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Mercaptosuccinic acid(70-49-5)

Mercaptosuccinic acid(70-49-5)
Product IdentificationBack to Contents
【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 PropertiesBack to Contents
【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 MeasuresBack to Contents
【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 StorageBack to Contents
【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 IdentificationBack to Contents
【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 ProtectionBack to Contents
【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 MeasuresBack to Contents
【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 MeasuresBack to Contents
【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 ReactivityBack to Contents
【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 InformationBack to Contents
【HS Code】

2930 90 70
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