BENZOIN HA501

Benzoin HA501 is an effective degassing additive that helps powder coatings release trapped air and gases during curing.
Benzoin HA501 reduces pinholes, bubbles, craters, and surface defects, allowing the final coating film to appear smoother and more uniform.
Benzoin HA501's use in epoxy, polyester, acrylic, polyurethane, and hybrid powder coating systems improves film formation, gloss, and overall surface quality.

CAS Number: 119-53-9
EC Number: 204-331-3
Molecular Formula: C14H12O2
Molecular Weight: 212.24

Synonyms: BENZOIN, 119-53-9, 2-Hydroxy-1,2-diphenylethanone, 2-Hydroxy-2-phenylacetophenone, Benzoylphenylcarbinol, Ethanone, 2-hydroxy-1,2-diphenyl-, DL-BENZOIN, (+-)-Benzoin, Phenylbenzoyl carbinol, alpha-Hydroxy-alpha-phenylacetophenone, alpha-Hydroxybenzyl phenyl ketone, Aerozoin, desyl alcohol, Phenyl-alpha-hydroxybenzyl ketone, FEMA No. 2132, NCI-C50011, (RS)-Benzoin, Hydroxy-2-phenyl acetophenone, Wy 42956, DTXSID1020144, NSC-8082, L7J6A1NE81, DTXCID10144, CHEBI:17682, RefChem:578585, BENZOIN, (+-)-, 2 hydroxy 1,2 diphenylethanone, 204-331-3, 209-441-5, 579-44-2, 2-hydroxy-1,2-diphenylethan-1-one, Acetophenone, 2-hydroxy-2-phenyl-, 2-hydroxy-1,2-diphenyl-ethanone, NSC 8082, MFCD00004496, a-Hydroxybenzyl phenyl ketone, CHEMBL190677, Phenyl-.alpha.-hydroxybenzyl ketone, Ketone, .alpha.-hydroxybenzyl phenyl, NCGC00091396-02, .alpha.-Hydroxy-.alpha.-phenylacetophenone, CCRIS 75, CAS-119-53-9, Benzoin (VAN), HSDB 384, Ketone, alpha-hydroxybenzyl phenyl, EINECS 204-331-3, EINECS 209-441-5, Fenyl-alpha-hydroxybenzylketon [Czech], benzoine, BRN 0391839, UNII-L7J6A1NE81, Fenyl-alpha-hydroxybenzylketon, WY-42956, AI3-00851, Benzoin absolute, CCRIS 9123, DL-Benzoin; Desyl alcohol;(+/-)-2-Hydroxy-2-phenylacetophenone, 2-hydroxy-1,2-diphenyl ethanone, Alpha-hydroxy-a-phenylacetophenone, benzoin resin siam, PhCH(OH)COPh, PhCOCH(OH)Ph, Benzoin, 98%, (+/-)-benzoin, (1)-2-Hydroxy-1,2-diphenylethan-1-one, Benzoin, >=98%, BENZOIN [MI], (.+/-.)-Benzoin, WLN: QYR&VR, hydroxybenzyl phenyl ketone, SCHEMBL145, EC 204-331-3, Hydroxy-a-phenylacetophenone, Hyperabsolute benzoin, Siam, Benzoin, analytical standard, Hydroxy-2-phenylacetophenone, Oprea1_687165, 4-08-00-01279 (Beilstein Handbook Reference), MLS002152893, a-Hydroxy-a-phenylacetophenone, FEMA No. 2133, orb1303537, SCHEMBL3275656, SCHEMBL6033766, 2-hydroxy-2-phenyl-acetophenone, BENZOIN, (+/-)-, Fenyl-.alpha.-hydroxybenzylketon, SCHEMBL27565550, SCHEMBL27703917, BDBM22728, FEMA 2132, HSDB 1929, NSC8082, alpha -Hydroxybenzyl phenyl ketone, HMS3039I03, Phenyl-alpha -hydroxybenzyl ketone, .alpha.-Hydroxybenzyl phenyl ketone, HY-B1550, Tox21_111126, Tox21_201888, Tox21_302790, BBL011613, EBC-14458, MSK159940, SBB012413, STK358785, AKOS000118894, AKOS016038141, Tox21_111126_1, 2-Hydroxy-1,2-diphenylethanone, 9CI, Benzoin 100 microg/mL in Acetonitrile, CS-W020562, DB14020, FB34686, MSK159940-100T, alpha -Hydroxy-alpha -phenylacetophenone, Benzoin Solution in Toluene, 100ug/mL, MSK159940-1000T, NCGC00091396-01, NCGC00091396-03, NCGC00091396-05, NCGC00256433-01, NCGC00259437-01, AC-11139, Benzoin Solution in Toluene, 1000ug/mL, Benzoin, Vetec(TM) reagent grade, 98%, BS-14748, DA-51025, SMR001224505, ST069353, DB-018065, B0079, B0222, Benzoin Zone Refined (number of passes:40), Benzoin, purified by sublimation, >=99.5%, NS00001432, T3939, EN300-18095, C01408, D77908, SBI-0653864.0001, (+/-)-2-HYDROXY-1,2-DIPHENYLETHANONE, AE-848/06163047, Ethanone, 2-hydroxy-1,2-diphenyl-, (.+/-.)-, F235660, Q426819, SR-01000854680, SR-01000854680-2, BRD-A55748233-001-08-7, Z57160197, F0001-0307, DL-Benzoin; Desyl alcohol;()-2-Hydroxy-2-phenylacetophenone, Ethanone, 2-hydroxy-1,2-diphenyl-, mixt. with aloe, storax and Tolu Balsam, tincture, I<<-Hydroxybenzyl phenyl ketone, I<<-Hydroxy-I<<-phenylacetophenone, 2-Hydroxy-2-phenylacetophenone

