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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4-Dithiane-2,5-diol(40018-26-6)

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
4-Dithiane-2,5-diol
Synonyms
2,5-Dihydroxy-1,4-dithiane
Mercaptoacetaldehyde dimer
p-Dithiane-2,5-diol
CAS
40018-26-6
Formula
C4H8O2S2
Molecular Weight
152.24
EINECS
254-751-6
Beilstein/Gmelin
104402
Beilstein Reference
4-01-00-03966
EC Class
harmful

Physical and Chemical Properties

Appearance
White to light yellow crystalline powder. With a stench.
Solubility in water
Soluble
Melting Point
110
Boiling Point
285
pKa/pKb
12.04 (pKa)
Partition Coefficient
.99

First Aid Measures

Ingestion
Induce vomiting. Get medical aid. Wash mouth out with water.
Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage
Store in a tightly closed container. Store in a dry area. Refrigerator (approx 4 C).
Handling
Use with adequate ventilation. Avoid contact with skin and eyes. Do not breathe dust, vapor, mist, or gas. Take precautionary measures against static discharges.

Hazards Identification

Ingestion
Harmful if swallowed. May cause irritation of the digestive tract.
Inhalation
May cause respiratory tract irritation. May be harmful if inhaled.
Skin
May cause skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. May be harmful if absorbed through the skin.
Eyes
May cause eye irritation and possible damage.
EC Risk Phrase
R 22 41 43
EC Safety Phrase
S 26 36/37/39
UN (DOT)
3335

Exposure Controls/Personal Protection

Personal Protection
Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Fire Fighting Measures

Autoignition
310
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Accidental Release Measures

Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Reduce airborne dust and prevent scattering by moistening with water. Avoid generating dusty conditions. Remove all sources of ignition.

Stability and Reactivity

Stability
No data.
Incompatibilities
Strong oxidizing agents, acids, bases.
Decomposition
Carbon monoxide, oxides of sulfur, carbon dioxide.

Transport Information

UN Number
3335
HS Code
2934 99 90
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