Chemical Safety Data Sheet MSDS / SDS

Mercaptoacetic acid

Revision Date:2023-12-02Revision Number:1

SECTION 1: Identification of the substance/mixture and of the company/undertaking

Product identifier

  • Product name: Mercaptoacetic acid
  • CBnumber: CB6477604
  • CAS: 68-11-1
  • EINECS Number: 200-677-4
  • Synonyms: thioglycolic acid,Mercaptoacetic Acid

Relevant identified uses of the substance or mixture and uses advised against

  • Relevant identified uses: For R&D use only. Not for medicinal, household or other use.
  • Uses advised against: none

Company Identification

  • Company: Chemicalbook
  • Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
  • Telephone: 400-158-6606

SECTION 2: Hazards identification

GHS Label elements, including precautionary statements

  • Symbol(GHS)
  • Signal wordDanger
Precautionary statements
P501 Dispose of contents/container to..…
P406 Store in corrosive resistant/… container with a resistant inner liner.
P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P390 Absorb spillage to prevent material damage.
P307+P311 IF exposed: call a POISON CENTER or doctor/physician.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P284 Wear respiratory protection.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P273 Avoid release to the environment.
P272 Contaminated work clothing should not be allowed out of the workplace.
P271 Use only outdoors or in a well-ventilated area.
P270 Do not eat, drink or smoke when using this product.
P264 Wash skin thouroughly after handling.
P264 Wash hands thoroughly after handling.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P234 Keep only in original container.
Hazard statements
H402 Harmful to aquatic life
H370 Causes damage to organs
H331 Toxic if inhaled
H330 Fatal if inhaled
H317 May cause an allergic skin reaction
H314 Causes severe skin burns and eye damage
H312 Harmful in contact with skin
H311 Toxic in contact with skin
H301 Toxic if swalloed
H290 May be corrosive to metals

SECTION 3: Composition/information on ingredients

Substance

  • Product name: Mercaptoacetic acid
  • Synonyms: thioglycolic acid,Mercaptoacetic Acid
  • CAS: 68-11-1
  • EC number: 200-677-4
  • MF: C2H4O2S
  • MW: 92.12

SECTION 4: First aid measures

Description of first aid measures

General advice
First aiders need to protect themselves. Show this material safety data sheet to the doctor in attendance.
If inhaled
After inhalation: fresh air. Immediately call in physician. If breathing stops: immediately apply artificial respiration, if necessary also oxygen.
In case of skin contact
In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with water/ shower. Call a physician immediately.
In case of eye contact
After eye contact: rinse out with plenty of water. Immediately call in ophthalmologist. Remove contact lenses.
If swallowed
If swallowed: give water to drink (two glasses at most). Seek medical advice immediately. In exceptional cases only, if medical care is not available within one hour, induce vomiting (only in persons who are wide awake and fully conscious), administer activated charcoal (20 - 40 g in a 10% slurry) and consult a doctor as quickly as possible. Do not attempt to neutralise.

Most important symptoms and effects, both acute and delayed

The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in section 11

Indication of any immediate medical attention and special treatment needed

No data available

SECTION 5: Firefighting measures

Extinguishing media

Suitable extinguishing media
Water Foam Carbon dioxide (CO2) Dry powder
Unsuitable extinguishing media
For this substance/mixture no limitations of extinguishing agents are given.

Special hazards arising from the substance or mixture

Carbon oxides Sulfur oxides Combustible.

Vapors are heavier than air and may spread along floors. Forms explosive mixtures with air on intense heating.

Development of hazardous combustion gases or vapours possible in the event of fire.

Advice for firefighters

Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.

Further information

Suppress (knock down) gases/vapors/mists with a water spray jet. Prevent fire extinguishing water from contaminating surface water or the ground water system.

NFPA 704

3
1
0
HEALTH 3 Short exposure could cause serious temporary or moderate residual injury (e.g. liquid hydrogen, sulfuric acid, calcium hypochlorite, hexafluorosilicic acid)
FIRE 1 Materials that require considerable preheating, under all ambient temperature conditions, before ignition and combustion can occur. Includes some finely divided suspended solids that do not require heating before ignition can occur. Flash point at or above 93.3 °C (200 °F). (e.g. mineral oil, ammonia)
REACT 0 Normally stable, even under fire exposure conditions, and is not reactive with water (e.g. helium,N2)
SPEC. HAZ.

SECTION 6: Accidental release measures

Personal precautions, protective equipment and emergency procedures

Advice for non-emergency personnel: Do not breathe vapors, aerosols. Avoid substance contact. Ensure adequate ventilation. Evacuate the danger area, observe emergency procedures, consult an expert.

For personal protection see section 8.

Environmental precautions

Do not let product enter drains.

