Hydroquinone manufacturers and suppliers

Hydroquinone suppliers

Properties

Melting point:: 172-175 °C(lit.)

Boiling point:: 285 °C(lit.)

Density: 1.32

vapor density: 3.81 (vs air)

vapor pressure: 1 mm Hg ( 132 °C)

refractive index: 1.6320

Flash point:: 165 °C

storage temp.: Store below +30°C.

solubility: H₂O: 50 mg/mL, clear

pka: 10.35(at 20℃)

form: Needle-Like Crystals or Crystalline Powder

color: White to off-white

Odor: odorless

Water Solubility: 70 g/L (20 ºC)

Sensitive: Air & Light Sensitive

Merck: 14,4808

BRN: 605970

Henry's Law Constant: (x 10^-9 atm?m³/mol): <2.07 at 20 °C (approximate - calculated from water solubility and vapor pressure)

Exposure limits: NIOSH 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.

InChIKey: QIGBRXMKCJKVMJ-UHFFFAOYSA-N

LogP: 0.59 at 20℃

Safety Information

Symbol(GHS): GHS05,GHS07,GHS08,GHS09

Signal word: Danger

Hazard statements: H302-H318-H341-H351-H410

Precautionary statements: P202-P273-P280-P301+P312-P305+P351+P338-P308+P313

Hazard Codes: Xn,N

Risk Statements: 22-40-41-43-50-68-R68-R50-R43-R41-R40-R22

Safety Statements: 26-36/37/39-61-S61-S36/37/39-S26

RIDADR: 2662

WGK Germany: 3

RTECS: MX3500000

Autoignition Temperature: 930 °F

TSCA: Yes

HazardClass: 9

PackingGroup: III

HS Code: 29072210

Toxicity: LD50 orally in rats: 320 mg/kg (Woodard)

IDLA: 50 mg/m3

Use

hydroquinone is a pigment-lightening agent used in bleaching creams. Hydroquinone combines with oxygen very rapidly and becomes brown when exposed to air. Although it occurs naturally, the synthetic version is the one commonly used in cosmetics. Application to the skin may cause allergic reaction and increase skin sun sensitivity. Hydroquinone is potentially carcinogenic and is associated with causing ochronosis, a discoloration of the skin. The u.S. FDA has banned hydroquinone from oTC cosmetic formulations, but allows 4 percent in prescription products. Its use in cosmetics is prohibited in some european countries and in Australia.

You can find Hydroquinone suppliers, manufacturers, and distributors from countries such as China, United States and the India here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.