Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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2-Hydroxy-1,4-naphoquinone(83-72-7)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
2-Hydroxy-1,4-naphoquinone
Synonyms
1,4-Dihydro-1,4-dioxo-2-hydroxynaphthalene
2-Hydroxy-1,4-naphthalenedione
2-Hydroxynaphthoquinone
Flower of Paradise
Lawsone
Natural Orange 6
Tetrabromozirconium
Zirconium bromide
Zirconium tetrabromide
CAS
13777-25-8
CAS
83-72-7
Formula
Br4Zr
Formula
C10H6O3
Molecular Weight
410.84
Molecular Weight
174.16
EINECS
201-496-3
EINECS
237-417-4
RTECS
QL8200000
RTECS Class
Drug; Mutagen
Merck
13,5410
Beilstein/Gmelin
1565260
Beilstein/Gmelin
2598 (G)
Beilstein Reference
4-08-00-02360

Physical and Chemical Properties

Appearance
White cubic crystals
Appearance
Yellow prisms or yellow powder.
Melting Point
450
Melting Point
192
Density
1.46 g/cm3 (25 C)
pKa/pKb
4.03 (pKa)
Partition Coefficient
1.78
Usage
Dye.

First Aid Measures

Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Ingestion
See Inhalation.
Inhalation
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Skin
Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
Eyes
See Inhalation.
Eyes
Assure adequate flushing of the eyes by separating the eyelids with fingers.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage
Keep tightly closed. Store in a cool dry place.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification

Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.
Inhalation
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
Skin
May cause skin irritation. The toxicological properties of this material have not been fully investigated.
Eyes
May cause eye irritation. The toxicological properties of this material have not been fully investigated.
Hazards
Emits toxic fumes under fire conditions.
EC Risk Phrase
20/21/22 34
EC Risk Phrase
R 36/37/38
EC Safety Phrase
S 26 36
EC Safety Phrase
22 26 27 36/37/39 45
UN (DOT)
3260

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Personal Protection
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective clothing. Faceshield (8-inch minimum).
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Exposure Effects
Corrosive. Causes burns. Harmful by inhalation, in contact with skin and if swallowed.

Fire Fighting Measures

Flash Point
192
Fire Fighting
Extinguish using Dry chemical powder. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire Potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Provide ventilation.
Small spills/leaks
Cover with dry lime or soda ash, pick up, keep in a closed container, and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Incompatibilities
Acids.
Incompatibilities
Oxidizing agents.
Stability
Stable under normal temperatures and pressures.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Decomposition
Hydrogen bromide gas.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
3260
Hazard Class
8
Packing Group
II
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