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Octabenzone

Characterization Description Applications Physical properties Uses Features/benefits Analytic Laboratory Methods Guidelines for use Handling & Safety References

Octabenzone

CAS No.1843-05-6
Chemical Name:Octabenzone
CBNumber:CB0441308
Molecular Formula:C21H26O3
Formula Weight:326.43
MOL File:1843-05-6.mol

Octabenzone Property

Melting point 47-49 °C(lit.)
Boiling point 424.46°C (rough estimate)
Density 1.160g/cm3
refractive index 1.6000 (estimate)
Flash point 102℃
storage temp. Sealed in dry,Room Temperature
solubility Chloroform (Slightly), Methanol (Slightly, Sonicated)
form Solid
pka 7.59±0.35(Predicted)
color Off-White to Light Yellow
Specific Gravity 1.160
Merck 14,6742
BRN 1915198
InChIKey QUAMTGJKVDWJEQ-UHFFFAOYSA-N
LogP 7.360 (est)
CAS DataBase Reference 1843-05-6(CAS DataBase Reference)
Indirect Additives used in Food Contact Substances 2-HYDROXY-4-N-OCTOXY-BENZOPHENONE
FDA 21 CFR 178.2010
EWG's Food Scores 2
FDA UNII 73P3618V2E
NIST Chemistry Reference Octabenzone(1843-05-6)
EPA Substance Registry System 2-Hydroxy-4-octyloxybenzophenone (1843-05-6)
UNSPSC Code 41116107
NACRES NA.24

Safety

Hazard Codes :Xi,N
Risk Statements :36/37/38-50/53-43
Safety Statements :26-36-61-60-36/37
RIDADR :UN 3077 9/PG 3
WGK Germany :1
RTECS :DJ1595000
TSCA :Yes
HS Code :29145090
Hazardous Substances Data :1843-05-6(Hazardous Substances Data)
Toxicity :LD50 oral in rat: > 10gm/kg

NFPA 704:

	0
0		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordWarning
Hazard statements H317
Precautionary statements P280

Octabenzone Price More Price(5)

Brand: Sigma-Aldrich(India)
Product number: 413151
Product name : 2-Hydroxy-4-(octyloxy)benzophenone
Purity: 98%
Packaging: 100G
Price: ₹5185.18
Updated: 2022/06/14
Buy: Buy

Brand: TCI Chemicals (India)
Product number: H0288
Product name : 2-Hydroxy-4-n-octyloxybenzophenone
Purity: min. 98.0 %
Packaging: 25G
Price: ₹1800
Updated: 2022/05/26
Buy: Buy

Brand: ALFA India
Product number: ALF-L11750-22
Product name : 2-Hydroxy-4-n-octyloxybenzophenone, 99%
Purity:
Packaging: 100g
Price: ₹3385
Updated: 2022/05/26
Buy: Buy

Brand: TCI Chemicals (India)
Product number: H0288
Product name : 2-Hydroxy-4-n-octyloxybenzophenone
Purity: min. 98.0 %
Packaging: 500G
Price: ₹9300
Updated: 2022/05/26
Buy: Buy

Brand: ALFA India
Product number: ALF-L11750-14
Product name : 2-Hydroxy-4-n-octyloxybenzophenone, 99%
Purity:
Packaging: 25g
Price: ₹1088
Updated: 2022/05/26
Buy: Buy