Benzoin HA501 can be applied to powder coating as degassing agent.
Benzoin HA501 is an excellent additive for powder coating, and by far the most effective degassing agent.

Benzoin HA501 is a fragrant, yellowish-brown resin that occurs naturally, particularly in the trunks of Styrax Benzoin HA501 and Styrax tonkinensis trees.
Benzoin HA501 is extracted through incisions made in the tree trunk and hardens over time, becoming processable.
Known for its aromatic properties, Benzoin HA501 holds an important place in both natural perfumery and traditional healing practices.

Benzoin HA501 is known in organic chemistry as an aromatic ketone-alcohol compound.
Benzoin HA501's molecular structure contains both a hydroxyl (-OH) and a carbonyl (C=O) group.

Benzoin HA501 is usually represented by the structure C₆H₅-CHOH-CO-C₆H₅.
Benzoin HA501 occurs naturally in aromatic resins obtained from certain trees under the name "Benzoin HA501 resin"; however, industrially it is generally synthesized by the condensation of benzaldehydes.

Benzoin HA501 is a Benzoin HA501-based degassing additive used mainly in powder coating formulations.
Benzoin HA501 helps reduce pinholes, bubbles, craters, and other gas-related surface defects during the curing process of powder coatings.

Benzoin HA501 is especially useful in polyester, acrylic, epoxy-polyester, and other thermosetting powder coating systems where smooth film formation, better surface appearance, and improved coating quality are required.
Benzoin HA501 itself is a well-known degassing agent for powder coatings, helping trapped gases dissolve or escape before the coating film fully hardens.

Types and Varieties of Benzoin HA501:
Benzoin HA501 types on the market are generally classified according to the region where they are produced and the type of tree.

Here are the most common types:

Siamese Benzoin HA501:
Obtained from the Styrax tonkinensis tree, which grows in Thailand and Laos.
With its light color and mild vanilla scent, Benzoin HA501 is common in the cosmetics and perfumery industries.

Sumatra Benzoin HA501:
Produced from the Styrax Benzoin HA501 tree, which grows on the island of Sumatra in Indonesia.
Benzoin HA501 is darker in color and has a resinous, strong aroma.
Benzoin HA501 is commonly used in traditional incense and medicinal oils.

Pure Benzoin HA501 Resin:
This is the pure and natural form, containing no additives.
Benzoin HA501 is generally preferred by brands that produce organically.

Uses of Benzoin HA501:
Benzoin HA501 is mainly used as a degassing additive in powder coating formulations.
Benzoin HA501 helps eliminate trapped air and gas bubbles during melting and curing, reducing pinholes, craters, bubbles, haze, and other surface defects in the final coating film.

Benzoin HA501 is suitable for epoxy, epoxy-polyester, polyester, acrylic, polyurethane, and thermosetting powder coating systems where a smoother and more uniform surface is required.
Benzoin HA501 also supports better film formation by allowing gases to escape before the coating fully hardens, improving surface appearance, gloss, and coating quality.

Benzoin HA501 is used as a flavor, antiseptic, photopolymerization catalyst, and in organic syntheses.
Benzoin HA501 has a wide range of uses.

Benzoin HA501 has numerous applications in both traditional and modern sectors:

Cosmetics and Skin Care:
Benzoin HA501 is widely used in skin care products due to its antiseptic and soothing properties.
Benzoin HA501 is particularly preferred for its purifying effect on acne-prone skin.
Benzoin HA501 is also used as a preservative in lip balms, lotions, and hand creams.

