Hydroquinone

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Hydroquinone Specification

Grade
Industrial grade Cosmetic grade

Usage
Primarily for industrial applications and cosmetic products

Structural Formula
C6H4(OH)2

Properties
Highly reactive with oxidizing agents reduces easily colorless or slightly colored crystals

Smell
Odorless to slight phenolic odor

Density
1.32 Gram per cubic centimeter(g/cm3)

Taste
Slightly bitter

Solubility
Soluble in water alcohol and ether

Ingredients
Pure hydroquinone compound

CAS No
123-31-9

Poisonous
Yes toxic if ingested inhaled or absorbed through the skin

Shape
Irregular crystalline shape

Shelf Life
2 years under proper storage conditions

Refractive Rate
Not applicable (solid state)

Appearance
Fine white to slightly off-white crystalline powder

EINECS No
204-617-8

Storage
Store in a cool dry place away from light and incompatible substances

Purity
Typically 99%

Melting Point
172C

Application
Used in photographic developers as an antioxidant for fats and oils and as an ingredient in skin-lightening products

HS Code
29072200

Molecular Weight
110.11 g/mol

Molecular Formula
C6H6O2

Ph Level
Approximately 4-7 (in aqueous solution)

Physical Form
Crystalline solid

About Hydroquinone

TBHQ is a highly effective antioxidant. In foods, it is used as a preservative for unsaturated vegetable oils and many edible animal fats.It does not cause discoloration even in the presence of iron, and does not change flavor or odor of the material to which it is added.It can be combined with other preservatives such as butylated hydroxyanisole (BHA).It is added to a wide range of foods, with the highest limit (1 gram/kg) permitted for frozen fish and fish products. Its primary advantage is enhancing storage life.

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