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Benzyl Benzoate

1Characteristics and Application

1.1. Molecular formula, structural formula and molecular weight
Molecular formula: C12H12O2
Molecular weight: 212
Structural formula:


1.2. Characteristics

1.2.1. Appearance
Benzyl benzoate is a colorless or pale yellow viscous transparent liquid in the standard conditions. In the following 17 , it becomes white. Benzyl benzoate of high-purity would have faint scent of flowers under long-term storage.

1.2.2. Freezing poing
Freezing point: 17
In winter, because of being solid, the package of benzyl benzoate may be placed firstly in hot air chamber (35-70 ) or warm water (40-90 ) for water bath, and then it can be used after melting.

1.2.3. Boiling point
Boiling point: 323

Because of its high boiling point and low volatilization, it is a kind of flammable, but non-easily-flammable organic solvent.

1.2.4. Solubility
Benzyl benzoate does not dissolve in water, but insoluble in organic solvents. It is a good high-temperature solvent in itself. And it is the only solvent of Musk. Benzyl benzoate has applications for pharmacy and perfume industry just because of its characters that low volatilization of solvent and relative stability of ester.

1.2.5. Plasticity
Benzyl benzoate has good plasticity performance.

As a result of good plasticity, solvent, safety and environmental protection performance, benzyl benzoate is used in the lead agent, leveler, repair agent, and so on in textile auxiliaries.

1.2.6. Safety Performance

1.3. Applications

1.3.1 Main Applications
Benzyl benzoate is mainly used in Textile auxiliary, flavor spice, pharmacy, and plasticizer.

1.3.2. The application mechanism in textile auxiliaries and comparison with similar products
Benzyl benzoate is used as lead agent, leveler and repair agent in textile auxiliaries.
Mechanism: with the continuous development of the textile industry, cloth has been more and more high-grade. But the more high-grade cloth is, the more compact fabric is. So in dyeing, difficulty of coloring and uniformity is relatively larger. Benzyl benzoate has good plasticity performance. So it swells and draws away fiber to facilitate dye. At the same time, benzyl benzoate is a good solvent to dissolve easily and disperse dye evenly as well, which makes its evenly dyeing and migration property very excellent to dye fiber.
Similar properties of materials to benzyl benzoate are methylnaphthalene, dimethylnaphthalene, methyl salicylate, benzene ester. Comparison is as follows,

Product

Evenly dyeing property

Price

Comprehensive environmental safety property

(di-)methylnaphthalene

ordinary

low

Poor

benzene ester

ordinary

medium

Poor

methyl salicylate

excellent

high

Poor

benzyl benzoate

excellent

medium

good

It is precisely because of its better overall performance. Benzyl benzoate has more and more wide application in textile auxiliary.

2. Quality Standard

2.1. Our Quality Standard of Benzyl Benzoate
We produce two grades of benzyl benzoate, pharmacy (BP2000/USP24) and perfumery. Their specifications are as follows,

Items of Analysis

BP2000

Perfumery Grade

Appearance

colorless or yellowish transparent and oily liquid

colorless transparent liquid

Color (Hazen):

65

20

Fragrance

Light scent of flower

Content (GC)

99.0

99.90

Acidity (ml,0.1mNaOH 2.0g)

0.2

0.2

Specific gravity (20):

1.1181.122

1.1181.122

Refractive Index (D20)

1.5681.570

1.5681.570

Freezing point

17.0

17.0

Moisture

0.3

0.

Sulphate ash

0.1

0.

Minim chlorinity
(Copper network law)

negative reaction

2.2. Suggestion of choosing suitable grade for different application

2.2.1. Textile Auxiliary
In general, choose our company's BP2000 grade. If the color and smell are required specially, such as colorless or no irritating smell, the choice may be our perfumery grade.


2.2.2. Pharmacy & perfumery
You can use perfumery grade.

2.3. Storage and Package

2.3.1. Storage
Store in an airtight, well-filled container, protected from light.

2.3.2. Package
Iron or PVC drum
Net weight: 25kgs/drum, 200kgs/drum, 225kg/drum

 

 

 

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