2-naphthol SDS
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifier
- Product name： 2-naphthol
- CAS： 135-19-3
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.in
- Address：5 vasavi Layout Basaveswara Nilayam Pragathi Nagar Hyderabad, India -500090
- Telephone：+91 9550333722
SECTION 2: Hazards identification
Classification of the substance or mixture
Acute toxicity - Category 4, Oral
Acute toxicity - Category 4, Inhalation
Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1
GHS label elements, including precautionary statements
-
Pictogram(s)
- Signal word Warning
H302 Harmful if swallowed
H332 Harmful if inhaled
H400 Very toxic to aquatic life
P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
P273 Avoid release to the environment.
P301+P317 IF SWALLOWED: Get medical help.
P330 Rinse mouth.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317 Get medical help.
P391 Collect spillage.
none
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 which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
Substance
- Chemical name: 2-naphthol
- Common names and synonyms: 2-naphthol
- CAS number: 135-19-3
- EC number: 205-182-7
- Concentration: 100%
SECTION 4: First aid measures
Description of necessary first-aid measures
Fresh air, rest.
Rinse and then wash skin with water and soap.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention .
Most important symptoms/effects, acute and delayed
no data available
Indication of immediate medical attention and special treatment needed, if necessary
Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. Phenols and related compounds
SECTION 5: Firefighting measures
Suitable extinguishing media
Suitable extinguishing media: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Specific hazards arising from the chemical
Combustible. Finely dispersed particles form explosive mixtures in air.
Special protective actions for fire-fighters
Use water spray, powder, foam, carbon dioxide.
SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Do NOT let this chemical enter the environment.
Environmental precautions
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Do NOT let this chemical enter the environment.
Methods and materials for containment and cleaning up
Accidental Release Measures. Personal precautions, protective equipment and emergency procedures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. Environmental precautions: Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Methods and materials for containment and cleaning up: Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers for disposal.
SECTION 7: Handling and storage
Precautions for safe handling
NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. 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
Store in an area without drain or sewer access.Conditions for safe storage, including any incompatibilities: Keep container tightly closed in a dry and well-ventilated place. Light sensitive.
SECTION 8: Exposure controls/personal protection
Control parameters
| Component | 2-naphthol | |||
|---|---|---|---|---|
| CAS No. | 135-19-3 | |||
| Limit value - Eight hours | Limit value - Short term | |||
| ppm | mg/m3 | ppm | mg/m3 | |
| Latvia | ? | 0,1 | ? | ? |
| People's Republic of China | ? | 0,25 (2) | ? | 0,5 (1) (2) |
| Remarks | ||||
| People's Republic of China | (1) 15 minutes average value (2) also Pigment red 4 (CAS No 2814-77-9) | |||
no data available
Appropriate engineering 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, such as personal protective equipment (PPE)
Wear safety goggles or eye protection in combination with breathing protection if powder.
Protective gloves. Protective clothing.
Use local exhaust or breathing protection.
no data available
SECTION 9: Physical and chemical properties and safety characteristics
-
Physical state：
DryPowder,Liquid,OtherSolid
-
Colour：
White, lustrious, bulky leaflets or white powder. Darkens with age
-
Odour：
Faint phenol-like odor
-
Melting point/freezing point：
220°C(lit.)
-
Boiling point or initial boiling point and boiling range：
285-286°C(lit.)
-
Flammability：
Combustible.
-
Lower and upper explosion limit/flammability limit：
no data available
-
Flash point：
153°C
-
Auto-ignition temperature：
550°C
-
Decomposition temperature：
no data available
-
pH：
no data available
-
Kinematic viscosity：
no data available
-
Solubility：
In water, 7.55X10+2 mg/L at 25 deg C
-
Partition coefficient n-octanol/water：
log Kow = 2.70
-
Vapour pressure：
10 mm Hg ( 145.5 °C)
-
Density and/or relative density：
1.28
-
Relative vapour density：
4.97 (vs air)
-
Particle characteristics：
no data available
SECTION 10: Stability and reactivity
Reactivity
no data available
Chemical stability
Stable under recommended storage conditions.
Possibility of hazardous reactions
Flammability potential is slight.Dust explosion possible if in powder or granular form, mixed with air.
