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79723-02-7

79723-02-7 structure
79723-02-7 structure
  • Name: TETRAMETHYLAMMONIUM HYDROGEN PHTHALATE
  • Chemical Name: 2-carboxybenzoate,tetramethylazanium
  • CAS Number: 79723-02-7
  • Molecular Formula: C12H17NO4
  • Molecular Weight: 239.26800
  • Create Date: 2018-03-18 08:00:00
  • Modify Date: 2024-01-06 19:05:37

Name 2-carboxybenzoate,tetramethylazanium
Synonyms Tetramethylammonium phthalate monobasic
monotetramethylammonium hydrogen phthalate
Phthalic acid mono(tetramethylammonium)salt
EINECS 416-900-5
MFCD00216634
Methanaminium,N,N,N-trimethyl-,1,2-benzenedicarboxylate (1:1)
Tetramethylammonium hydrogenphthalate
mono-tetramethylammonium phthalate
Melting Point 142-146ºC
Molecular Formula C12H17NO4
Molecular Weight 239.26800
Exact Mass 239.11600
PSA 77.43000
LogP 0.07070

Section1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE
Product identifiers
Product name: Tetramethylammonium hydrogenphthalate
CAS-No.: 79723-02-7
Relevant identified uses of the substance or mixture and uses advised against
Identified uses: Laboratory chemicals, Manufacture of substances



Section2. HAZARDS IDENTIFICATION
Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008 [EU-GHS/CLP]
Specific target organ toxicity - repeated exposure (Category 2)
Acute aquatic toxicity (Category 1)
Acute toxicity, Oral (Category 3)
Classification according to EU Directives 67/548/EEC or 1999/45/EC
Very toxic to aquatic organisms. Toxic if swallowed. Harmful: danger of serious damage to health by
prolonged exposure if swallowed.
Label elements
Labelling according Regulation (EC) No 1272/2008 [CLP]
Pictogram
Signal wordDanger
Hazard statement(s)
H373May cause damage to organs through prolonged or repeated exposure.
H400Very toxic to aquatic life.
H301Toxic if swallowed.
Precautionary statement(s)
P273Avoid release to the environment.
P301 + P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/
physician.
Supplemental Hazardnone
Statements
According to European Directive 67/548/EEC as amended.
Hazard symbol(s)
R-phrase(s)
R25Toxic if swallowed.
R48/22Harmful: danger of serious damage to health by prolonged exposure if
swallowed.
R50Very toxic to aquatic organisms.
S-phrase(s)
S25Avoid contact with eyes.
S36Wear suitable protective clothing.
S45In case of accident or if you feel unwell, seek medical advice immediately
(show the label where possible).
S61Avoid release to the environment. Refer to special instructions/ Safety
data sheets.
Other hazards - none

Section3. COMPOSITION/INFORMATION ON INGREDIENTS
Substances
Synonyms: Phthalic acid mono(tetramethylammonium)salt
Tetramethylammonium phthalatemonobasic
Formula: C12H17NO4
Molecular Weight: 239,27 g/mol
ComponentConcentration
Tetramethylammonium hydrogenphthalate
CAS-No.79723-02-7-
EC-No.416-900-5
Index-No.607-478-00-5

Section4. FIRST AID MEASURES
Description of first aid measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaled
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
In case of skin contact
Wash off with soap and plenty of water. Take victim immediately to hospital. Consult a physician.
In case of eye contact
Flush eyes with water as a precaution.
If swallowed
Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
Most important symptoms and effects, both acute and delayed
To the best of our knowledge, the chemical, physical, and toxicological properties have not been
thoroughly investigated.
Indication of any immediate medical attention and special treatment needed
no data available

Section5. FIREFIGHTING MEASURES
Extinguishing media
Suitable extinguishing media
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
Carbon oxides, nitrogen oxides (NOx)
Advice for firefighters
Wear self contained breathing apparatus for fire fighting if necessary.
Further information
no data available

Section6. ACCIDENTAL RELEASE MEASURES
Personal precautions, protective equipment and emergency procedures
Wear respiratory protection. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure adequate
ventilation. Evacuate personnel to safe areas. Avoid breathing dust.
Environmental precautions
Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the
environment must be avoided.
Methods and materials for containment and cleaning up
Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed
containers for disposal.
Reference to other sections
For disposal see section 13.

