Sodium Phosphate Dibasic Dodecahydrate
- CAS Number
- 10039-32-4
- HSN Code
- 28353900
- Molecular Formula
- Na2HPO4·12H2O
- Catalogue Number
- AL1409C
- Purity
- 99%
- Molecular Weight
- 358.14 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Sodium phosphate dibasic dodecahydrate is a white crystalline solid that serves as a versatile reagent in various analytical applications. With a high purity of 99%, this AR-grade compound is specifically designed for precise analytical use, ensuring reliable results in laboratory settings. It is commonly utilized in the preparation of phosphate buffers, which are essential in biochemical and molecular biology experiments. The compound's ability to maintain pH stability makes it a critical component in many biological assays and chemical reactions.
Also known as Disodium hydrogen phosphate dodecahydrate.
- Catalogue No.
- AL1409C
- CAS Number
- 10039-32-4
- Molecular Formula
- Na2HPO4·12H2O
- Molecular Weight
- 358.14 g/mol
- HSN Code
- 28353900
- Grade
- AR 99%
- Product Form
- Substance
Sodium phosphate dibasic dodecahydrate appears as a white crystalline solid. It has a melting point of approximately 34.6 °C (94.3 °F) and is highly soluble in water, with a solubility of about 50 g/100 mL at 20 °C. The density of the compound is around 1.65 g/cm³. It has a neutral pH when dissolved in water, typically around 7.0. The compound does not have a distinct odor, making it suitable for laboratory environments.
- Appearance
- White crystalline solid
- Shelf Life
- No specific shelf life provided; store in a cool, dry place.
- Packaging
- Available in various packaging options, typically in sealed containers to prevent moisture absorption.
- Storage
- Store in a cool, dry place, away from incompatible materials.
1.1 — Product identifier
- Chemical Name
- Sodium Phosphate Dibasic Dodecahydrate
- Catalogue No.
- AL1409C
- Product form
- Substance
- CAS Number
- 10039-32-4
- EC Number
- 233-307-2
- Grade
- AR 99%
- EC Index Number
- Na2HPO4·12H2O
- Chemical Formula
- Na2HPO4·12H2O
- HSN Code
- 28353900
- Synonyms
- Disodium hydrogen phosphate dodecahydrate
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Buffer component in analytical chemistry and biochemistry.
- 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
- None identified; general laboratory safety practices should be followed.
3.1 — Substance
- Name
- Sodium Phosphate Dibasic Dodecahydrate
- CAS No.
- 10039-32-4
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. If irritation persists, seek medical attention.
- First-aid measures after ingestion
- Rinse mouth. Do not induce vomiting. Seek medical attention if symptoms occur.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- May cause mild irritation to skin, eyes, and respiratory tract.
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
- Non-flammable; however, may decompose at high temperatures.
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
- Contain spill and collect using appropriate methods. Dispose of in accordance with local regulations.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Use appropriate personal protective equipment. Sweep up and place in a suitable container for disposal.
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.
- 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, 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
- Not required under normal conditions; use in well-ventilated areas.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- 7.0 (in solution)
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 34.6 °C (94.3 °F)
- Freezing point
- Not applicable
- Boiling point
- Not applicable
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Decomposes above 200 °C
- Flammability (solid, gas)
- Non-flammable
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.65 g/cm³
- Solubility
- 50 g/100 mL in water at 20 °C
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions; avoid strong acids and bases.
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 acids and bases.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Low toxicity; LD50 (oral, rat) > 2000 mg/kg.
- Skin corrosion/irritation
- May cause mild irritation.
- Serious eye damage/irritation
- May cause mild 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)
- Not assigned
- UN-No. (IMDG)
- Not assigned
- UN-No. (IATA)
- Not assigned
- UN-No. (ADN)
- Not assigned
- UN-No. (RID)
- Not assigned
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Not regulated
- Proper Shipping Name (IMDG)
- Not regulated
- Proper Shipping Name (IATA)
- Not regulated
- Proper Shipping Name (ADN)
- Not regulated
- Proper Shipping Name (RID)
- Not regulated
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- Not applicable
14.4 — Packing group
- Packing group (ADR)
- Not applicable
- Packing group (IMDG)
- Not applicable
- Packing group (IATA)
- Not applicable
- Packing group (ADN)
- Not applicable
- Packing group (RID)
- Not applicable
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
This compound is widely used in the preparation of phosphate buffers, which are crucial for maintaining pH in biochemical experiments. It is also employed in various analytical techniques, including chromatography and spectrophotometry, where precise pH control is necessary. Additionally, sodium phosphate dibasic dodecahydrate is utilized in the food industry as a food additive and in pharmaceuticals for its buffering properties. Its role in biological research extends to cell culture media preparation and enzyme assays, highlighting its importance across multiple scientific disciplines.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1409C
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 358.14 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 99% min | 99.5% |
| Moisture Content | < 0.5% | 0.3% |
| Residue on Ignition | < 0.1% | 0.05% |
| pH (1% solution) | 7.0 ± 0.2 | 7.0 |
| Solubility | Soluble in water | Fully soluble |
The above product is expected to comply with AR 99% grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| AR 99% | 99% | 34.6 °C | < 0.5% | < 0.1% | None detected | Soluble in water |
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