Sodium Dithionite
- CAS Number
- 7775-14-6
- HSN Code
- 28311010
- Molecular Formula
- Na2S2O4
- Catalogue Number
- AL1374A
- Purity
- 85%
- Molecular Weight
- 174.11 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Sodium dithionite, with a CAS number of 7775-14-6, is a white to pale gray crystalline powder that serves as a powerful reducing agent. This specific grade is purified for molecular biology applications, particularly in redox biochemistry and metalloprotein research. Its notable properties include a sulfurous odor and a high purity level of 85%, making it suitable for sensitive biochemical experiments. Sodium dithionite is recognized for its ability to donate electrons in various chemical reactions, which is essential in studying the redox states of metalloproteins.
Also known as Disodium dithionite, Sodium hydrosulfite.
- Catalogue No.
- AL1374A
- CAS Number
- 7775-14-6
- Molecular Formula
- Na2S2O4
- Molecular Weight
- 174.11 g/mol
- HSN Code
- 28311010
- Grade
- For Molecular Biology
- Product Form
- Substance
Sodium dithionite appears as a white to pale gray crystalline powder with a characteristic sulfurous odor. It has a melting point of approximately 190 °C (decomposes), and its solubility in water is quite high, around 50 g/L at 20 °C. The density of sodium dithionite is about 1.5 g/cm³. It is known to be hygroscopic, meaning it can absorb moisture from the air, which can lead to spontaneous combustion when in contact with moisture. The compound is stable under dry conditions but should be stored away from heat sources and moisture to prevent degradation.
- Appearance
- White to pale gray crystalline powder
- Shelf Life
- 2 years
- Packaging
- Available in 100 g and 500 g containers
- Storage
- Store in a cool, dry place away from moisture and heat.
1.1 — Product identifier
- Chemical Name
- Sodium Dithionite
- Catalogue No.
- AL1374A
- Product form
- Substance
- CAS Number
- 7775-14-6
- EC Number
- 231-890-0
- Grade
- For Molecular Biology
- EC Index Number
- 016-020-00-1
- Chemical Formula
- Na2S2O4
- HSN Code
- 28311010
- Synonyms
- Disodium dithionite, Sodium hydrosulfite
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Reducing agent in biochemical applications
- Uses advised against
- Not specified
1.3 — Details of the supplier of the safety data sheet
- Company identification
- Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 — Emergency Contact Details
- Phone / e-Mail
- Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
2.3 — Other hazards
- Other hazards
- Spontaneously combustible when moist or exposed to air
3.1 — Substance
- Name
- Sodium Dithionite
- CAS No.
- 7775-14-6
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. If symptoms persist, seek medical attention.
- First-aid measures after skin contact
- Wash with soap and water. If irritation occurs, seek medical attention.
- First-aid measures after eye contact
- Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Seek medical attention if irritation persists.
- First-aid measures after ingestion
- Rinse mouth. Do not induce vomiting. Seek medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- May cause respiratory irritation, skin irritation, and eye irritation.
4.3 — Indication of any immediate medical attention and special treatment needed
- General information
- Treat symptomatically. Show this safety data sheet to the treating physician.
5.1 — Extinguishing media
- Suitable extinguishing media
- Water spray, carbon dioxide, dry chemical powder, foam.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- May ignite spontaneously in moist conditions; use dry chemical, foam, or carbon dioxide to extinguish.
5.3 — Advice for firefighters
- Protection during firefighting
- Do not enter fire area without proper protective equipment, including respiratory protection.
6.1.1 — For non-emergency personnel
- Emergency procedures
- Evacuate area and ventilate. Avoid dust formation. Use appropriate personal protective equipment.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Collect spillage with non-combustible absorbent material and dispose of in accordance with local regulations.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Avoid contact with skin and eyes. Use in a well-ventilated area. Keep away from moisture and heat.
- Hygiene measures
- Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 — Conditions for safe storage, including any incompatibilities
- Storage conditions
- Store in a cool, dry place, in tightly closed containers, away from incompatible materials.