Section7. HANDLING AND STORAGE
Precautions for safe handling
Avoid contact with skin and eyes. Avoid formation of dust and aerosols.
Provide appropriate exhaust ventilation at places where dust is formed.
Conditions for safe storage, including any incompatibilities
Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
Specific end uses
no data available

Section8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Control parameters
Components with workplace control parameters
Exposure controls
Appropriate engineering controls
Avoid contact with skin, eyes and clothing. Wash hands before breaks and immediately after handling
the product.
Personal protective equipment
Eye/face 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 protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique
(without touching glove's outer surface) to avoid skin contact with this product. Dispose of
contaminated gloves after use in accordance with applicable laws and good laboratory practices.
Wash and dry hands.
The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and
the standard EN 374 derived from it.
Body Protection
Complete suit protecting against chemicals, The type of protective equipment must be selected
according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection
Where risk assessment shows air-purifying respirators are appropriate use a full-face particle
respirator type N99 (US) or type P2 (EN 143) respirator cartridges as a backup to engineering
controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use
respirators and components tested and approved under appropriate government standards such
as NIOSH (US) or CEN (EU).

Section9. PHYSICAL AND CHEMICAL PROPERTIES
Information on basic physical and chemical properties
a) AppearanceForm: crystalline
Colour: white
b) Odourno data available
c) Odour Thresholdno data available
d) pHno data available
e) Melting point/freezingMelting point/range: 148 - 150 °C - lit.
point
f) Initial boiling point and no data available
boiling range
g) Flash pointno data available
h) Evaporation rateno data available
i) Flammability (solid, gas) no data available
j) Upper/lowerno data available
flammability or
explosive limits
k) Vapour pressureno data available
l) Vapour densityno data available
m) Relative densityno data available
n) Water solubilityno data available
o) Partition coefficient: n- no data available
octanol/water
p) Autoignitionno data available
temperature
q) Decompositionno data available
temperature
r) Viscosityno data available
s) Explosive propertiesno data available
t) Oxidizing propertiesno data available
Other safety information
no data available

Section10. STABILITY AND REACTIVITY
Reactivity
no data available
Chemical stability
no data available
Possibility of hazardous reactions
no data available
Conditions to avoid
no data available
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
Other decomposition products - no data available

Section11. TOXICOLOGICAL INFORMATION
Information on toxicological effects
Acute toxicity
no data available
Skin corrosion/irritation
no data available
Serious eye damage/eye irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
IARC:No component of this product present at levels greater than or equal to 0.1% is identified as
probable, possible or confirmed human carcinogen by IARC.
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
Potential health effects
InhalationMay be harmful if inhaled. May cause respiratory tract irritation.
IngestionToxic if swallowed.
SkinMay be harmful if absorbed through skin. May cause skin irritation.
EyesMay cause eye irritation.
Signs and Symptoms of Exposure
To the best of our knowledge, the chemical, physical, and toxicological properties have not been
thoroughly investigated.
Additional Information
RTECS: Not available

Section12. ECOLOGICAL INFORMATION
Toxicity
no data available
Persistence and degradability
no data available
Bioaccumulative potential
no data available
Mobility in soil
no data available
Results of PBT and vPvB assessment
no data available
Other adverse effects
Very toxic to aquatic life.
Avoid release to the environment.

Section13. DISPOSAL CONSIDERATIONS
Waste treatment methods
Product
Offer surplus and non-recyclable solutions to a licensed disposal company. Dissolve or mix the material
with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber.
Contaminated packaging
Dispose of as unused product.

Section14. TRANSPORT INFORMATION
UN number
ADR/RID: 2811IMDG: 2811IATA: 2811
UN proper shipping name
ADR/RID: TOXIC SOLID, ORGANIC, N.O.S. (Tetramethylammonium hydrogenphthalate)
IMDG: TOXIC SOLID, ORGANIC, N.O.S. (Tetramethylammonium hydrogenphthalate)
IATA:Toxic solid, organic, n.o.s. (Tetramethylammonium hydrogenphthalate)
Transport hazard class(es)
ADR/RID: 6.1IMDG: 6.1IATA: 6.1
Packaging group
ADR/RID: IIIIMDG: IIIIATA: III
Environmental hazards
ADR/RID: yesIMDG Marine pollutant: yesIATA: no
Special precautions for user
no data available



SECTION 15 - REGULATORY INFORMATION
N/A


SECTION 16 - ADDITIONAL INFORMATION
N/A
Hazard Codes T: Toxic;N: Dangerous for the environment;
Risk Phrases 25-48/22-50
Safety Phrases 25-36-45-61
RIDADR UN 2811 6.1/PG 3
Packaging Group III
Hazard Class 6.1
HS Code 2923900090
Precursor  3

DownStream  0

HS Code 2923900090
Summary 2923900090 other quaternary ammonium salts and hydroxides。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%