Octabenzone Chemical Properties,Usage,Production

Characterization UV Absorber 531 is an ultraviolet light absorber (UVA) of the benzophenone class, imparting good light stability when used in combination with a hindered amine light stabilizer (HALS) of the Chimassorb, Tinuvin® or Uvinul® range. It shows good compatibility with polyolefins and plasticized PVC.
Description Octabenzone(1843-05-6) is a UV absorber/screener. It is used to protect polymers (e.g., polyethylene, polypropylene, polyvinylchloride) against damage by UV light. Colorless crystals; Light yellow powder.
Stable under recommended storage conditions.
Applications The main application of UV Absorber 531 is in combination with a HALS the
light stabilization of low density and linear low density polyethylene as well
as ethylene-vinyl acetate copolymers for agricultural films. It can be used as
well as a UV barrier to protect the contents of packages for both industrial
and consumer applications. Also, in combination with HALS, UV Absorber 531
can be used in high density polyethylene molded articles, e. g. in crates.
UV Absorber 531 also protects a number of other polymers against degradation
caused by light exposure such as plasticized PVC and rubbers.
UV Absorber 531 can be used in combination with antioxidants, phosphites
and other light stabilizers.
Physical properties
Uses Adsorbents and absorbents;
Paint additives and coating additives not described by other categories
Processing aids, not otherwise listed
Air Care Products
Building/Construction Materials not covered elsewhere
Fabric, Textile, and Leather Products not covered elsewhere
Furniture and Furnishings not covered elsewhere
Paints and Coatings
Plastic and Rubber Products not covered elsewhere
Features/benefits UV Absorber 531 is particularly suitable for thick films, typically > 100 μm and thick sections. The low vapor pressure of UV Absorber 531 prevents losses during processing. Low migration rates reduce the risk of blooming.
Analytic Laboratory Methods Migration of photo stabilizers from plastics was studied in model elution expt where the plastics were placed at different temp 20 and 45 degree in different solvents, e.g. H2O, acetic acid, sunflower oil, heptane, and the amt of photostabilizer eluted was determined by spectrophotometry and by gas chromatography. The elution of 2-hydroxy-4-n-octyloxybenzophenone depended on the type of plastic. Elution was low in polystyrene and high in polyolefins, polyethylene. Food contamination from these plastic additives is discussed.
Guidelines for use
Handling & Safety In accordance with good industrial practice, handle with care and avoid
unnecessary personal contact. Avoid continuous or repetitive breathing of
dust. Use only with adequate ventilation. Protect skin. Avoid dust formation
and ignition sources.
For more detailed information please refer to the material safety data sheet.
References 1. https://pubchem.ncbi.nlm.nih.gov/compound/Octabenzone#section=U-S-Exports
2. https://en.wikipedia.org/wiki/Octabenzone
Description Octabenzone appears as light yellow/yellowish crystals/fine powder and is odourless and freely soluble in benzene, n-hexane, and acetone; slightly soluble in ethanol; and very slightly soluble in ethane dichloride. Octabenzone is a light stabiliser with good performance, capable of absorbing the UV radiation of 240–340 nm wavelength with the characteristics of light colour, non-toxicity, good compatibility, small mobility, easy processing, etc. Octabenzone protects the polymer to its maximum extent and helps to reduce its colour. It can also delay the yellowing and impede the loss of its physical function. Industrial applications of octabenzone is very extensive and applied to PE, PVC, PP, PS, PC, organic glass, polypropylene fibre, ethylene-vinyl acetate, etc. Also, octabenzone has very good light-stability effect on drying phenol aldehyde, varnish of alcohol and acname, polyurethane, acrylate, expoxnamee, etc. The major uses include UV stabiliser, for example, polyethylene and polypropylene fibres.
Chemical Properties Light yellow powder
Uses HOBPs are UV absorbers for insulating plastics, which can be incorporated with active layers to increase the stabilization of organic solar cells (OSCs). It may be incorporated in parylene C films to enhance the light stability, which can be potentially used as a moisture transfer membrane for electronic boards and photovoltaics.
Uses To stabilize polyethylene against deterioration by ultraviolet light.
Preparation Preparation by reaction of n-octyl chloride with 2,4-di-hydroxybenzophenone,
in the presence of a mixture of sodium carbonate, triethylamine and potassium iodide in refluxing butanol for 15 h (90%);
in the presence of potassium carbonate in cyclohexanone at 145° for 5 h (66%);
in the presence of potassium hydroxide and antimony triiodide in diethylene glycol at 150° for 1 h (93%);
in the presence of sodium bicarbonate and potassium iodide in 1-methylpyrrolidone for 2 h at 150° (96%).
Definition ChEBI: Octabenzone is a member of benzophenones.
General Description 2-Hydroxy-4-(octyloxy)benzophenone (HOBP) is a UV based absorber that has 2-hydroxybenzophenone as a functional group. It can be used to enhance the light fastness of polymers using UV absorbers with sulfur and phosphorus compounds.
Flammability and Explosibility Not classified