Hydroquinone 123-31-9

Hydroquinone 123-31-9

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Classification:Other chemical raw materials
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PRODUCT DESCRIPTION
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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