91-59-8 structure, C10H9N
2-naphthylamine
CAS No.: 91-59-8 Formula: C10H9N Molecular Weight: 143.18500
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2-naphthylamine

CAS No.:

91-59-8

Formula:

C10H9N

Molecular Weight: 143.18500
Suppliers: All (34) China Suppliers (34) Price Available (6) Contractor (2)

Description

2-Naphthylamine is one of two isomeric aminonaphthalenes, compounds with the formula C10H7NH2. It is a colorless solid, but samples take on a reddish color in air because of oxidiation. The aromatic amine used to be used to make azo dyes. It is a known carcinogen and has largely been replaced by less toxic compounds.

Basic Info

Chemical Name

2-naphthylamine

Synonyms

2-Aminonaphthalene; 2-Naphthalenamine; 2-Naphthylamine; 2-Naftylamine; USAF CB-22; 2-amino-naphthalene; 2-Naftylamin; naphthalen-2-ylamine; naphthalene-2-amine; Expand

CAS No.

91-59-8

Molecular Formula

C10H9N

Molecular Weight

143.18500

PSA

26.02000

LogP

3.00320

Numbering system

MDL number MFCD00004112
EINECS number 202-080-4

Properties

Appearance & Physical State

yellow powder

Density

1.061

Boiling Point

306ºC

Melting Point

111-113ºC

Flash Point

157.1ºC

Refractive Index

1.6493 (98ºC)

Stability

Stable. Incompatible with strong oxidizing agents.

Storage Condition

Keep in cool dry location away from ignition sources.

Safety Info

RTECS

QM2100000

Hazard Class

6.1(a)

Safety Statements

S53-S45-S61

HS Code

2921450010

WGK Germany

3

Packing Group

II

RIDADR

UN 1650

Risk Statements

R45; R22; R51/53

Hazard Codes

T; N

SDS 1.0

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SDS 1.0

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SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-naphthylamine

1.2 Other means of identification

Product number -
Other names 2-Naftylamine

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

Company MOLBASE (Shanghai) Biotechnology Co., Ltd.
Address Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road,
Xuhui District, Shanghai, China
Telephone +86(21)64956998
Fax +86(21)54365166

1.5 Emergency phone number

Emergency phone number +86-400-6021-666
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

Acute toxicity - Oral, Category 4

Carcinogenicity, Category 1A

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H302 Harmful if swallowed

H350 May cause cancer

H411 Toxic to aquatic life with long lasting effects

Precautionary statement(s)
Prevention

P264 Wash ... thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

P201 Obtain special instructions before use.

P202 Do not handle until all safety precautions have been read and understood.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P273 Avoid release to the environment.

Response

P301+P312 IF SWALLOWED: Call a POISON CENTER/doctor/…if you feel unwell.

P330 Rinse mouth.

P308+P313 IF exposed or concerned: Get medical advice/ attention.

P391 Collect spillage.

Storage

P405 Store locked up.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
2-naphthylamine 2-naphthylamine 91-59-8 none 100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

Fresh air, rest. Refer for medical attention.

In case of skin contact

Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer immediately for medical attention .

In case of eye contact

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

If swallowed

Rinse mouth. Refer for medical attention .

4.2 Most important symptoms/effects, acute and delayed

Excerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]: TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. (ERG, 2016)

4.3 Indication of immediate medical attention and special treatment needed, if necessary

Basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 mg/kg up to 200 mL of water for dilution if the patent can swallow, has a strong gag reflex, and does not drool. Administer activated charcoal ... . Cover skin bums with dry sterile dressings after decontamination ... . /Organic bases/Amines and related compounds/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

If material on fire or involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Use foam, dry chemical, or carbon dioxide. Keep run-off water out of sewers and water sources.

5.2 Specific hazards arising from the chemical

Excerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]: Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form. (ERG, 2016)

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 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. For personal protection see section 8.

6.2 Environmental precautions

Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.

6.3 Methods and materials for containment and cleaning up

Sweep spilled substance into covered containers. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Separated from food and feedstuffs. Well closed. Store in an area without drain or sewer access.Separated from food and feedstuffs. Well closed.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

NIOSH considers beta-naphthylamine to be a potential occupational carcinogen. NIOSH usually recommends that occupational exposures to carcinogens be limited to the lowest feasible concentration.

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state yellow powder
Colour COLORLESS CRYSTALS WHICH DARKEN IN AIR TO A REDDISH-PURPLE COLOR
Odour Faint aromatic odor
Melting point/ freezing point 111-113ºC
Boiling point or initial boiling point and boiling range 306ºC
Flammability Combustible SolidCombustible. Gives off irritating or toxic fumes (or gases) in a fire.
Lower and upper explosion limit / flammability limit no data available
Flash point 157.1ºC
Auto-ignition temperature no data available
Decomposition temperature no data available
pH WEAK BASE
Kinematic viscosity no data available
Solubility less than 1 mg/mL at 22.22°C
Partition coefficient n-octanol/water (log value) log Kow =2.28
Vapour pressure 1 mm Hg at 108°C ; 5 mm Hg at 141.61°C
Density and/or relative density 1.061
Relative vapour density 4.95 (Relative to Air)
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Stable in cold in absence of air; oxidizes in presence of air; volatile in steam

10.3 Possibility of hazardous reactions

It is combustible and at elevated temperatures evolves a vapor which is flammable ... Fire hazard: moderate, when exposed to heat or flame.Dust explosion possible if in powder or granular form, mixed with air.BETA-NAPHTHYLAMINE is a weak base. It is incompatible with strong oxidizing agents and strong acids. It is also incompatible with nitrous acid. It reduces warm ammoniacal silver nitrate.