Perfumery and Aromatherapy:
Benzoin HA501, frequently used in perfume bases due to its sweet and long-lasting scent, also offers relaxing effects when combined with essential oils.
Benzoin HA501 is preferred in aromatherapy for its calming and stress-reducing effects.

Medical and Pharmaceutical Use:
Benzoin HA501 is used in traditional medicine as a wound healer and germicide, Benzoin HA501 is also found in some antiseptic solutions today.
Benzoin HA501 is especially used in throat sprays and respiratory balms.

Incense and Religious Rituals:
With its natural and pleasant scent, Benzoin HA501, when used in incense form, adds freshness and spiritual depth to the environment.
Burned for centuries in different cultures for spiritual purification, Benzoin HA501 incense is still used in many meditation and worship practices.

Industry Uses:
Surfactant (surface active agent)
Binder
Not Known or Reasonably Ascertainable
Viscosity modifiers

Consumer Uses:
Not Known or Reasonably Ascertainable
Aerating and deaerating agents
Other
Surfactant (surface active agent)

Applications of Benzoin HA501:
The function of Benzoin HA501 is to eliminate the bubbles in the melting powder coating, i.e. eliminate the key factor resulting in film pinhole.
Benzoin HA501 can be applied in all categories of powder coating.

Application method: mix with other ingredients directly before extrusion.
The recommended dosage is about 0.3-0.8% calculated on total formulation weight.

The precise amount shall be based on the lab test.
Benzoin HA501's dosage should be properly controlled to obtain suitable film, as superfluous Benzoin HA501 may cause yellowing phenomenon.

Properties of Benzoin HA501:

The prominent properties of Benzoin HA501 are as follows:

Aromatic Structure:
Benzoin HA501 stands out with its sweet, vanilla-like and slightly spicy scent.
Because of this characteristic, Benzoin HA501 is frequently preferred in fragrance products and incense.

Antiseptic Effect:
Thanks to its natural components, Benzoin HA501 can exhibit disinfectant properties on the skin surface.

Preservative Effect:
Benzoin HA501 is used to protect formulations in cosmetic and pharmaceutical products.

Solubility:
Benzoin HA501 is well soluble in alcohol and essential oils, which is an advantage in essential oil blends.

Stability and Reactivity of Benzoin HA501:

Chemical stability:
Benzoin HA501 is stable under normal recommended handling and storage conditions.

Reactivity:
No dangerous reaction is expected when the product is used and stored properly.

Conditions to avoid:
Excessive heat, open flames, sparks, ignition sources, dust formation, and poor ventilation should be avoided.

Incompatible materials:
Strong oxidizing agents and highly reactive chemicals should be avoided.

Hazardous decomposition products:
Thermal decomposition or fire may produce carbon oxides, irritating smoke, and organic decomposition fumes.

Dust hazard:
Fine powder may form dust in air during handling or processing.

Handling and Storage of Benzoin HA501:

Handling:
Benzoin HA501 should be handled using good industrial hygiene and safety practices.

Safe handling:
Avoid breathing dust and avoid direct contact with skin, eyes, and clothing.

Ventilation:
Use adequate ventilation, especially during weighing, mixing, transfer, or powder-coating processing.

Storage:
Store in a cool, dry, shaded, and well-ventilated area.

Storage protection:
Keep the container tightly closed and protect the material from heat, moisture, and ignition sources.

Workplace hygiene:
Wash hands and face thoroughly after handling.

First Aid Measures of Benzoin HA501:

Inhalation:
Move the affected person to fresh air and keep them comfortable for breathing.

Skin contact:
Wash the affected area with soap and plenty of water.

Eye contact:
Rinse cautiously with water for several minutes and remove contact lenses if present and easy to do.

Ingestion:
Rinse mouth with water.

Do not induce vomiting unless instructed by medical personnel.

Medical attention:
Seek medical advice if irritation, coughing, breathing discomfort, or other symptoms continue.

Firefighting Measures of Benzoin HA501:

Suitable extinguishing media:
Use dry chemical powder, carbon dioxide, foam, water spray, or water fog.

Unsuitable extinguishing media:
Do not use a direct high-pressure water jet.

Specific hazards:
Benzoin HA501 is an organic powder, and burning may produce irritating fumes and carbon oxides.

Protective equipment:
Firefighters should wear full protective clothing and self-contained breathing apparatus.

Firefighting precautions:
Avoid dust generation, cool exposed containers if necessary, and prevent contaminated firefighting water from entering drains or waterways.

