- 2-Thiomalic acid
- Mercaptosuccinic acid
- 2-Mercaptosuccinic acid
- Mercaptobutanedioic acid
White solid. Sulfidic odor.
Used as a brightening agent of metal plating.
Registry Numbers and Inventories.
R 22 36/37/38
S 26 36/37/39
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
150 - 152
Boiling point, °C
Solubility in water
Partition coefficient, pKow
Hazards and Protection.
Store in a cool, dry place. Keep container closed when not in use.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions. **** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal.
Stable under normal temperatures and pressures.
Strong oxidizing agents.
Carbon monoxide, oxides of sulfur, irritating and toxic fumes and gases, carbon dioxide.
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. Use agent most appropriate to extinguish fire.
The toxicological properties of this substance have not been fully investigated.
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
May cause respiratory tract irritation.
May cause skin irritation. May cause allergic contact dermatitis.
May cause eye irritation.
Do NOT induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of water, and seek medical advice.
Remove from exposure to fresh air immediately.
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.
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