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2,3,5,6-Tetramethylterephthalic acid

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Formula: C6H18Si2
CAS: 1450-14-2
search Element: tetramethylterephthalic acid
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Identification

Structural Formula
2,3,5,6-Tetramethylterephthalic acid
CAS:
1450-14-2
EINECS:
215-911-0
Molecular Formula:
C6H18Si2
MDL:
MFCD00008258
Synonym:
disilane m6 ; six methyl two silane ; ch7280 ; hmd ; permethyldisilane ; (ch3)6si2 ; disilane,hexamethyl- ; hecamethyldisilane ; hexamethyldisilane ; hexamethyl-disilan




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Finetech Industry Limited
FIL18007200
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Prices & Availability




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Properties for 2,3,5,6-Tetramethylterephthalic acid

Molecular Weight:
146.38 g·mol−1
Density:
0.715 g/mL at 25 °C(lit.)
Melting point:
9-12 °C(lit.)
Boiling point:
112-114 °C(lit.)
Flash point:
29 ºF
Physical Description:
colorless clear liquid
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Hazard Statements

GHS02

GHS02
Flammable
  • Flammable gases, category 1
  • Flammable aerosols, categories 1, 2
  • Flammable liquids, categories 1, 2, 3
  • Flammable solids, categories 1, 2
  • Self-reactive substances and mixtures, types B, C, D, E, F
  • Pyrophoric liquids, category 1
  • Pyrophoric solids, category 1
  • Combustible solids, category 3
  • Combustible liquids, category 3
  • Self-heating substances and mixtures, categories 1, 2
  • Substances and mixtures, which in contact with water, emit flammable gases, categories 1, 2, 3
  • Organic peroxides, types B, C, D, E, F
GHS07

GHS03
Harmful
  • Acute toxicity (oral, dermal, inhalation), category 4
  • Skin irritation, categories 2, 3
  • Eye irritation, category 2A
  • Skin sensitization, category 1
  • Specific target organ toxicity following single exposure, category 3
    - Respiratory tract irritation
    - Narcotic effects
    • Not used
  • with the "skull and crossbones" pictogram
  • for skin or eye irritation if:
  • the "corrosion" pictogram also appears
  • the "health hazard" pictogram is used to indicate respiratory sensitization

Safety & Transport Information

Risk Codes:
R11 - Highly flammable
R36/37 - Irritating to eyes and respiratory system
R36/37/38 - Irritating to eyes, respiratory system and skin
R43 - May cause sensitisation by skin contact
Safety Codes:
S16 - Keep away from sources of ignition - No smoking
S23 - Do not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer)
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S33 - Take precautionary measures against static discharges
S45 - In case of accident or if you feel unwell seek medical advice immediately (show the label where possible)
S7/9 - Keep container tightly closed and in a well-ventilated place
S9 - Keep container in a well-ventilated place
Hazard Classes:
3
Hazard Symbols:
F, Xi
Hazard symbol F Hazard symbol Xi
Storage temperature :
Flammables area
RID/ADR certification :
UN 1993 3 / PG 2
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Alternative Distributors of [2,3,5,6-Tetramethylterephthalic acid]

Producers or manufacturers change the product range from time to time. Currently there are no other manufacturers known.
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MSDS:
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