Accidental Release Measures of Benzoin HA501:

Personal precautions:
Avoid dust formation and avoid breathing dust.

Protective equipment:
Wear suitable gloves, eye protection, protective clothing, and a dust mask if airborne dust may occur.

Environmental precautions:
Prevent large quantities from entering drains, soil, surface water, or groundwater.

Cleaning method:
Sweep or vacuum the spilled powder carefully using dust-control methods.

Disposal:
Place collected material into a suitable closed container and dispose of Benzoin HA501 according to local, regional, and national regulations.

Exposure Controls / Personal Protection of Benzoin HA501:

Engineering controls:
Use adequate general ventilation or local exhaust ventilation when dust may be generated.

Respiratory protection:
Use a dust mask or suitable respirator if ventilation is insufficient.

Eye protection:
Wear safety glasses or chemical safety goggles.

Skin protection:
Wear protective gloves and suitable work clothing.

Hygiene measures:
Wash hands after handling and before eating, drinking, or leaving the work area.

Identifiers of Benzoin HA501:
Linear Formula: C6H5CH(OH)COC6H5
CAS Number: 119-53-9
Molecular Weight: 212.24
UNSPSC Code: 12352115
EC Index Number: 204-331-3
NACRES: NA.22
MDL number: MFCD00004496

Name: 2-hydroxy-1,2-diphenylethanone
CAS Number: 119-53-9
ECHA EINECS - REACH Pre-Reg: 204-331-3
FDA UNII: L7J6A1NE81
Nikkaji Web: J20.621K
Beilstein Number: 0391839
MDL: MFCD00004496
CoE Number: 162
XlogP3: 2.10 (est)
Molecular Weight: 212.24804000
Formula: C14 H12 O2

CAS No.: 9000-05-9
Chemical Name: Benzoin HA501
CBNumber: CB5133413
Molecular Formula: C14H12O2
Molecular Weight: 212.24
MDL Number: MFCD00004496

CAS Number: 119-53-9
Molecular Weight: 212.24
Molecular Formula: C14H12O2

PubChem CID: 8400
SMILES: OC(C(=O)C1=CC=CC=C1)C1=CC=CC=C1

Properties of Benzoin HA501:
Chemical Name: 2-Hydroxy-1,2-diphenylethanol
Molecular Formula: C₁₄H₁₂O₂
Molecular Weight: 212.25 g/mol
Physical Appearance: Crystalline solid varying from white to light yellow
Melting Point: Approximately 137–138 °C
Boiling Point: Around 344 °C (by decomposition)
Solubility:
Good soluble in organic solvents such as alcohol, ether, and chloroform
Slightly soluble in water
Density: ~1.3 g/cm³
Odor: Mild balsamic, aromatic

Appearance: Powder
Physical State: Solid
Storage: Store at room temperature
Melting Point: 134-138° C (lit.)
Boiling Point: 194° C (lit.) at 12 mmHg

vapor pressure: 1.3 hPa ( 136 °C)
Quality Segment: 200
assay: ≥99.0% (GC)
form: crystals
bp: 344 °C/1023 hPa
mp: 132-134 °C
transition temp: flash point 181 °C
solubility: 0.3 g/L
density: 1.31 g/cm3 at 20 °C
bulk density: 350 kg/m3
storage temp.: no temp limit
SMILES string: OC(c2ccccc2)C(=O)c1ccccc1
InChI: 1S/C14H12O2/c15-13(11-7-3-1-4-8-11)14(16)12-9-5-2-6-10-12/h1-10,13,15H
InChI key: ISAOCJYIOMOJEB-UHFFFAOYSA-N

Appearance: pale yellow crystalline monoclinic prisms (est)
Assay: 98.00 to 100.00
Additional Assay Information: racemate
Food Chemicals Codex Listed: No
Melting Point: 137.00 to 138.00 °C. @ 760.00 mm Hg
Melting Point: 132.00 to 137.00 °C. @ 760.00 mm Hg
Boiling Point: 194.00 °C. @ 12.00 mm Hg
Boiling Point: 344.00 °C. @ 760.00 mm Hg
Flash Point: 311.00 °F. TCC ( 154.80 °C. ) (est)
logP (o/w): 2.130

Molecular Weight: 212.24 g/mol
XLogP3: 2.1
Hydrogen Bond Donor Count: 1
Hydrogen Bond Acceptor Count: 2
Rotatable Bond Count: 3
Exact Mass: 212.083729621 Da
Monoisotopic Mass: 212.083729621 Da
Topological Polar Surface Area: 37.3 Ų
Heavy Atom Count: 16
Complexity: 225
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 1
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 1
Compound Is Canonicalized: Yes