Common Name:

Hydroquinone

Synonyms:

1,4-Benzenediol;

1,4-Dihydroxy-benzeen;

1,4-Dihydroxybenzene;

 Hydroquinol;

Quinol;

CAS No.:

123-31-9

EINECS No.:

204-617-8

Appearance:

white powdery crystal

Density:

1.32

Flash Point:

165 °C

Melting Point:

170-175 °C(lit.)

Boiling Point:

285 °C(lit.)

Stability:

Stable. Combustible. Light and air-sensitive. Discolours in air.

Incompatible with strong oxidizing agents, strong bases, oxygen, ferric salts.

Molecular Formula:

C6H6O2

Molecular Weight:

110.11

Molecular Structure:

Product name: Hydroquinone (Photo grade)

Manufacturer: Ningbo Titan Unichem Co., Ltd.

Items

Specifications

Appearance

White crystal or powder

Purity

99.5% - 101%

Range of Melting Point

171 - 175°C

Test of Solubility in Dilute Acetic Acid

transparently colorless

Residue on Ignition

0.05% max

Heavy metals (as Pb)

0.002% max

Iron (Fe)

0.005% max

Hazard Class:

9

RIDADR:

UN 3077

Packing Group:

III

HS Code:

2907221000

Safety Statements:

S26-S36/37/39-S61

Risk Statements:

R22; R40; R41; R43; R50; R68         

Hazard Codes:

Xn: Harmful