Sodium dithionite
Product identifier
- Product name: Sodium dithionite
- CBnumber: CB1155576
- CAS: 7775-14-6
- EINECS Number: 231-890-0
- Synonyms: Sodium dithionite,sodium hydrosulfite
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses: For R&D use only. Not for medicinal, household or other use.
- Uses advised against: none
Company Identification
- Company: Chemicalbook
- Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
- Telephone: 400-158-6606
Classification of the substance or mixture
Self- heating substances and mixtures, Category 1
Acute toxicity - Category 4, Oral
Label elements
Pictogram(s)
- Signal wordDanger
H251 Self-heating; may catch fire
H302 Harmful if swallowed
P235+P410 Keep cool. Protect from sunlight.
P407 Maintain air gap between stacks/pallets.
P413 Store bulk masses greater than … kg/…lbs at temperatures not exceeding … oC/…oF.
P420 Store away from other materials.
P235 Keep cool.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P301+P317 IF SWALLOWED: Get medical help.
P330 Rinse mouth.
P407 Maintain air gap between stacks or pallets.
P410 Protect from sunlight.
P413 Store bulk masses greater than … kg/…lbs at temperatures not exceeding …°C/…°F.
P420 Store separately.
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
no data available
Substance
- Product name: Sodium dithionite
- Synonyms: Sodium dithionite,sodium hydrosulfite
- CAS: 7775-14-6
- EC number: 231-890-0
- MF: Na2O4S2
- MW: 174.11
Description of first aid measures
If inhaledFresh air, rest. Seek medical attention if you feel unwell.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
Rinse with plenty of water (remove contact lenses if easily possible). Refer for medical attention.
Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink.
Most important symptoms and effects, both acute and delayed
no data available
Indication of any immediate medical attention and special treatment needed
no data available
Extinguishing media
Use dry chemical, carbon dioxide or alcohol-resistant foam.
Specific Hazards Arising from the Chemical
Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
Advice for firefighters
Use carbon dioxide, dry sand, special powder, water in large amounts.
NFPA 704
| HEALTH | 2 | Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury (e.g. diethyl ether, ammonium phosphate, iodine) | |
| FIRE | 1 | Materials that require considerable preheating, under all ambient temperature conditions, before ignition and combustion can occur. Includes some finely divided suspended solids that do not require heating before ignition can occur. Flash point at or above 93.3 °C (200 °F). (e.g. mineral oil, ammonia) | |
| REACT | 2 | Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water (e.g. white phosphorus, potassium, sodium) | |
| SPEC. HAZ. |
Personal precautions, protective equipment and emergency procedures
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT absorb in saw-dust or other combustible absorbents.
Environmental precautions
Prevent further spillage or leakage if it is safe to do so. Do not let the chemical enter drains. Discharge into the environment must be avoided.
Methods and materials for containment and cleaning up
Collect and arrange disposal. Keep the chemical in suitable and closed containers for disposal. Remove all sources of ignition. Use spark-proof tools and explosion-proof equipment. Adhered or collected material should be promptly disposed of, in accordance with appropriate laws and regulations.
Precautions for safe handling
NO open flames. NO contact with combustible substances or water. 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
Dry. Well closed. Separated from strong oxidants and acids. Store in an area without drain or sewer access.
Control parameters
Occupational Exposure limit valuesno data available
no data available
Exposure controls
Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.
Individual protection measures
Eye/face protectionWear safety goggles.
Protective gloves.
Use local exhaust or breathing protection.
no data available
Information on basic physicochemical properties
- Physical statePowder/Solid
- ColourWhite
- Odour
no data available
- Melting point/freezing point
100 (decomposition)
- Boiling point or initial boiling point and boiling range
197°C(lit.)
- Flammability
no data available
- Lower and upper explosion limit/flammability limit
no data available
- Flash point
85°C(lit.)
- Auto-ignition temperature
no data available
- Decomposition temperature
no data available
- pH5.5-8.5 (50g/l, H2O, 20℃)
- Kinematic viscosity
no data available
- Solubility250 g/L (20°C)
- Partition coefficient n-octanol/water
<-4.7
- Vapour pressure
no data available
- Density and/or relative density
2.38 g/cm3. Temperature:20 °C.
- Relative vapour density
no data available
- Particle characteristics
no data available
Reactivity
no data available
Chemical stability
no data available
Possibility of hazardous reactions
Decomposes above 100°C . This produces toxic fumes including sulfur oxides. The substance is a strong reducing agent. It reacts with oxidants. Decomposes on contact with acids. This produces toxic gases. Contact with water, moisture and moist air may cause spontaneous ignition.
Conditions to avoid
no data available
Incompatible materials
no data available
Hazardous decomposition products
no data available
Acute toxicity
- Oral: LD50 - rat (male/female) - ca. 2 500 mg/kg bw. Remarks:The LD50 was estimated to be approx. 2500 mg/kg bw.
- Inhalation: LC50 - rat (male) - > 5.5 mg/L air.
- Dermal: LD50 - rat (male) - > 2 000 mg/kg bw.
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
no data available
Reproductive toxicity
no data available
STOT-single exposure
The substance is irritating to the eyes and respiratory tract.
STOT-repeated exposure
no data available
Aspiration hazard
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered.
Toxicity
- Toxicity to fish: LC50 - Leuciscus idus - 62.3 mg/L - 96 h.
- Toxicity to daphnia and other aquatic invertebrates: EC50 - Daphnia magna - 98.31 mg/L - 48 h.
- Toxicity to algae: EC50 - Desmodesmus subspicatus (previous name: Scenedesmus subspicatus) - 206.2 mg/L - 72 h.
- Toxicity to microorganisms: EC50 - activated sludge of a predominantly domestic sewage - 187.6 mg/L - 3 h. Remarks:Respiration rate.
Persistence and degradability
no data available
Bioaccumulative potential
no data available
Mobility in soil
no data available
Other adverse effects
no data available
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.
Containers 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.
UN Number
ADR/RID: UN1384 (For reference only, please check.)
IMDG: UN1384 (For reference only, please check.)
IATA: UN1384 (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: SODIUM DITHIONITE (SODIUM HYDROSULPHITE) (For reference only, please check.)
IMDG: SODIUM DITHIONITE (SODIUM HYDROSULPHITE) (For reference only, please check.)
IATA: SODIUM DITHIONITE (SODIUM HYDROSULPHITE) (For reference only, please check.)
Transport hazard class(es)
ADR/RID: 4.2 (For reference only, please check.)
IMDG: 4.2 (For reference only, please check.)
IATA: 4.2 (For reference only, please check.)
Packing group, if applicable
ADR/RID: II (For reference only, please check.)
IMDG: II (For reference only, please check.)
IATA: II (For reference only, please check.)
Environmental hazards
ADR/RID: No
IMDG: No
IATA: No
Special precautions for user
no data available
Transport in bulk according to IMO instruments
no data available
Safety, health and environmental regulations specific for the product in question
European Inventory of Existing Commercial Chemical Substances (EINECS)Abbreviations and acronyms
- 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%
References
- 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/
The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.