Conditions to avoid
no data available
Incompatible materials
Incompatible with antipyrine, camphor, phenol, ferric salts, menthol, potassium permanganate and other oxidizing materials, urethane.
Hazardous decomposition products
Special hazards arising from the substance or mixture: Carbon oxides.
SECTION 11: Toxicological information
Acute toxicity
- Oral: LD50 Rat oral 1960 mg/kg
- Inhalation: no data available
- Dermal: no data available
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 severely irritating to the eyes.
STOT-repeated exposure
Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the kidneys, blood and eyes. This may result in kidney impairment, anaemia and lens opacities.
Aspiration hazard
A harmful concentration of airborne particles can be reached quickly when dispersed.
SECTION 12: Ecological information
Toxicity
- Toxicity to fish: LC50; Species: Micropterus salmoides (Largemouth Bass) eggs and larvae; Conditions: freshwater, flow through, 20.2-23.2 deg C, pH 7.41-8.10, hardness 86.8-116.3 mg/L CaCO3, dissolved oxygen 7.1-8.4 mg/L; Concentration: 1000 ug/L for 7 days (95% confidence interval: 290-2270 ug/L)
- Toxicity to daphnia and other aquatic invertebrates: LC50; Species: Daphnia magna (Water Flea) age 24 hr, juvenile, first instar; Conditions: freshwater, static, 19.5-20.5 deg C; Concentration: 3540 ug/L for 48 hr (95% confidence interval: 3170-3950 ug/L)
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
Persistence and degradability
AEROBIC: 2-Naphthol, present at 100 mg/L, reached 68.4% of its theoretical BOD in 2 weeks using an activated sludge inoculum at 30 mg/L in the Japanese MITI test(1). In an OECD 301C test, 2-naphthol achieved an observed BOD of 68% after 28 days; the test substance is considered to be readily biodegradable under the conditions of the test(2). 2-Naphthol biodegraded 99.83, 99.98, 99.88, 99.90% after 100, 130, 150, 160 days, respectively, in a biodegradation study using activated sludge(3). Using adapted activated sludge as the inoculum, 2-naphthol degraded 89% based on COD removal at a biodegradation rate of 39.2 mg COD/g-hr(4). The biodegradation potential of 2-naphthol in diluted primary digested sludge was considered to be inhibitory to biodegradation after a lag period of more than 75 days(5). The 5-day BOD of 2-naphthol, present at 5 ppm, was 0.71 g/g or 27.8 of the Theoretical Oxygen Demand(6). In a Chernozem soil at 19 deg C, 2-naphthol existed for > 90 days at 500 mg/kg and for 30 days at 5 mg/kg(7). 2-Naphthol is considered to be recalcitrant in Chernozem soils(8).
Bioaccumulative potential
An estimated BCF of 28 was calculated in fish for 2-naphthol(SRC), using a log Kow of 2.7(1) and a regression-derived equation(2). According to a classification scheme(2), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).
Mobility in soil
The Koc of 2-naphtol is estimated as 390(SRC), using a log Kow of 2.7(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that 2-naphthol is expected to have moderate mobility in soil. The pKa of 2-naphthol is 9.51(4), indicating that this compound will exist partially in the anion form in the environment and anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(5).
Other adverse effects
no data available
SECTION 13: Disposal considerations
Disposal methods
The 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.
SECTION 14: Transport information
UN Number
ADR/RID: UN3077 (For reference only, please check.)
IMDG: UN3077 (For reference only, please check.)
IATA: UN3077 (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (For reference only, please check.)
IMDG: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (For reference only, please check.)
IATA: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S. (For reference only, please check.)
Transport hazard class(es)
ADR/RID: 9 (For reference only, please check.)
IMDG: 9 (For reference only, please check.)
IATA: 9 (For reference only, please check.)
Packing group, if applicable
ADR/RID: III (For reference only, please check.)
IMDG: III (For reference only, please check.)
IATA: III (For reference only, please check.)
Environmental hazards
ADR/RID: Yes
IMDG: Yes
IATA: Yes
Special precautions for user
no data available
Transport in bulk according to IMO instruments
no data available
SECTION 15: Regulatory information
Safety, health and environmental regulations specific for the product in question
SECTION 16: Other information
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/
Other Information
The substance may be transported in molten state at temperature 135-150°C.