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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Mercaptosuccinic acid(70-49-5)

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
Mercaptosuccinic acid
Synonyms
1-Methylpyridine-3-carboxylic acid amide chloride
1-Methylpyridine-5-carboxamide chloride
2-Mercaptosuccinic acid
2-Thiomalic acid
3-Carbamoyl-1-methylpyridinium chloride
3-Carbamyl-1-methylpyridinium chloride
Mercaptobutanedioic acid
Mercaptosuccinate
Mercaptosuccinic acid
Pyridinium, 3-(aminocarbonyl)-1-methyl-, chloride (1:1)
Trigonellamide chloride
CAS
1005-24-9
CAS
70-49-5
Formula
C4H6O4S
Formula
C7H9ClN2O
Molecular Weight
150.15
Molecular Weight
172.61
EINECS
200-736-4
RTECS
UU1925000
RTECS
WM8225000
RTECS Class
Other
Merck
12,9479
Merck
12,9821
Beilstein/Gmelin
1099858
Beilstein Reference
4-03-00-01130
EC Class
harmful, irritant

Physical and Chemical Properties

Appearance
White solid. Sulfidic odor.
Solubility in water
Very soluble
Melting Point
150 - 152
Boiling Point
322
pKa/pKb
3.49 (pKa)
Partition Coefficient
-.46
Usage
Used as a brightening agent of metal plating.

First Aid Measures

Ingestion
Do NOT induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of water, and seek medical advice.
Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
Inhalation
Material may be irritating to mucous membranes and upper respiratory tract. May be harmful if inhaled.
Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
Inhalation
Remove from exposure to fresh air immediately.
Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Skin
In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.
Skin
May cause skin irritation. May be harmful if absorbed through the skin.
Eyes
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.
Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.
Eyes
May cause irritation.

Handling and Storage

Storage
Keep container tightly closed.
Storage
Store in a cool, dry place. Keep container closed when not in use.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Ingestion
May be harmful if swallowed.
Inhalation
May cause respiratory tract irritation.
Skin
May cause skin irritation. May cause allergic contact dermatitis.
Eyes
May cause eye irritation.
Ingestion
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
Hazards
Emits toxic fumes under fire conditions.
EC Risk Phrase
R 22 36/37/38
EC Safety Phrase
S 26 36/37/39

Exposure Controls/Personal Protection

Personal Protection
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.
Personal Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
Respirators
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Respiratory protection is not required. Where protection from nuisance levels of dusts are desired, use type N95 (US) or type P1 (EN 143) dust masks.
Respirators
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 ****
Exposure Effects
The toxicological properties of this substance have not been fully investigated.
Poison Class
4

Fire Fighting Measures

Fire Fighting
Extinguish with water spray, carbon dioxide, dry chemical powder or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire Fighting
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.

Accidental Release Measures

Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal.
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Disposal Code
6
Stability
Stable at normal temperatures and pressures.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide, Nitrogen oxides, Hydrogen chloride gas.
Decomposition
Carbon monoxide, oxides of sulfur, irritating and toxic fumes and gases, carbon dioxide.

Transport Information

HS Code
2930 90 70
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