluble in water, slightly soluble in ethanol (96 per cent).
IDENTIFICATION
A. pH 3.5 to 5.0 for solution S.
B. To 0.4 ml of iodinated potassium iodide solution R add 8 ml of distilled water R and 1 ml of solution S diluted 1 to 10 in distilled water R. The solution is colourless and gives reaction of sulphate.
C. Solution S gives reaction of sodium.
TESTS
Solution S: Dissolve 5.0 g in carbon dioxide-free water prepared from distilled water and dilute to 100 ml with the same solvent.
Appearance of solution: Solution S is clear and colourless.
pH: 3.5 to 5.0 for solution S.
Thiosulphate: To 5 ml of solution S add 5 ml of dilute hydrochloric acid R. The solution remains clear for at least 15 min.
Arsenic: Maximum 5 ppm.
Iron: Maximum 20 ppm, determined on solution S.
Heavy metals: Maximum 20 ppm.
Sodium Metabisulfite FCC Food Grade Specifications
Sodium Pyrosulfite
Na2S2O5 Formula weight 190.11
INS: 223 CAS 7681-57-4
DESCRIPTION
Sodium Metabisulfite occurs as colorless crystals or as a white to yellow, crystalline powder. It is freely soluble in water and slightly soluble in alcohol. Its solutions are acid to litmus.
Function: Preservative; antioxidant.
REQUIREMENTS
Identification: A 1:10 aqueous solution gives positive tests for Sodium and for Sulfite.
Assay: Not less than 90.0% and not more than 100.5% of Na2S2O5.
Iron: Not more than 10 mg/kg.
Lead: Not more than 2 mg/kg.
Selenium: Not more than 5 mg/kg.
Sodium Metabisulfite Analytical Reagent Grade Specifications
Disodium Disulfite
Na2S2O5
Formula Weight 190.11
CAS Number 7681-57-4
REQUIREMENTS
Assay: minimum 97.0% Na2S2O5
MAXIMUM ALLOWABLE
Insoluble matter: 0.005%
Chloride (Cl): 0.05%
Thiosulfate (S2O3): 0.05%
Heavy metals (as Pb): 0.001% Iron (Fe): 0.002%
The Uses of Sodium Metabisulfite or Sodium Metabisulphite:
Sodium metabisulphite is used as an antioxidant agent in many pharmaceutical formulations. It is extensively used as a food preservative and disinfectant. Sodium metabisulfite is added as an excipient to medications which contain adrenaline, in order to prevent the oxidation of adrenaline. It is widely used as an antioxidant in pharmaceutical formulations. It is the most commonly used preservative for baked goods, wines, jams, cookies. It acts as a reducing agent in the dough, it helps in making batter softer. Sodium metabisulfite is an ingredient used in products to treat dehydration and replace electrolytes. It is a preservative used to extend the shelf life of meat products. Sodium Metabisulfite is widely used as preservative, antioxidant, bleach, color fixative and leavening agent in food production.
The MSDS-SDS Hazard Statement of Sodium Metabisulfite or Sodium Metabisulphite:
Sodium Metabisulfite or Sodium Metabisulphite SDS, Safety Data Sheet
MSDS Sheet, Material Safety Data Sheet 25-Jan-23
1. Product Identification
Product Name & Other Names: Sodium Metabisulfite or Sodium Metabisulphite or Disulfurous acid, Disodium salt or Fertisilo or Pyrosulfurous acid, disodium salt or Sodium disulfite or Disodium pyrosulfite or Sodium pyrosulfite.
CAS No.: 7681-57-4 Sodium Metabisulfite or Sodium Metabisulphite.
EINECS EC Number: 231-673-0
Molecular Weight: 190.11
Chemical Formula: Na2S2O5 (sodium metabisulfite)
Relevant uses and uses advised against (if any): Industrial Manufacturing.
