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Safety Data Sheet EN

Sodium hydrogen sulfide

CAS 16721-80-5
EC 240-778-0

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01

Identification

Product identifiers, regulatory numbers, and supplier information

Product Information

Product Name
Sodium hydrogen sulfide
Product Code
87389

Regulatory Identifiers

CAS Number
16721-80-5 Check regulations →
EC Number
240-778-0 Check regulations →

Identified Uses

SU24 Scientific research and development

Manufacturers & Suppliers

Alfa Aesar, Thermo Fisher Scientific Chemicals, Inc. logo

Alfa Aesar, Thermo Fisher Scientific Chemicals, Inc.

manufacturer

30 Bond Street, Ward Hill, MA 01835-8099

800-343-0660

http://www.alfa.com

Emergency Contacts

Emergency Contact

(800) 343-0660

Monday-Friday, 8am-7pm EST

Carechem 24

(866) 928-0789

02

Hazard Identification

GHS classification, signal word, pictograms, and hazard statements

Classified danger

Hazard Classifications

Flam. Sol. Cat. 1 H228
Self-heat. Cat. 1 H251
Skin Corr. Cat. 1B H314
Eye Dam. Cat. 1 H318
Acute Tox. Cat. 4 H302
Acute Tox. Cat. 4 H312
Acute Tox. Cat. 4 H332

GHS Pictograms

GHS02 - Flammable

GHS02

GHS05 - Corrosive

GHS05

GHS07 - Health hazard

GHS07

Hazard Statements

H228 Flammable solid.
H251 Self-heating: may catch fire.
H302 + H312 + H332 Harmful if swallowed, in contact with skin or if inhaled.
H314 Causes severe skin burns and eye damage.

Precautionary Statements

P210 Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P303 + P361 + P353 If on skin (or hair): 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.
P405 Store locked up.
P501 Dispose of contents/container in accordance with local/regional/national/international regulations.

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03

Composition / Information on Ingredients

Chemical components, concentration ranges, and hazardous substance identification

Type substance

Chemical characterization: Substances

Chemical Name CAS Number Concentration Hazardous
Sodium hydrogen sulfide EC: 240-778-0 16721-80-5 --- No
04

First Aid Measures

Emergency procedures for chemical exposure incidents

Inhalation

Supply fresh air. If required, provide artificial respiration. Keep patient warm. Seek immediate medical advice.

Skin contact

Immediately wash with water and soap and rinse thoroughly. Seek immediate medical advice.

Eye contact

Rinse opened eye for several minutes under running water. Then consult a doctor.

Ingestion

Seek medical treatment.

Immediate Medical Attention

Seek immediate medical advice.

05

Firefighting Measures

Extinguishing media, specific hazards, and firefighter protection

Suitable media

sand, carbon dioxide or powdered extinguishing agent

Unsuitable media

Water

Specific hazards

If this product is involved in a fire, the following can be released:

Firefighter Protection

Wear self-contained respirator. Wear fully protective impervious suit.

06

Accidental Release Measures

Spill cleanup procedures, containment, and environmental protection

Environmental

Do not allow product to reach sewage system or any water course.

Cleanup methods

Use neutralizing agent.

Related Products

Similar products with comparable safety profiles

07

Handling and Storage

Safe handling precautions, storage conditions, and workplace requirements

Handling

Handle under dry protective gas. Keep container tightly sealed. Store in cool, dry place in tightly closed containers. Ensure good ventilation at the workplace.

Storage

Store in a cool location. Store under dry inert gas. This product is hygroscopic. This product is moisture sensitive. Keep container tightly sealed. Store in cool, dry conditions in well sealed containers. Protect from humidity and water.

Fire prevention

Protect against electrostatic charges.

08

Exposure Controls / PPE

Occupational exposure limits, engineering controls, and protective equipment

Engineering

Properly operating chemical fume hood designed for hazardous chemicals and having an average face velocity of at least 100 feet per minute.

