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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Sodium sulfide(1313-82-2)

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
Sodium sulfide
Synonyms
Disodium sulfide
Sodium sulfuret
CAS
1313-82-2
Formula
Na2S
Molecular Weight
78.03
EINECS
215-211-5
RTECS
WE1905000
RTECS Class
Other
Merck
12,8830
Beilstein/Gmelin
9346 (G)
EC Index Number
016-009-00-8
EC Class
Contact with acids liberates toxic gas; Corrosive; Dangerous for the Environment

Physical and Chemical Properties

Appearance
Yellow-pink or white deliquescent crystals, flakes or lumps. Alkaline.
Solubility in water
150 g/L
Boiling Point
174
Density
1.856 g/cm3 (14 C)
Heat Of Vaporization
Usage
In prodn of heavy water for nuclear reactors.

First Aid Measures

Ingestion
Give water; induce vomiting; call a doctor.
Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
Skin
Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush with running water for at least 20 minutes.
Eyes
In case of contact with substance, immediately flush with running water for at least 20 minutes.

Handling and Storage

Storage
Protect against physical damage. Separate from acids, oxidizing materials, and possible sources of ignition.
Handling
Containers of this material may be hazardous when emptied. Since emptied containers retain product residues (vapor, liquid, and/or solid), all hazard precautions given in the data sheet must be observed.

Hazards Identification

Inhalation
Stridor, dyspnea, upper airway injury, and pulmonary edema, especially following inhalation of vaporized caustics, may occur.
Skin
Severe skin irritation and/or burns may occur.
Eyes
See Skin.
Ingestion
Burns of the esophagus and less commonly the stomach may occur after caustic ingestion; the absence of oral mucosal injury does not reliably exclude esophageal burns. Patients with stridor, drooling or vomiting are more likely to have esophageal burns.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. May polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
UN (DOT)
1385

Exposure Controls/Personal Protection

Personal Protection
Goggles or face shield. Wear special protective clothing and positive pressure self-contained breathing apparatus.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Exposure Effects
Patients may acutely present with low heart rate, rapid heart rate, hyperventilation, respiratory depression even to the point of apnea, and/or hypo-/elevated blood pressure. Asphyxial seizures, coma, and death associated with rapid respiratory paralysis may be noted following exposure to high concentrations. Headache, sweating, vertigo, anosmia, irritability, staggering gait, disorientation, somnolence, weakness, confusion, and delirium may be noted following exposure to non-fatal levels. Spontaneous abortions have occurred after exposure to life-threatening concentrations.

Fire Fighting Measures

Fire Fighting
Flood with water.
Fire Potential
May burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks
Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard.

Stability and Reactivity

Incompatibilities
Liberates toxic hydrogen sulfide on contact with acids. Reacts violently with carbon; diazonium salts; n,n-dichloromethylamine; 0-nitroaniline diazonium salt; water. Reacts with acid more vigorously, producing corrosive solutions and hydrogen sulfide.
Stability
Unstable - can explode with shock or heat reactive at high temperature or pressure.
Decomposition
When heated to decomposition, emits toxic fumes of sulfur oxides and disodium oxide.
Combustion Products
Irritating sulfur dioxide is produced in fire.

Transport Information

UN Number
1385
Hazard Class
4.2
Packing Group
II
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