8.2 — Exposure controls
- Hand protection
- Protective gloves (e.g. nitrile rubber)
- Eye protection
- Chemical safety goggles or safety glasses
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Use appropriate respiratory protection if dust is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White to pale gray
- Odour
- Sulfurous
- Odour threshold
- Not specified
- pH value
- Not specified
- Relative evaporation rate (butylacetate=1)
- Not specified
- Melting point
- 190 °C (decomposes)
- Freezing point
- Not specified
- Boiling point
- Not specified
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- 190 °C
- Flammability (solid, gas)
- Combustible when moist
- Vapour pressure
- Not specified
- Relative vapour density at 20°C
- Not specified
- Density
- 1.5 g/cm³
- Solubility
- 50 g/L in water at 20 °C
- Log Pow
- Not specified
- Viscosity, kinematic
- Not specified
- Viscosity, dynamic
- Not specified
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under dry conditions; reacts with moisture and air.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- No dangerous reactions known under normal conditions of use.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong oxidizers, acids, and moisture.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Low toxicity; may cause irritation.
- Skin corrosion/irritation
- May cause skin irritation.
- Serious eye damage/irritation
- May cause eye irritation.
- Respiratory or skin sensitisation
- Not a sensitizer.
- Germ cell mutagenicity
- Not classified
- Carcinogenicity
- Not classified
- Specific target organ toxicity (single exposure)
- Not classified as a specific target organ toxicant.
- Specific target organ toxicity (repeated exposure)
- Not classified
12.1 — Toxicity
- Toxicity information
- Not specified
12.2 — Persistence - degradability
- Persistence - degradability
- Not specified
12.3 — Bioaccumulative potential
- Bioaccumulative potential
- Not specified
12.4 — Mobility in soil
- Mobility in soil
- Not specified
12.6 — Other adverse effects
- Environmental precautions
- Not specified
13.1 — Waste treatment methods
- Additional Info
- Dispose of contents/container in accordance with local, regional, national and international regulations.
14.1 — UN number
- UN-No. (ADR)
- UN 1384
- UN-No. (IMDG)
- UN 1384
- UN-No. (IATA)
- UN 1384
- UN-No. (ADN)
- UN 1384
- UN-No. (RID)
- UN 1384
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Sodium Dithionite
- Proper Shipping Name (IMDG)
- Sodium Dithionite
- Proper Shipping Name (IATA)
- Sodium Dithionite
- Proper Shipping Name (ADN)
- Sodium Dithionite
- Proper Shipping Name (RID)
- Sodium Dithionite
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 4.2
14.4 — Packing group
- Packing group (ADR)
- II
- Packing group (IMDG)
- II
- Packing group (IATA)
- II
- Packing group (ADN)
- II
- Packing group (RID)
- II
14.5 — Environmental hazards
- Dangerous for the environment
- Not specified
- Marine pollutant
- Not specified
- Other information
- No supplementary information available
15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture
- 15.1.1 EU-Regulations
- Not specified
Sodium dithionite is primarily used as a strong reducing agent in various biochemical applications, particularly in the field of molecular biology. It plays a crucial role in redox-state biochemistry research, where it is employed to reduce metal ions in metalloproteins, facilitating the study of their electronic properties and reactivity. Additionally, it is utilized in the textile industry for dye reduction and in the synthesis of other chemicals. Its ability to act as a reducing agent makes it valuable in analytical chemistry for the determination of certain metal ions and in environmental chemistry for the treatment of wastewater.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1374A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 174.11 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay Purity | 85% min | 85.5% |
| Moisture Content | <5% | 3.2% |
| Residue on Ignition | <1% | 0.5% |
| Related Substances | None detected | None detected |
| Solubility | 50 g/L in water at 20 °C | 52 g/L in water at 20 °C |
The above product is expected to comply with For Molecular Biology grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| For Molecular Biology | 85% | 190 °C (decomposes) | <5% | <1% | None detected | 50 g/L in water at 20 °C |
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