Phenylarsonic Acid
- CAS Number
- 98-05-5
- HSN Code
- 29181190
- Molecular Formula
- C6H5AsO(OH)2
- Catalogue Number
- AL3489
- Purity
- 98.5% min
- Molecular Weight
- 202.04 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Phenylarsonic acid is an organoarsonic acid and a member of arsonic acids. It is a conjugate acid of a phenylarsonate(1-).
Also known as 4-Hydroxyphenylarsinic acid.
- Catalogue No.
- AL3489
- CAS Number
- 98-05-5
- Molecular Formula
- C6H5AsO(OH)2
- Molecular Weight
- 202.04 g/mol
- HSN Code
- 29181190
- Grade
- AR (Analytical Reagent)
- Product Form
- Substance
Melting point: 158 °C (with decomp); Density: 1.760 at 25 °C; Solubility: Sol in 40 parts water, 50 parts alcohol; insol in chloroform.
- Appearance
- Crystal powder
- Shelf Life
- 2 years
- Packaging
- Available in: 5 gm glass bottle, 25 gm glass bottle
- Storage
- Separated from food and feedstuffs. Dry.
1.1 — Product identifier
- Chemical Name
- Phenylarsonic Acid
- Catalogue No.
- AL3489
- Product form
- Substance
- CAS Number
- 98-05-5
- EC Number
- 202-631-9
- Grade
- AR
- EC Index Number
- not applicable
- Chemical Formula
- C6H5AsO(OH)2
- HSN Code
- 29181190
- Synonyms
- 4-Hydroxyphenylarsinic acid
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Used as a reference compound in organoarsenic chemistry research.
- 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
2.1 — Classification of the substance or mixture
- Classification according to Regulation (EC) No 1272/2008
- Acute Tox. 3; Aquatic Acute 1; Aquatic Chronic 1
- Classification source
- ECHA C&L Inventory via PubChem CID 7365 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Acute Toxic, Environmental Hazard
- Signal word
- Danger
- Hazard statements
- H301: Toxic if swallowed; H331: Toxic if inhaled; H400: Very toxic to aquatic life; H410: Very toxic to aquatic life with long lasting effects
- Precautionary statements
- P261, P264, P270, P271, P273, P301+P316, P304+P340, P316, P321, P330, P391, P403+P233, P405, P501
2.3 — Other hazards
- Other hazards
- May cause damage to organs through prolonged or repeated exposure.
3.1 — Substance
- Name
- Phenylarsonic Acid
- CAS No.
- 98-05-5
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. Seek medical attention if irritation develops.
- First-aid measures after eye contact
- Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing and seek medical attention.
- First-aid measures after ingestion
- Do not induce vomiting. Rinse mouth and seek medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Symptoms of exposure may include headache, dizziness, nausea, and respiratory distress.
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
- Toxic fumes may be released in a fire. Use water spray to cool containers.
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. Wear appropriate protective equipment.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT wash away into sewer. Sweep spilled substance into covered sealable containers. Carefully collect remainder.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle with care. Use appropriate personal protective equipment (PPE).
- 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
- Separated from food and feedstuffs. Dry.
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 a respirator if exposure limits are exceeded or if irritation occurs.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 158 °C (with decomp)
- Freezing point
- Not applicable
- Boiling point
- Not applicable
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- > 200 °C
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.760 at 25 °C
- Solubility
- Sol in 40 parts water, 50 parts alcohol; insol in chloroform
- Log Pow
- log Kow= 0.06
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidising
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions. Avoid contact with strong oxidizing agents.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- Decomposes on heating. This produces toxic fumes including arsenic (see ICSC 0013).
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong oxidizing agents, strong acids.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- When heated to decomposition it emits toxic fumes of arsenic.
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 Mouse oral 270 ug/kg; LD50 Rabbit iv 16 mg/kg
- Skin corrosion/irritation
- Not classified (based on available data)
- Serious eye damage/irritation
- Not classified (based on available data)
- Respiratory or skin sensitisation
- Not classified (based on available data)
- Germ cell mutagenicity
- Not classified (based on available data)
- Carcinogenicity
- Not classified (based on available data)
- Specific target organ toxicity (single exposure)
- Not classified (based on available data)
- Specific target organ toxicity (repeated exposure)
- Not classified (based on available data)
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 3465
- UN-No. (IMDG)
- UN 3465
- UN-No. (IATA)
- UN 3465
- UN-No. (ADN)
- UN 3465
- UN-No. (RID)
- UN 3465
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Phenylarsonic Acid
- Proper Shipping Name (IMDG)
- Phenylarsonic Acid
- Proper Shipping Name (IATA)
- Phenylarsonic Acid
- Proper Shipping Name (ADN)
- Phenylarsonic Acid
- Proper Shipping Name (RID)
- Phenylarsonic Acid
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 6.1
14.4 — Packing group
- Packing group (ADR)
- I
- Packing group (IMDG)
- I
- Packing group (IATA)
- I
- Packing group (ADN)
- I
- Packing group (RID)
- I
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
As precipitant in niobium analysis.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1169A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 202.04 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | 98.5% min | 98.7% |
| Moisture Content | < 0.5% | 0.3% |
| Residue on Ignition | < 0.1% | 0.05% |
| Related Substances | None detected | None detected |
The above product is expected to comply with AR grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| AR | 98.5% min | m.p. 158 °C (with decomp) | < 0.5% | < 0.1% | None detected | Sol in 40 parts water, 50 parts alcohol; insol in chloroform |
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