Methods and materials for containment and cleaning up

Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions (see sections 7 and 10). Take up carefully with liquid-absorbent material (e.g.

Chemizorb?). Dispose of properly. Clean up affected area.

Reference to other sections

For disposal see section 13.

SECTION 7: Handling and storage

Precautions for safe handling

Advice on safe handling

Work under hood. Do not inhale substance/mixture. Avoid generation of vapours/aerosols.

Hygiene measures

Immediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance.

For precautions see section 2.2.

Conditions for safe storage, including any incompatibilities

Storage conditions

Tightly closed. Keep in a well-ventilated place. Keep locked up or in an area accessible only to qualified or authorized persons.

Storage stability

Recommended storage temperature 2 - 8 °C

Specific end use(s)

Apart from the uses mentioned in section 1.2 no other specific uses are stipulated

SECTION 8: Exposure controls/personal protection

control parameter

Hazard composition and occupational exposure limits
Does not contain substances with occupational exposure limits.

Exposure controls

Personal protective equipment
Eye/face protection

Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Tightly fitting safety goggles

Skin protection

This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN374 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de).

Full contact

Material: Chloroprene

Minimum layer thickness: 0,65 mm Break through time: 480 min Material tested:KCL 720 Camapren?

This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN374 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de).

Splash contact Material: Latex gloves

Minimum layer thickness: 0,6 mm Break through time: 120 min

Material tested:Lapren? (KCL 706 / Aldrich Z677558, Size M)

Body Protection

Acid-resistant protective clothing

Respiratory protection

Recommended Filter type: Respirator.

The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer.

These measures have to be properly documented.

Control of environmental exposure

Do not let product enter drains.

Exposure limits
TLV-TWA 1 ppm (~3.8 mg/m3) (ACGIH).

SECTION 9: Physical and chemical properties

Information on basic physicochemical properties

  • Appearancecolorless liquid
  • OdourStench.
  • Odour ThresholdNo data available
  • pH1,5 at 10 g/l at 20 °C
  • Melting point/freezing pointMelting point/range: -16 °C
  • Initial boiling point and boiling range 96 °C at 7 hPa
  • Flash point130 °C - closed cup
  • Evaporation rateNo data available
  • Flammability (solid, gas)No data available
  • Upper/lower flammability or explosive limits Lower explosion limit: 5,9 %(V)
  • Vapour pressure 0,5 hPa at 25 °C
  • Vapour density 3,18 - (Air = 1.0)
  • Relative densityNo data available
  • Water solubility1.000 g/l at 20 °C - OECD Test Guideline 105- completely soluble
  • Partition coefficient: n-octanol/waterlog Pow: -2,99 at 22 °C - Bioaccumulation is not expected.
  • Autoignition temperature315 °C at 1.020 hPa - ASTM E-659
  • Decomposition temperature No data available
  • ViscosityViscosity, kinematic: 4,69 mm2/s at 20 °C - OECD Test Guideline 114 Viscosity, dynamic: 6,55 mPa.s at 20 °C
  • Explosive propertiesNo data available
  • Oxidizing propertiesNo data available

Other safety information

Relative vapor density

3,18 - (Air = 1.0)

SECTION 10: Stability and reactivity

Reactivity

Forms explosive mixtures with air on intense heating.

A range from approx. 15 Kelvin below the flash point is to be rated as critical.

Chemical stability

The product is chemically stable under standard ambient conditions (room temperature) .

Possibility of hazardous reactions

Violent reactions possible with:

Organic Substances Strong oxidizing agents strong alkalis


Conditions to avoid

Strong heating.

Incompatible materials

various metals

Hazardous decomposition products

In the event of fire: see section 5

SECTION 11: Toxicological information

Information on toxicological effects

Acute toxicity
LD50 Oral - Rat - male and female - > 50 - 200 mg/kg (OECD Test Guideline 423)
Acute toxicity estimate Inhalation - 4 h - 3,1 mg/l (Expert judgment)
Acute toxicity estimate Inhalation - Expert judgment - 4 h - 3,1 mg/l (Expert judgment)
Remarks: Classified according to Regulation (EU) 1272/2008, Annex VI (Table 3.1/3.2)
LD50 Dermal - Rabbit - male and female - 848 mg/kg (OECD Test Guideline 402)
Skin corrosion/irritation
Skin - reconstructed human epidermis (RhE) Result: Causes burns. - 3 - 60 min Remarks: (ECHA)
Serious eye damage/eye irritation
Eyes - Rabbit
Result: Causes serious eye damage. (Regulation (EC) No. 440/2008, Annex, B.5) Causes serious eye damage.
Respiratory or skin sensitization
(OECD Test Guideline 429)
Germ cell mutagenicity
Test Type: Ames test
Test system: S. typhimurium
Metabolic activation: with and without metabolic activation Method: OECD Test Guideline 471
Result: negative
Test Type: In vitro mammalian cell gene mutation test Test system: mouse lymphoma cells
Metabolic activation: with and without metabolic activation Method: Regulation (EC) No. 440/2008, Annex, B.17
Result: negative
Test Type: Chromosome aberration test in vitro Test system: Human lymphocytes
Metabolic activation: with and without metabolic activation Method: OECD Test Guideline 473
Result: negative
Test Type: Micronucleus test Species: Mouse
Cell type: Bone marrow Application Route: Dermal Method: OECD Test Guideline 474 Result: negative
Carcinogenicity
No data available
Reproductive toxicity
No data available
Specific target organ toxicity - single exposure
No data available
Specific target organ toxicity - repeated exposure
No data available
Aspiration hazard
No data available
Toxicity
LD50 orally in rats: 0.15 ml/kg (Deichmann, Mergard)