Hands

Impervious gloves. Check protective gloves prior to each use for their proper condition. The selection of suitable gloves not only depends on the material, but also on quality. Quality will vary from manufacturer to manufacturer. Penetration time of glove material (in minutes) Not determined

Eyes

Tightly sealed goggles. Full face protection

Respiratory

Use suitable respirator when high concentrations are present.

Skin/Body

Protective work clothing.

09

Physical and Chemical Properties

Appearance, physical state, melting point, boiling point, and material characteristics

Flash Point
---
Odor Threshold
Not determined.
Form
Crystalline
Vapor Density
Not applicable.
Kinematic Viscosity
Not applicable.
Flammability
Highly flammable.
Relative Evaporation Rate
---
Upper Explosive Limit
Not determined
Boiling Point
Not determined
Colour
Off-white
Vapor Pressure
Not applicable.
Molecular Weight
---
Solubility In Water
Soluble
Evaporation Rate
Not applicable.
Solubility
---
Explosive Limits
---
Odor
Like rotten eggs
Cloud Point
---
Solubility In Fat
---
Decomposition Temperature
Not determined
Density
1.79 g/cm³ (14.938 lbs/gal)
Physical State Data
solid
Lower Explosive Limit
Not determined
Solidification Point
---
Ph
Not applicable.
Appearance
Crystalline
Melting Point
350 °C (662 °F)
Bulk Density
---
Partition Coefficient
Not determined.
Softening Point
---
Physical State
Crystalline
State Under Standard Conditions
---
Properties Status
---
Relative Density
Not determined.
Crystallisation Point
---
Dynamic Viscosity
Not applicable.
Freezing Point
---
Voc Content
---
Colour Intensity
---
Metal Corrosion
---
Auto Ignition Temperature
Not determined
10

Stability and Reactivity

Chemical stability, hazardous reactions, and incompatible materials

Stability

Stable under recommended storage conditions.

Reactivity

Contact with acids liberates toxic gas.

Hazardous reactions

Contact with acids liberates toxic gas.

Avoid

No further relevant information available.

Incompatible

Water/moisture, Bases, Acids

Decomposition

Decomposition will not occur if used and stored according to specifications.

12

Ecological Information

Environmental toxicity, biodegradation, and bioaccumulation data

The data for this section has not been processed yet.

13

Disposal Considerations

Waste treatment methods, disposal recommendations, and waste codes

Treatment

Consult state, local or national regulations to ensure proper disposal.

Disposal

Consult state, local or national regulations to ensure proper disposal.

14

Transport Information

UN numbers, shipping names, transport classes, and regulatory requirements

UN Number
UN2318
Shipping Name
SODIUM HYDROSULPHIDE
Transport Class
4.2
Packing Group
II
ADR

Warning: Substances liable to spontaneous combustion

IMDG

Warning: Substances liable to spontaneous combustion

IATA

Warning: Substances liable to spontaneous combustion

15

Regulatory Information

Chemical regulations, safety assessments, and compliance status

Chemical Safety Assessment Not performed
?

Frequently Asked Questions

Common questions about safety, handling, and properties

What is the hazard signal word for Sodium hydrogen sulfide?

The signal word is danger.

What is the physical form of Sodium hydrogen sulfide?

Sodium hydrogen sulfide is a crystalline appearing as crystalline with off-white color. It has like rotten eggs odor.

What is Sodium hydrogen sulfide used for?

SU24 Scientific research and development

What are the hazard statements for Sodium hydrogen sulfide?

This substance has 4 hazard statements:

  • H228: Flammable solid.
  • H251: Self-heating: may catch fire.
  • H302 + H312 + H332: Harmful if swallowed, in contact with skin or if inhaled.
  • H314: Causes severe skin burns and eye damage.

What is the melting point of Sodium hydrogen sulfide?

The melting point is 350 °C (662 °F) and the boiling point is Not determined.