2. Hazards Identification
GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Classification according to Regulation (EC) No 1272/2008
Acute toxicity, oral Category 4, H302
Acute toxicity, dermal Category 5, H315
Serious eye damage/eye irritation Category 1, H318
Labeling according to GHS USA & Regulation (EC) No 1272/2008
GHS Label Elements  Corrosive |
Signal Words: Danger
Hazard statements:
H302: Harmful if swallowed.
H315: Causes skin irritation.
H318: Causes serious eye damage.
EUH031: Contact with acids liberates toxic gas.
Precautionary statements:
P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
P264 Wash with plenty of water and soap thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P281: Wear protective equipment for hands, eyes, face and respiratory tract.
P270: Do not eat, drink or smoke when using this product.
P301+P312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
P302+P352: IF ON SKIN: Wash with plenty of soap and water.
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P332+P313 : If skin irritation occurs: Get medical advice/attention.
3. Composition/Information on Ingredients
Product Name & Other Names: Sodium Metabisulfite or Sodium Metabisulphite or Disulfurous acid, Disodium salt or Fertisilo or Pyrosulfurous acid, disodium salt or Sodium disulfite or Disodium pyrosulfite or Sodium pyrosulfite.
CAS No.: 7681-57-4
EINECS EC Number: 231-673-0
4. First Aid Measures
Always seek medical attention after first aid measures are provided.
Inhalation: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention.
Ingestion: Induce vomiting immediately as directed by medical personnel. Never give anything by mouth to an unconscious person. Get medical attention.
Skin Contact: Wipe off excess material from skin then immediately flush skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Get medical attention. Wash clothing before reuse. Thoroughly clean shoes before reuse.
Eye Contact: Immediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper eyelids occasionally. Get medical attention immediately.
5. Fire Fighting Measures
Fire: Not considered to be a fire hazard.
Fire Extinguishing Media: Use any means suitable for extinguishing surrounding fire. Do not allow water runoff to enter sewers or waterways.
Special Information: In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full face piece operated in the pressure demand or other positive pressure mode. At high temperatures under fire conditions, it may produce toxic or irritating fumes. Fire-extinguishing work is done from the windward and the suitable fire-extinguishing method according to the surrounding situation is used.
6. Accidental Release Measures
Personal precautions, protective equipment, and emergency procedures: Avoid breathing dust/fumes/gas/mist/vapors/spray. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.). Do not approach facing the wind.
Environmental precautions: Do not let the product enter drains, soil, or water sources.
Methods and materials used for containment Cleanup procedures and Storage: Do not inhale dust, vapors, mist, or gas. Avoid dust formation. Contain spilled material. Cover with an inert, non-combustible absorbent material, (e.g. sand, earth, diatomaceous earth, vermiculite). Use a shovel to put the material into a convenient waste disposal container.
7. Handling and Storage
Precautions for safe handling: Apply according to good manufacturing and industrial hygiene practices. Ensure proper ventilation. In case of insufficient ventilation, wear suitable respiratory equipment. Wash thoroughly after handling. Do not drink, eat, or smoke while handling. Avoid contact with skin, eyes, and clothing. Minimize dust generation. Avoid breathing dust/fumes/gas/mist/vapors/spray. Keep container tightly closed. Avoid ingestion and inhalation. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.).
Conditions for safe storage, including any incompatibilities: Store in cool, dry, and ventilated area away from heat sources and protected from sunlight in tightly closed original container. Keep air contact to a minimum. Store protected from heat, sparks and ignition sources and incompatible materials. Avoid contact with skin and eyes. Avoid inhalation of dust/mist/vapor. Do not store with incompatible materials like strong oxidizing agents, acids, alkalis, sodium nitrite, aluminum powder. Avoid moisture, water, ice.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits: ACGIH Threshold Limit Value (TLV) 5mg/m3 (TWA)
Ventilation System: A system of local and/or general exhaust is recommended to keep employee exposures below the Airborne Exposure Limits.
