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1,4-naphthoquinone

CAS Number
130-15-4
EC Number
204-977-6
Chemical Formula
C10H6O2
Molecular Weight
158.15 g/mol

Description

1,4-Naphthoquinone (CAS 130-15-4 ), also known as α-naphthoquinone, is a quinone compound used industrially as a catalyst component and chemical intermediate. It functions primarily as a polymerization modifier and oxidation catalyst. In manufacturing processes requiring precise reaction control, it serves as a vital reagent. In rubber and polymer processing, it acts as a retarder or co-agent to regulate cure rates and crosslinking behavior in vulcanization systems. The printing and packaging industry uses it as a photosensitizer and intermediate in the production of diazo-based coatings and photopolymer plates. Textile and leather processors apply it in dye synthesis for specialty colorants. It is also utilized as an oxidative intermediate for producing colorants with targeted fastness properties. In paper manufacturing, it functions as a catalyst precursor in pulping chemistry where controlled oxidation is required. This chemical improves fiber processing efficiency during the pulping stage. 1,4-Naphthoquinone is supplied as a yellow crystalline powder or flake solid, making it easy to handle in various industrial environments. Technical grade is the standard commercial form, with purity levels typically ranging from 97% to 99%+. It is available in drum and bag packaging suited to industrial-scale procurement volumes for global distribution. Contact us for supply of 1,4-naphthoquinone Request Quote

Other Names (Synonyms)

α-naphthoquinone | p-naphthoquinone | alpha-naphthoquinone | 4a,8a-dihydronaphthalene-1,4-dione | 1,4-dihydro-1,4-diketonaphthalene | naphthalene-1,4-dione | 1,4-Naphthalenedione | 1,4-Naphthylquinone

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point126 °C
Boiling Point298 °C
Density1.422 g/cm³
Flash Point141 °C
Appearance1,4-Naphthoquinone is a yellow to greenishyellow crystalline solid. Pungent odor like benzoquinone.
ColorKhaki
FormPowder
Water Solubilityinsoluble
Vapor Pressure<1 hPa (50 °C)
Refractive Index1.5300 (estimate)
pH6.1 (10g/l, H2O, 20℃)
Log P1.71-1.77 at 25℃

Safety & Handling

Danger
GHS05· CorrosiveGHS06· ToxicGHS07· IrritantGHS08· Health HazardGHS09· Environment

Hazard Statements

H301Toxic if swallowed
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H317May cause an allergic skin reaction
H318Causes serious eye damage
H319Causes serious eye irritation
H330Fatal if inhaled
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335May cause respiratory irritation
H371May cause damage to organs
H373May causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary Statements

P233Keep container tightly closed.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P284In case of inadequate ventilation wear respiratory protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P319Get medical advice/attention if you feel unwell.
P320Specific treatment is urgent (see … on this label).
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P391Collect spillage.
P403Store in a well-ventilated place.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P316Get emergency medical help immediately.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P316Get emergency medical help immediately.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29146910
UN Number2811
ADR Class6.1
Packing GroupI
Storage Class6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials
WGK (Germany)3