Sodium phosphate monobasic dihydrate
- CAS Number
- 13472-35-0
- HSN Code
- 28352200
- Molecular Formula
- NaH2PO4·2H2O
- Catalogue Number
- AL01410
- Purity
- 98% min
- Molecular Weight
- 156.01 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Sodium phosphate monobasic dihydrate, also known as sodium acid phosphate, is a widely utilized buffer salt in various biochemical applications. This compound is notable for its ability to maintain pH stability in solutions, making it essential in laboratory settings. With a purity of 98%, it is commonly used in the preparation of phosphate-buffered saline (PBS) and cell culture media. Its molecular weight of 156.01 g/mol and CAS number 13472-35-0 further identify its chemical identity and ensure consistency in research and industrial applications.
Also known as Sodium acid phosphate, NaH2PO4·2H2O.
- Catalogue No.
- AL01410
- CAS Number
- 13472-35-0
- Molecular Formula
- NaH2PO4·2H2O
- Molecular Weight
- 156.01 g/mol
- HSN Code
- 28352200
- Grade
- 98%
- Product Form
- Substance
Sodium phosphate monobasic dihydrate appears as a white crystalline powder. It is freely soluble in water, allowing for easy incorporation into various solutions. The melting point of this compound is approximately 60 °C, and it has a boiling point of 100 °C when dissolved in water. The density of the dihydrate form is around 1.62 g/cm³. It has a pH value of approximately 4.5 in a 1% aqueous solution, which is indicative of its acidic nature. The compound does not have a distinct odor, making it suitable for laboratory environments.
- Appearance
- White crystalline powder
- Shelf Life
- -
- Packaging
- -
- Storage
- Store in a cool, dry place away from incompatible materials.
1.1 — Product identifier
- Chemical Name
- Sodium phosphate monobasic dihydrate
- Catalogue No.
- AL01410
- Product form
- Substance
- CAS Number
- 13472-35-0
- EC Number
- 236-633-0
- Grade
- 98%
- EC Index Number
- Not specified
- Chemical Formula
- NaH2PO4·2H2O
- HSN Code
- 28352200
- Synonyms
- Sodium acid phosphate, NaH2PO4·2H2O
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Buffering 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
- None identified
3.1 — Substance
- Name
- Sodium phosphate monobasic dihydrate
- CAS No.
- 13472-35-0
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 such as strong bases and strong oxidizers.
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 of use.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- 4.5 (1% solution)
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 60 °C
- Freezing point
- Not applicable
- Boiling point
- 100 °C (in solution)
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not specified
- Flammability (solid, gas)
- Non-flammable
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.62 g/cm³
- Solubility
- Freely soluble in water
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not applicable
- Oxidising properties
- Not applicable
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions; avoid strong bases and strong oxidizers.
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 bases, strong oxidizers
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Low toxicity; no significant effects expected with normal handling.
- Skin corrosion/irritation
- May cause mild irritation.
- Serious eye damage/irritation
- May cause mild irritation.
- Respiratory or skin sensitisation
- Not expected to be 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 classified as dangerous goods
- Proper Shipping Name (IMDG)
- Not classified as dangerous goods
- Proper Shipping Name (IATA)
- Not classified as dangerous goods
- Proper Shipping Name (ADN)
- Not classified as dangerous goods
- Proper Shipping Name (RID)
- Not classified as dangerous goods
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
Sodium phosphate monobasic dihydrate is primarily used as a buffering agent in biological and chemical research. It plays a crucial role in the formulation of phosphate-buffered saline (PBS), which is widely used in cell culture and molecular biology applications. Additionally, it is utilized in the preparation of various laboratory reagents and in the pharmaceutical industry for drug formulation. Its buffering capacity makes it essential in maintaining the pH of solutions in enzymatic reactions and other biochemical processes.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01410
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 156.01 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 98% min | 98.5% |
| Moisture Content | < 1% | 0.5% |
| Residue on Ignition | < 0.5% | 0.3% |
| pH (1% solution) | 4.5 | 4.5 |
| Solubility | Freely soluble | Freely soluble in water |
The above product is expected to comply with 98% grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 98% | 98% min | 60 °C | < 1% | < 0.5% | None detected | Freely soluble in water |
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