Monochloroacetic Acid

99% (mono) For Laboratory Use
CAS Number
79-11-8
HSN Code
29154010
Molecular Formula
C2H3ClO2
Catalogue Number
AL1251
Purity
≥ 99%
Molecular Weight
94.50 g/mol

Complies with : IP | BP | USP | EP | ACS

ISO 9001 ISO 14001 GMP COA with every batch

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Key Properties

Appearance Monoclinic prisms
Shelf Life 2 years
Packaging Available in: 500 gm glass bottle
Storage Separated from incompatible materials and food and feedstuffs. See Chemical Dangers. Dry. Store only in original container. Well closed. Ventilation along the floor. Store in an area without drain or sewer access.

Chloroacetic acid is a chlorocarboxylic acid that is acetic acid carrying a 2-chloro substituent. It has a role as an alkylating agent and a herbicide.

Also known as Chloroacetic acid.

Catalogue No.
AL1251
CAS Number
79-11-8
Molecular Formula
C2H3ClO2
Molecular Weight
94.50 g/mol
HSN Code
29154010
Grade
99% (mono)
Product Form
Substance

Melting point: Exists in alpha, beta, and gamma forms having mp 63 °C, 55-56 °C, and 50 °C; Boiling point: 189.1 °C; Flash point: 150 °C; Density: 1.58 at 20 °C/20 °C (solid); Solubility: In water, 8.58X10+5 mg/L at 25 °C.

Appearance
Monoclinic prisms
Shelf Life
2 years
Packaging
Available in: 500 gm glass bottle
Storage
Separated from incompatible materials and food and feedstuffs. See Chemical Dangers. Dry. Store only in original container. Well closed. Ventilation along the floor. Store in an area without drain or sewer access.

1.1 — Product identifier

Chemical Name
Monochloroacetic Acid
Catalogue No.
AL1251
Product form
Substance
CAS Number
79-11-8
EC Number
201-178-4
Grade
99% (mono)
EC Index Number
607-095-00-7
Chemical Formula
C2H3ClO2
HSN Code
29154010
Synonyms
Chloroacetic acid

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

Use of the substance/mixture
Intermediate in the production of herbicides and carboxymethyl cellulose.
Uses advised against
Not specified

1.3 — Details of the supplier of the safety data sheet

Company identification
Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.

1.4 — Emergency Contact Details

Phone / e-Mail
Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in

2.1 — Classification of the substance or mixture

Classification according to Regulation (EC) No 1272/2008
Acute Tox. 3; Skin Corr. 1B; Eye Dam. 1; STOT SE 3; Aquatic Acute 1
Classification source
ECHA C&L Inventory via PubChem CID 300 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements

2.2 — Label elements

Hazard pictograms
Corrosive, Acute Toxic, Environmental Hazard
Signal word
Danger
Hazard statements
H301: Toxic if swallowed; H311: Toxic in contact with skin; H314: Causes severe skin burns and eye damage; H318: Causes serious eye damage; H331: Toxic if inhaled; H335: May cause respiratory irritation; H400: Very toxic to aquatic life

2.3 — Other hazards

Other hazards
Corrosive to metals; may cause severe skin burns and eye damage.

3.1 — Substance

Name
Monochloroacetic Acid
CAS No.
79-11-8

4.1 — Description of first aid measures

First-aid measures after inhalation
Remove victim to fresh air.
First-aid measures after skin contact
Flush with water.
First-aid measures after eye contact
Flush with running water for 15 min.
First-aid measures after ingestion
Give large amount of water to dilute the acid.

4.2 — Most important symptoms and effects, both acute and delayed

Symptoms relating to use
Burning sensation, coughing, shortness of breath, skin burns, eye damage.

4.3 — Indication of any immediate medical attention and special treatment needed

General information
Treat symptomatically. Show this safety data sheet to the treating physician.

5.1 — Extinguishing media

Suitable extinguishing media
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Unsuitable extinguishing media
Not specified

5.2 — Special hazards arising from the substance or mixture

Special procedures
Gives off irritating or toxic fumes (or gases) in a fire.

5.3 — Advice for firefighters

Protection during firefighting
Do not enter fire area without proper protective equipment, including respiratory protection.

6.1.1 — For non-emergency personnel

Emergency procedures
Evacuate area. Wear appropriate protective equipment. Contain spill and absorb with inert material.

6.3 — Methods and material for containment and cleaning up

Methods for cleaning up
Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Do NOT wash away into sewer. Sweep spilled substance into covered containers.

6.4 — Reference to other sections

Reference
Not specified

7.1 — Precautions for safe handling

Precautions for safe handling
Use only in a fume hood. Wear gloves, goggles, and protective clothing.
Hygiene measures
Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.

7.2 — Conditions for safe storage, including any incompatibilities

Storage conditions
Separated from incompatible materials and food and feedstuffs. See Chemical Dangers. Dry. Store only in original container. Well closed. Ventilation along the floor. Store in an area without drain or sewer access.

8.2 — Exposure controls

Hand protection
Protective gloves (e.g. nitrile rubber)
Eye protection
Face shield and safety glasses. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166 (EU).
Skin and body protection
Wear suitable protective clothing
Respiratory protection
Use appropriate respiratory protection if ventilation is inadequate.

