Product: 2-Diazo-1-naphthol-5-sulfonic acid sodium salt rev-6
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Material Safety Data Sheet
Section 1 - Product and Company Identification
Chemical Name

･2-Diazo-1-naphthol-5-sulfonic acid sodium aslt
･1,2-Naphthoquinone-2-diazido-5-sulfonic Acid
Sodium Salt

Chemical Formula
Company Identification

C10H5N2NaO4S・H2O
Showa Kako Corporation

Telephone Number
24-hour Emergency Telephone Number
Fax Number

18-23 Yoshino-cho, Suita City Osaka pref., 564-0054
JAPAN+81-6-6384-1501+81-6-6384-1501+81-6-6384-2287

Section 2 - Hazards IdentificationInhalation
SkinEyes
Ingestion

Dust from the product, if present, may cause respiratory information following an
excessive inhalation exposure.
May produce skin Irritation.
May cause eye Irritation.
Not expected to present a significant ingestion hazards under anticipated conditionof normal use.

GHS Classification
Physical Hazards
Self-reactive substances and mixtures
Health Hazards

Type D

Skin corrosion / irritation
Serious eye damage / eye irritation
Environmental Hazards
GHS Symbol

Category 2
Category 2A
Not classified

Section 3 - Composition / Information on Ingredients
Chemical Name･2-Diazo-1-naphthol-5-sulfonic acid sodium aslt
･1,2-Naphthoquinone-2-diazido-5-sulfonic Acid Sodium Salt

CAS #UN #Percent

2657-00-3
Not applicable95%

Section 4 - First Aid Measures
Eyes

Immediately flush eyes with copious amounts of water for at least 15
minutes,occasionally lifting the upper and lower eyelids. Consult withophthalmologist.

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Skin

Ingestion
Inhalation

Flush skin with plenty of water for at least 15 minutes while removing
contaminated clothing and shoes. Wash clothing before reuse. Consult with aphysician if symptoms occur.
Immediately wash mouth with plenty of water and give 1 - 2 cupfuls of milk orwater if victim is conscious and alert. Consult with a physician.
Remove to fresh air, wash out nasal aperture and mouth with plenty of water. If
breathing is difficult, give artificial respiration. If not breathing, give oxygen.
Consult with a physician.

Section 5 - Fire Fighting Measures
Flash Point
Autoignition
Explosion Limits

Lower
Upper

Extinguishing Media
Fire Fighting Instructions

No data foundNone
No data foundNo data foundWater, powder, carbon dioxide, foam
Avoid non-fire fighting equipped personnel to enter. Extinguishupwind from the fire wearing appropriate protective gear.

Section 6 - Accidental Release Measures
Spills/Leaks

Evacuate spill area. Provide adequate ventilation. Wear self-contained breathingapparatus, rubber boots and heavy rubber gloves. Sweep up, place in a bag andhold for waste disposal. Avoid raising dust. Do not contact with skin. Do notinhale. Wash spill site after material pickup is complete.

Section 7 - Handling and Storage
HandlingWear appropriate protective gear. Do not contact with eyes, skin and on clothing.
Do not inhale. Handle with care. Wash mouth and hand after handling the material.

Storage

Keep container tightly closed. Avoid such conditions as direct sunlight and highpiling. Store in low-humid, low-temperature area.

Section 8 - Exposure Controls / Personal Protection
Engineering Controls Facilities storing or utilizing the material should be equipped with an eye wash
facilities and a safety shower. Use adequate ventilation to keep airbone
concentrations low.
Exposure Limits
Not data foundPersonal Protective Equipment
Eyes
Skin
Clothing
Respirators

Safety goggles
Rubber gloves
Protective clothing and rubber boots
Anti-dust mask

Section 9 - Physical and Chemical Properties
Physical State

PowderProduct: 2-Diazo-1-naphthol-5-sulfonic acid sodium salt rev-6
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Appearance
Odor
Boiling point
Melting point
Density
Viscosity
pH
Flash Point
Autoignition
Explosibility
Vapor Pressure
Vapor Density
Solubility
Molecular Weight

Yellow - yellowish orange
Odorless
No data found
No data found
No data found
No data found
No data found
No data found
NoneNone
No data found
No data foundSoluble in water
290.23

Section 10 - Stability and Reactivity
Stability

Unstable to light and heat, decomposed and degradedby light and heat.

Conditions to avoid

Light and heat

Incompatibilites with Other Material
Hazardous Decomposition Products

Strong oxidizing agents
Toxic gases of carbon monoxide, nitrogen oxides, andsulfur oxide

Hazardous Polymerization

Will not occur

Section 11 - Toxicological Information
RTECS #
LD50/LC50
Carcinogenicity
Mutagenicity
Reproductive Effects
Teratogencity
Immunology
Irritation

No data found
No data found
No data found
No data found
No data found
No data found
No data foundMay be irritating to eyes, skin or membrane

Section 12 - Ecological Information
Ecotoxicity
Environmental Standard

No data found
No data foundSection 13 - Disposal Consideration
Disposal Method

Federal (national), state or local laws and regulations will determine theproper waste disposal method.

Regulations

Federal (national), state or local laws and regulations

Section 14 - Transport Information
Shipping Name

Self-reactive solid type D

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Hazard Class
UN #Packing Group

4.1: Flammable solid3226
Not available

Section 15 - Regulatory Information
United States
ECTSCA
EINECS
R Pharases
S Pharases

On the list
220-189-5
R11 Highly Flammable
S16 Keep away from sources of ignition - No smoking
S33 Take precautionary measures against static discharges
S26 In case of contact with eyes, rinse immediately with plentyof water and seek medical advice

CanadaJapanWHMISPRTR Law

S36 Wear suitable protective clothing
No data found
Not on the list

Section 16 - Other Information
MSDS Creation Date
November 20, 2000
Revised Date
March 31, 2014
Revised No.
Revised 6thMSDS No.
G1059

This information above is believed to be accurate and represents the best information currently available to us. However, we make no warrantyof merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use.
Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall Showa
Kako be liable for any claims, losses, or damage of any third party or for lost profits or any special, incidental, consequential or exemplary
damages, howsoever arising, even if Showa Kako has been advised of the possibility of such damages.