Product name | Sodium metabisulfite |
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Product number | - |
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Other names | Sodium pyrosulfite |
Identified uses | For industry use only. Preservatives and Antioxidants |
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Uses advised against | no data available |
Company | MOLBASE (Shanghai) Biotechnology Co., Ltd. |
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Address | Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road, Xuhui District, Shanghai, China |
Telephone | +86(21)64956998 |
Fax | +86(21)54365166 |
Emergency phone number | +86-400-6021-666 |
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Service hours | Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours). |
Acute toxicity - Oral, Category 4
Serious eye damage, Category 1
2.2 GHS label elements, including precautionary statementsPictogram(s) | ![]() ![]() |
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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/…if 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/… |
Storage | none |
Disposal | P501 Dispose of contents/container to ... |
none
3.Composition/information on ingredients 3.1 SubstancesChemical name | Common names and synonyms | CAS number | EC number | Concentration |
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Sodium metabisulfite | Sodium metabisulfite | 7681-57-4 | none | 100% |
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaledFresh air, rest.
In case of skin contactFirst rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again.
In case of eye contactFirst rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
If swallowedRinse mouth. Give one or two glasses of water to drink. Refer for medical attention .
4.2 Most important symptoms/effects, acute and delayedExposure Routes: inhalation, ingestion, skin and/or eye contact Symptoms: Irritation eyes, skin, mucous membrane Target Organs: Eyes, skin, respiratory system (NIOSH, 2016)
4.3 Indication of immediate medical attention and special treatment needed, if necessary/SRP:/ Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on the left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Poisons A and B/
5.Fire-fighting measures 5.1 Extinguishing media Suitable extinguishing mediaIf material /is/ involved in /a/ fire: Use dry chemical, dry sand, or carbon dioxide. Do not use water on material itself. If large quantities of combustibles are involved, use water in flooding quantities as spray and fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
5.2 Specific hazards arising from the chemicalExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]: Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. For electric vehicles or equipment, ERG Guide 147 (lithium ion batteries) or ERG Guide 138 (sodium batteries) should also be consulted. (ERG, 2016)
5.3 Special protective actions for fire-fightersWear self-contained breathing apparatus for firefighting if necessary.
6.Accidental release measures 6.1 Personal precautions, protective equipment and emergency proceduresUse personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.
6.2 Environmental precautionsDo NOT absorb in saw-dust or other combustible absorbents. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Personal protection: P2 filter respirator for harmful particles. Do NOT let this chemical enter the environment.
6.3 Methods and materials for containment and cleaning upPick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.
7.Handling and storage 7.1 Precautions for safe handlingAvoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilitiesSeparated from acids and strong oxidants.The bulk material should be stored in a well closed container, protected from light, in a cool, dry place.
8.Exposure controls/personal protection 8.1 Control parameters Occupational Exposure limit valuesRecommended Exposure Limit: 10 Hour Time-Weighted Average: 5 mg/cu m.
Biological limit valuesno data available
8.2 Appropriate engineering controlsHandle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.
8.3 Individual protection measures, such as personal protective equipment (PPE) Eye/face protectionSafety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protectionWear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.
Respiratory protectionWear dust mask when handling large quantities.
Thermal hazardsno data available
9.Physical and chemical propertiesPhysical state | white crystalline powder |
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Colour | White hexagonal crystals or powder |
Odour | In the presences of traces of water, it develops an odor of sulfur dioxide |
Melting point/ freezing point | 150ºC |
Boiling point or initial boiling point and boiling range | Decomposes (NIOSH, 2016) |
Flammability | Noncombustible SolidNot combustible. |
Lower and upper explosion limit / flammability limit | no data available |
Flash point | no data available |
Auto-ignition temperature | no data available |
Decomposition temperature | 150°C |
pH | 4,0-5,5 (10 % aqueous solution) |
Kinematic viscosity | no data available |
Solubility | In water:540 g/L (20 ºC) |
Partition coefficient n-octanol/water (log value) | -3.7 |
Vapour pressure | no data available |
Density and/or relative density | 1.48 |
Relative vapour density | no data available |
Particle characteristics | no data available |
no data available
10.2 Chemical stabilityOn exposure to air and moisture is slowly oxidized to sulfate.
10.3 Possibility of hazardous reactionsSODIUM METABISULFITE is incompatible with the following: Heat (decomposes) [Note: Slowly oxidized to the sulfate on exposure to air & moisture.] (NIOSH, 2016).