SECTION 12: Ecological information

Toxicity

Toxicity to fish
flow-through test LC50 - Oncorhynchus mykiss (rainbow trout) - > 100 mg/l - 96 h

(OECD Test Guideline 203)

Toxicity to daphnia and other aquatic invertebrates

static test EC50 - Daphnia magna (Water flea) - 38 mg/l - 48 h (OECD Test Guideline 202)

Toxicity to algae
static test ErC50 - Pseudokirchneriella subcapitata - 27 mg/l - 72 h (OECD Test Guideline 201)

Toxicity to bacteria
static test EC50 - activated sludge - 530 mg/l - 3 h (OECD Test Guideline 209)

Remarks: (in analogy to similar products)

The value is given in analogy to the following substances: Ammonium thioglycolate


Persistence and degradability

No data available

Bioaccumulative potential

No data available

Mobility in soil

No data available

Results of PBT and vPvB assessment

This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.

Other adverse effects

No data available

SECTION 13: Disposal considerations

Waste treatment methods

Incompatibilities

Compounds of the carboxyl group react with all bases. Incompatible with arsenic compounds, diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides , thiosulfates and dithionites.

Product

See www.retrologistik.com for processes regarding the return of chemicals and

containers, or contact us there if you have further questions.

Waste Disposal

Dissolve in flammable solvent and burn in furnace equipped with afterburner and alkaline scrubber.

SECTION 14: Transport information

UN number

ADR/RID: 1940 IMDG: 1940 IATA: 1940

UN proper shipping name


ADR/RID: THIOGLYCOLIC ACID IMDG: THIOGLYCOLIC ACID


IATA: Thioglycolic acid

14.3

Transport hazard class(es)

ADR/RID: 8 IMDG: 8


IATA: 8

14.4

Packaging group

ADR/RID: II IMDG: II


IATA: II

14.5

Environmental hazards

ADR/RID: no IMDG Marine pollutant: no


IATA: no

14.6

Special precautions for user

No data available


SECTION 15: Regulatory information

Safety, health and environmental regulations/legislation specific for the substance or mixture

Regulations on the Safety Management of Hazardous Chemicals
China Catalog of Hazardous chemicals 2015:Listed. website: https://www.mem.gov.cn/
Measures for Environmental Management of New Chemical Substances
Vietnam National Chemical Inventory:Listed. website: https://chemicaldata.gov.vn/
United States Toxic Substances Control Act (TSCA) Inventory:Listed. website: https://www.epa.gov/
Philippines Inventory of Chemicals and Chemical Substances (PICCS):Listed. website: https://emb.gov.ph/
New Zealand Inventory of Chemicals (NZIoC):Listed. website: https://www.epa.govt.nz/
Korea Existing Chemicals List (KECL):Listed. website: http://ncis.nier.go.kr
European Inventory of Existing Commercial Chemical Substances (EINECS):Listed. website: https://echa.europa.eu/
EC Inventory:Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC):Listed. website: https://www.mee.gov.cn/

SECTION 16: Other information

Abbreviations and acronyms

  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • CAS: Chemical Abstracts Service
  • EC50: Effective Concentration 50%
  • IATA: International Air Transportation Association
  • IMDG: International Maritime Dangerous Goods
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • STEL: Short term exposure limit
  • TWA: Time Weighted Average

References

【1】CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple

【2】ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp

【3】ECHA - European Chemicals Agency, website: https://echa.europa.eu/

【4】eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en

【5】ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg

【6】Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp

【7】HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm

【8】IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/

【9】IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home

【10】Sigma-Aldrich, website: https://www.sigmaaldrich.com/

Other Information

The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential.Immediate administration of an appropriate spray, by a doctor or a person authorized by him/her, should be considered.
Disclaimer:

The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.

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