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Hydroquinone 123-31-9

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  • Hydroquinone 123-31-9
  • Hydroquinone 123-31-9
  • Hydroquinone 123-31-9
  • Hydroquinone 123-31-9

›

Hydroquinone 123-31-9
Hydroquinone (hydroquinone) is an important fine chemical intermediate. Our company can stably supply products in multiple grades, including photographic grade, industrial grade, and analytical grade. We strictly adhere to national standards such as GB/T 22392-2008 and GB/T 23959-2009, and support third-party testing (SGS, BV, etc.). Leveraging major ports such as Qingdao Port, Tianjin Port, and Shanghai Port, we can efficiently arrange export sea freight and support small-batch trial orders and customized packaging.
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- Product Parameters -

Chemical NameHydroquinone
CAS No.123-31-9
Product CategoriesAPI
Molecular FormulaC6H6O2
Formula Weight110.11
AppearanceWhite Crystalline Powder
Packaging Method25kg/Bag
Type Of TransportationBy Air/By Sea/By Train/By Express
SampleAvailable

Product Description Of Hydroquinone 123-31-9

Paraformaldehyde (PFA) is the smallest polyoxymethylene, the polymerization product of formaldehyde with a typical degree of polymerization of 8–100 units. Paraformaldehyde commonly has a slight odor of formaldehyde due to decomposition. Paraformaldehyde is a poly-acetal.

Chemical Properties Of Hydroquinone 123-31-9

Melting point172-175 °C(lit.)
Boiling point285 °C(lit.)
density1.32
vapor density3.81 (vs air)
vapor pressure1 mm Hg ( 132 °C)
refractive index1.6320
Fp165 °C
storage temp.Store below +30°C.
solubilityH2O: 50 mg/mL, clear
pka10.35(at 20℃)
formNeedle-Like Crystals or Crystalline Powder
colorWhite to off-white
Odorodorless
Water Solubility70 g/L (20 ºC)
SensitiveAir & Light Sensitive
Merck14,4808
BRN605970
Henry’s Law Constant(x 10-9 atm?m3/mol): <2.07 at 20 °C (approximate – calculated from water solubility and vapor pressure)
Exposure limitsNIOSH REL: 15-min ceiling 2, IDLH 50; OSHA PEL: TWA 2; ACGIH TLV: TWA 2 (adopted).
Stability:Stable. Combustible. Incompatible with strong oxidizing agents, strong bases, oxygen, ferric salts. Light and air-sensitive. Discolours in air.
InChIKeyQIGBRXMKCJKVMJ-UHFFFAOYSA-N
LogP0.59 at 20℃
CAS DataBase Reference123-31-9(CAS DataBase Reference)
NIST Chemistry ReferenceHydroquinone(123-31-9)
IARC3 (Vol. 15, Sup 7, 71) 1999
EPA Substance Registry SystemHydroquinone (123-31-9)

Safety Information Of Hydroquinone 123-31-9

Hazard CodesXn,N
Risk Statements22-40-41-43-50-68-R68-R50-R43-R41-R40-R22
Safety Statements26-36/37/39-61-S61-S36/37/39-S26
OELCeiling: 2 mg/m3 [15-minute]
RIDADR2662
WGK Germany3
RTECSMX3500000
Autoignition Temperature930 °F
TSCAYes
HazardClass9
PackingGroupIII
HS Code29072210
Hazardous Substances Data123-31-9(Hazardous Substances Data)
ToxicityLD50 orally in rats: 320 mg/kg (Woodard)
IDLA50 mg/m3

Product Application Of Hydroquinone 123-31-9

Photographic reducer and developer; antioxidant; stabilizing agent for some polymers; intermediate in the manufacturing of some dyes and pigments; in cosmetic formulations.


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