9.1 — Information on basic physical and chemical properties

Physical state
Solid or liquid
Colour
White to colorless
Odour
Strong vinegar-like odor
Odour threshold
Not specified
pH value
Not specified
Relative evaporation rate (butylacetate=1)
Not specified
Melting point
Exists in alpha, beta, and gamma forms having mp 63 °C, 55-56 °C, and 50 °C
Freezing point
Not specified
Boiling point
189.1 °C
Flash point
150 °C
Auto-ignition temperature
>932 °F (>500 °C)
Decomposition temperature
Not specified
Flammability (solid, gas)
Not flammable
Vapour pressure
6.5X10-2 mm Hg (8.68X10-3 kPa) at 25 °C
Relative vapour density at 20°C
3.26 (Air = 1)
Density
1.58 at 20 °C/20 °C (solid)
Solubility
In water, 8.58X10+5 mg/L at 25 °C
Log Pow
0.22
Viscosity, kinematic
Not specified
Viscosity, dynamic
Not specified
Explosive properties
Not explosive
Oxidising properties
Not oxidizing
Explosive limits
Not applicable

10.1 — Reactivity

Reactivity
Reacts violently with strong bases and oxidizing agents.

10.2 — Chemical stability

Chemical stability
Stable under recommended storage conditions.

10.3 — Possibility of hazardous reactions

Possibility of hazardous reactions
Decomposes on burning. This produces toxic fumes including hydrogen chloride and phosgene. The solution in water is a medium strong acid.

10.4 — Conditions to avoid

Conditions to avoid
Avoid contact with incompatible materials and excessive heat.

10.5 — Incompatible materials

Incompatible materials
Strong bases, strong oxidizers, and metals.

10.6 — Hazardous decomposition products

Hazardous decomposition products
Hazardous decomposition products formed under fire conditions: Carbon oxides, hydrogen chloride gas.

11.1 — Information on toxicological effects

Acute toxicity
LD50 Rat oral 76 mg/kg; LD50 Mouse oral 255 mg/kg; LD50 Guinea pig oral 80 mg/kg
Skin corrosion/irritation
H314: Causes severe skin burns and eye damage
Serious eye damage/irritation
H318: Causes serious eye damage
Respiratory or skin sensitisation
Not classified (based on available data)
Germ cell mutagenicity
Not classified (based on available data)
Carcinogenicity
Not classified (based on available data)
Specific target organ toxicity (single exposure)
H335: May cause respiratory irritation
Specific target organ toxicity (repeated exposure)
Not classified (based on available data)

12.1 — Toxicity

Toxicity information
Not specified

12.2 — Persistence - degradability

Persistence - degradability
Not specified

12.3 — Bioaccumulative potential

Bioaccumulative potential
Not specified

12.4 — Mobility in soil

Mobility in soil
Not specified

12.6 — Other adverse effects

Environmental precautions
Not specified

13.1 — Waste treatment methods

Additional Info
Dispose of contents/container in accordance with local, regional, national and international regulations.

14.1 — UN number

UN-No. (ADR)
1751
UN-No. (IMDG)
1751
UN-No. (IATA)
1751
UN-No. (ADN)
1751
UN-No. (RID)
1751

14.2 — UN proper shipping name

Proper Shipping Name (ADR)
Monochloroacetic Acid
Proper Shipping Name (IMDG)
Monochloroacetic Acid
Proper Shipping Name (IATA)
Monochloroacetic Acid
Proper Shipping Name (ADN)
Monochloroacetic Acid
Proper Shipping Name (RID)
Monochloroacetic Acid

14.3 — Transport hazard class(es)

Transport hazard class(es)
6.1 (8)

14.4 — Packing group

Packing group (ADR)
II
Packing group (IMDG)
II
Packing group (IATA)
II
Packing group (ADN)
II
Packing group (RID)
II

14.5 — Environmental hazards

Dangerous for the environment
Not specified
Marine pollutant
Not specified
Other information
No supplementary information available

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

15.1.1 EU-Regulations
Not specified

Used as a carboxymethylating agent in CMC production and as an intermediate in herbicide (MCPA-type) synthesis.

ISO 9001 ISO 14001 GMP COA with every batch
Batch Number
AL-2026-AL00443
Manufacturing Date
September-2026
Expiry Date
September-2031
Molecular Weight
94.50 g/mol
Test Standard Observed
Assay ≥ 99% 99.5%
Moisture Content ≤ 0.5% 0.3%
Residue on Ignition ≤ 0.1% 0.05%
Related Substances None detected None detected
Solubility Freely soluble in water Freely soluble in water

The above product is expected to comply with 99% (mono) grade specification.

Technical Data Sheet

Grade Assay/Purity Melting/Boiling Point Moisture/LOD Residue on Ignition Related Substances Solubility
99% (mono) ≥ 99% m.p. Exists in alpha, beta, and gamma forms having mp 63 °C, 55-56 °C, and 50 °C; b.p. 189.1 °C ≤ 0.5% ≤ 0.1% None detected In water, 8.58X10+5 mg/L at 25 °C
View full Technical Data Sheet

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