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

STABILITY: This chemical darkens in air to a reddish-purple color (oxidizes).REACTIVITY: This chemical is a weak base. It is incompatible with strong oxidizing agents and strong acids. It is also incompatible with nitrous acid. It reduces warm ammoniacal silver nitrate.

10.6 Hazardous decomposition products

When exposed to heat or flame, it emits toxic fumes.

11.Toxicological information

Acute toxicity

  • Oral: no data available
  • 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

Sufficient evidence of carcinogenicity in humans. Sufficient evidence of carcinogenicity in animals. OVERALL EVALUATION: Group 1: The agent is a human carcinogen. /From table/

Reproductive toxicity

no data available

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

12.Ecological information

12.1 Toxicity

  • Toxicity to fish: no data available
  • Toxicity to daphnia and other aquatic invertebrates: no data available
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no data available

12.2 Persistence and degradability

AEROBIC: In a test for primary biodegradation, 2-naphthylamine was not degraded in chernozem soil after 90 days at an initial concentration of 500 mg/kg(1). The maximum mineralization rate for 2-naphthylamine (conc. 50 ug/g) in a soil/water suspension over 220 days was 0.12 ug/g-day during a short initial phase and 0.027 ug/g-day during a longer second phase(2). Addition of fresh amounts of 2-naphthylamine (conc. 50 ug/g) at 220 days restored the mineralization to the initial phase rate value. The recalcitrance of aminonaphthalenes in soil has been attributed to their ability to form complexes with soil matter which, to a large extent, renders them biologically unavailable(3).

12.3 Bioaccumulative potential

An estimated BCF of 11 was calculated for 2-naphthylamine(SRC), using a log Kow of 2.28(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).

12.4 Mobility in soil

The measured Koc for 2-naphthylamine is 1,000(1). According to a classification scheme(2), this Koc value suggests that 2-naphthylamine is expected to have low mobility in soil. Results of a batch equilibrium study with various soils indicated that 1-naphthylamine, which is structurally analogous to 2-naphthylamine, binds to soil in two phases with an initial rapid and reversible equilibrium established between the amine and the inorganic and organic components of soil followed subsequently by a strong association with the humic fraction of soil via covalent binding(3,4). Aminonaphthalenes are known to form complexes with soil matter(5). The pKa of 2-naphthylamine is 4.16(6), indicating that this compound will partially exist in cation form in the environment.

12.5 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods

Product

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.

Contaminated packaging

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.

14.Transport information

14.1 UN Number

ADR/RID: UN1650 IMDG: UN1650 IATA: UN1650

14.2 UN Proper Shipping Name

ADR/RID: beta-NAPHTHYLAMINE, SOLID
IMDG: beta-NAPHTHYLAMINE, SOLID
IATA: beta-NAPHTHYLAMINE, SOLID

14.3 Transport hazard class(es)

ADR/RID: 6.1 IMDG: 6.1 IATA: 6.1

14.4 Packing group, if applicable

ADR/RID: II IMDG: II IATA: II

14.5 Environmental hazards

ADR/RID: yes IMDG: yes IATA: yes

14.6 Special precautions for user

no data available

14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

no data available

15.Regulatory information

15.1 Safety, health and environmental regulations specific for the product in question

Chemical name Common names and synonyms CAS number EC number
2-naphthylamine 2-naphthylamine 91-59-8 none
European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
EC Inventory Listed.
United States Toxic Substances Control Act (TSCA) Inventory Not Listed.
China Catalog of Hazardous chemicals 2015 Listed.
New Zealand Inventory of Chemicals (NZIoC) Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
Vietnam National Chemical Inventory Not Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.

16.Other information

Information on revision

Creation Date Aug 17, 2017
Revision Date Aug 17, 2017

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/

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.

MSDS

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NMR Spectrum 1H NMR : Predict

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91-59-8 NMR spectrum
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GC Analysis

Total 10 Documents >>
Column type Active phase Temperature (°C) Retention Index (I) Temperature Control Method
Packed SE-30 180. 1535. isothermal
Capillary DB-1 - 1484.8 temperature ramp
Capillary OV-1 - 1510.2 temperature ramp
Capillary DB-5 - 1562. temperature ramp
Capillary Ultra-1 - 1486. temperature ramp
Exposure Route Type of Test Species Observed Dose/Duration Toxic Effects
Oral LD50 - Lethal dose, 50 percent kill Rodent - rat 727 mg/kg 1.Details of toxic effects not reported other than lethal dose value
Oral TDLo - Lowest published toxic dose Rodent - rat 17100 mg/kg/57W-I 1.Tumorigenic-Carcinogenic by RTECS criteria
2.Kidney, Ureter, Bladder-tumors
Intraperitoneal TDLo - Lowest published toxic dose Rodent - rat 1300 mg/kg/13W-I 1.Tumorigenic-equivocal tumorigenic agent by RTECS criteria
2.Blood-lymphoma, including Hodgkin's disease
3.Tumorigenic-tumors at site of application
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