SoleChem

1,4-naphthoquinone

CAS
130-15-4
EC
204-977-6
Mol. 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.

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Physical Properties

Melting Point 126 °C
Boiling Point 298 °C
Density 1.422 g/cm³
Flash Point 141 °C
Appearance 1,4-Naphthoquinone is a yellow to greenishyellow crystalline solid. Pungent odor like benzoquinone.
Color Khaki
Form Powder
Water Solubility insoluble
Vapor Pressure <1 hPa (50 °C)
Refractive Index 1.5300 (estimate)
pH 6.1 (10g/l, H2O, 20℃)
Log P 1.71-1.77 at 25℃

Safety & Handling (Learn More)

Danger GHS05 GHS06 GHS07 GHS08 GHS09
Hazard Statements
H301 Toxic if swallowed
H314 Causes severe skin burns and eye damage
H315 Causes skin irritation
H317 May cause an allergic skin reaction
H318 Causes serious eye damage
H319 Causes serious eye irritation
H330 Fatal if inhaled
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335 May cause respiratory irritation
H371 May cause damage to organs
H373 May causes damage to organs through prolonged or repeated exposure
H400 Very toxic to aquatic life
H410 Very toxic to aquatic life with long lasting effects
Precautionary Statements
P233 Keep container tightly closed.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P272 Contaminated work clothing should not be allowed out of the workplace.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P284 In case of inadequate ventilation wear respiratory protection.
P316 Get emergency medical help immediately.
P317 Get emergency medical help.
P319 Get medical advice/attention if you feel unwell.
P320 Specific treatment is urgent (see … on this label).
P321 Specific treatment (see … on this label).
P330 Rinse mouth.
P363 Wash contaminated clothing before reuse.
P391 Collect spillage.
P403 Store in a well-ventilated place.
P405 Store locked up.
P501 Dispose of contents/container in accordance with local regulations.
P264+P265 Wash … thoroughly after handling.
P301+P316 Get emergency medical help immediately.
P302+P352 IF ON SKIN: Wash with plenty of water.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P308+P316 Get emergency medical help immediately.
P332+P317 Get emergency medical help.
P333+P317 Get emergency medical help.
P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P342+P316 Get emergency medical help immediately.
P362+P364 Take off contaminated clothing and wash it before reuse.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P301+P330+P331 Rinse mouth. Do NOT induce vomiting.
P302+P361+P354 IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code 29146910
UN Number 2811
ADR Class 6.1
Packing Group I
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials
WGK (Germany) 3

Documentation

Other Names

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

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