10.4 Conditions to avoidno data available
10.5 Incompatible materialsLarge scale addition of solid sodium disulfite to an unstirred and too-concentrated solution of sodium nitrite caused a vigorous exothermic reaction.
10.6 Hazardous decomposition productsDecomposes on heating with ultimate formation of sodium sulfate.
11.Toxicological information Acute toxicity- Oral: LD50 Rat oral 1540 mg/kg bw
- Inhalation: no data available
- Dermal: no data available
no data available
Serious eye damage/irritationno data available
Respiratory or skin sensitizationno data available
Germ cell mutagenicityno data available
CarcinogenicityEvaluation: There is inadequate evidence for the carcinogenicity in humans of sulfur dioxide, sulfites, bisulfites and metabisulfites. There is limited evidence for the carcinogenicity in experimental animals of sulfur dioxide. There is inadequate evidence for the carcinogenicity in experimental animals of sulfites, bisulfites and metabisulfites. Overall evaluation: Sulfur dioxide, sulfites, bisulfites and metabisulfites are not classifiable as to their carcinogenicity to humans (Group 3).
Reproductive toxicityno data available
STOT-single exposureno data available
STOT-repeated exposureno data available
Aspiration hazardno data available
12.Ecological information 12.1 Toxicity- Toxicity to fish: LC50; Species: Lepomis macrochirus (Bluegill, length 2.8 cm); Conditions: freshwater, static, 22°C, pH 3.8-6.7, dissolved oxygen 41-58% saturated; Concentration: 32000-49000 ug/L for 24 hr /Technical
- Toxicity to daphnia and other aquatic invertebrates: no data available
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
no data available
12.3 Bioaccumulative potentialno data available
12.4 Mobility in soilno data available
12.5 Other adverse effectsno data available
13.Disposal considerations 13.1 Disposal methods ProductThe material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Contaminated packagingContainers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
14.Transport information 14.1 UN NumberADR/RID: Not dangerous goods. | IMDG: Not dangerous goods. | IATA: Not dangerous goods. |
ADR/RID: unknown |
IMDG: unknown |
IATA: unknown |
ADR/RID: Not dangerous goods. | IMDG: Not dangerous goods. | IATA: Not dangerous goods. |
ADR/RID: Not dangerous goods. | IMDG: Not dangerous goods. | IATA: Not dangerous goods. |
ADR/RID: no | IMDG: no | IATA: no |
no data available
14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Codeno data available
15.Regulatory information 15.1 Safety, health and environmental regulations specific for the product in questionChemical name | Common names and synonyms | CAS number | EC number |
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Sodium metabisulfite | Sodium metabisulfite | 7681-57-4 | none |
European Inventory of Existing Commercial Chemical Substances (EINECS) | Listed. | ||
EC Inventory | Listed. | ||
United States Toxic Substances Control Act (TSCA) Inventory | Listed. | ||
China Catalog of Hazardous chemicals 2015 | Not Listed. | ||
New Zealand Inventory of Chemicals (NZIoC) | Listed. | ||
Philippines Inventory of Chemicals and Chemical Substances (PICCS) | Listed. | ||
Vietnam National Chemical Inventory | Listed. | ||
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) | Listed. |
Creation Date | Aug 16, 2017 |
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Revision Date | Aug 16, 2017 |
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
- IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
- HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
- CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
- Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
- ECHA - European Chemicals Agency, website: https://echa.europa.eu/