Personal Respirators (NIOSH Approved): If the exposure limit is exceeded, a half-face respirator with an acid gas cartridge may be worn for up to ten times the exposure limit or the maximum use concentration specified by the appropriate regulatory agency or respirator supplier, whichever is lowest.
Skin Protection: Wear impervious protective clothing, including boots, gloves, lab coat, apron, or coveralls, as appropriate, to prevent skin contact. (neoprene, polyvinyl chloride).
Eye Protection: Use chemical safety goggles and/or full-face shield where dusting or splashing of solutions is possible. Maintain eye wash fountain and quick-drench facilities in work area.
Other Control Measures: Maintain good housekeeping in work area. Handle in accordance with good industrial hygiene and safety practice.
9. Physical and Chemical Properties
Appearance: White to yellow white crystalline granules.
Odor: Slight odor of sulfur dioxide.
Odor threshold: Not available.
pH: Aqueous solution is acidic.
Relative density: around 1.48
Melting Point: 150C (302F).
Initial boiling point and boiling range: Not available.
Flash point: Not available.
Auto-ignition temperature: Not available.
Decomposition temperature: Not available.
Upper/lower flammability or explosive limits: Not available.
Vapor pressure: Not available.
Vapor density: Not available.
Evaporation rate: Not available.
Flammability (solid, gas): Not available.
Partition coefficient: n-octanol/water: Not available.
Solubility: Very soluble in water, insoluble in alcohol.
Viscosity: Not available.
10. Stability and Reactivity
Stability: Product is normally stable. Air and moisture sensitive and releases sulfur dioxide slowly at ambient temperatures. Sodium Metabisulfite will decompose on heating to form sodium sulfate. Contact with moisture (water, wet ice, etc.), will release toxic sulfur dioxide gas.
Hazardous Decomposition Products: Oxides of sulfur and sodium may form when heated to decomposition.
Hazardous Polymerization: Will not occur.
Incompatibilities: Water, acids, alkalis, sodium nitrite, oxidizers, aluminum powder.
Conditions to Avoid: Moisture, heat, flames, ignition sources and incompatibles.
11. Toxicological Information
LD50 Oral - Rat - 1.540 mg/kg
LD50 Dermal - Rat - > 2.000 mg/kg
Carcinogenicity: No component of this product present at levels greater than or equal to 0.1% is identified as possible or confirmed human carcinogen by IARC, ACGIH, OSHA and NTP.
Mutagenic Effects: Not available.
Developmental Toxicity: Not available.
Reproductive Effects: No information available.
12. Ecological Information
Toxicity to fish: LC50 - Oncorhynchus mykiss (rainbow trout) - 150 - 220 mg/l - 96 h
Toxicity to daphnia and other aquatic invertebrates: EC50 - Daphnia magna (Water flea) - 89 mg/l - 24 h
Toxicity to algae: IC50 - Desmodesmus subspicatus (green algae) - 48 mg/l - 72 h
Toxicity to bacteria: Pseudomonas putida - 56 mg/l - 17 h
Results of PBT and vPvB assessment: This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility.
14. Transport Information
DOT USA, TDG Canada & ADR/RID Europe: Not controlled.
IMDG/IMO: Not controlled.
IATA/ICAO: Not controlled.
15. Regulatory Information
USA:
SARA 311/312: See section 2.
Section 16 - Additional Information
DISCLAIMER: The information and recommendations set forth herein are presented in good faith and believed correct as of the date hereof. It is compiled from various sources and it is not necessarily all inclusive nor fully adequate in every circumstance. In addition, these suggestions should not be confused with nor followed in violation of applicable laws, regulations, rules or insurance requirements applicable. This MSDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose.
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Sodium Metabisulfite or Sodium Metabisulphite Structure
CAS Number 7681-57-4, Sodium Metabisulfite or Sodium Metabisulphite Manufacturer Exporter
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Copyright. 10-dec-24
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