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UV Absorber, UV531, CAS No. 1843-05-6

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  Post Date: Jun 16,2020
  Expiry Date: Jun 16,2021
  Detailed Description: Cas No. :1843-05-6 Quantity: 10000Kilograms
Payment Method: T/T


Benzophenone UV Absorber UV-531

Other names: UV stabilizer BP-12; Chimassorb 81; UV531; UV 531;UV absorbent 531; Ultraviolet light absorber UVA 531; Benzotriazole UV absorber 531
Chemical name : 2-Hydroxy-4-n-octoxybenzophenone

Introduction : UV- 531 is an ultraviolet light absorber (UVA) of the benzophenone class, imparting good light stability for plastics and other organic polymers. Due to its highly effective broad UV absorption properties and excellent polymer compatibility, UV- 531 offers maximum polymer protection and low color contribution, retards yellowing and loss of physical properties.

CAS NO : 1843-05-6

Empirical Formula : C21H26O3


Physical Properties
Molecular Weight : 326
Appearance : light yellow powder or flakes
Melting Range : 47-49 °C
Assay : 99% Min.
Volatile Matter : < 0.5% Max.
Specific Gravity(20 °C) : 1.16g/cm3

Solubility At 20 ºC (g/100ml solvent)
Solvent Solubility
Acetone 43%
Benzene 72%
Chloroform 61%
Ethanol 3.5%
Ethyl Acetate 44%
n-Hexane 12%
Methanol 1.7%
MEK 65%
Methylene Chloride 67%
Toluene >50%
Water <0.01%
UV Absorption

Absorption Spectrum (10mg/l, Chloroform)

Applications
1.Polypropylene : 0.2-0.5wt% based on polymer weight
2.PVC:
Rigid PVC : 0.5wt% based on polymer weight
Plasticized PVC : 0.5-2 wt% based on polymer weight
3.Polyethylene : 0.2-0.5wt% based on polymer weight

Toxicity & Safety
This material is not intended for use in products for which prolonged contact with mucous membranes or abraded skin, or implantation within the human body is specially intended, unless the finished product has been tested in accordance with the Food and Drug Administration and/or other applicable safety testing requirements.
Storage
The product may be stored up to two years in a sealed container. Containers should be stored in a cool, dry area. Extended storage at elevated temperatures or exposure to direct heat or sunlight could reduce product life. Keep containers sealed when no in use.

Handling
In accordance with good industrial practice, handle with care and avoid unnecessary personal contact. Protect skin. Prevent contamination of the environment. Avoid dust formation and ignition sources.

Packaging & Shipping
20kg carton box







Uses: It is one kind of high molecular Light stabilizer, with multiple functional groups .It can be
used in low density PE film, PP tape, EVA film, ABS, PP fiber PE, polyacetals ,polyamides,
polyurethanes, PVC, PVC blending material, polystyrene, rubber and viscose, It can work with
UV adsorbent because its special structure and large molecular weight(3000).It also can be
used in film and fiber, also can be used as antioxidant and heat stabilizer of polymer. The dosage
of agricultural film is 0.2%
Cautions: S or halogen may offer bad effects, or some stabilizer, insecticide and fire retardant
may react with 944, Please test before use.
Packing: in 25kg net carton, or as customer's request
Storage: Store in dry places under 30ºC, avoiding heat and moisture

Zhiyi Specialty Chemicals Co.,Ltd. Has been dealing in the antixidants, UV-absorbers since May, 2001 and set up its own antioxidants manufacturing base in Nanxiong, Guangdong in May,2006. At present, the products are sold to the fields of high polymers, resins and rubbers as well as other fields in need of there special product performances. Zhiyi has been playing the leading role in the technology of the antioxidants and light stabilizers of high performance. Nowadays, we will keep the leading position by supplying all-around solutions so as to meet the technical demands of the increasing and changing polymer additive market in the world.
The antioxidants that are made by Zhiyi Specialty Chemicals Co.,Ltd. Can be widely used in every industry such as the production and synthesis of the polymers. All of the products of Zhiyi have their own special characteristics in every applying field. Zhiyi persists to unchangeable criterion of product quality, which assures the products to have better stability during the usage and make them have excellent quality.
Guangzhou Zhiyi Chemical Co.,Ltd. Has been dedicated to the research and development of the special phosphite antioxidants. In recent years, with the more stringent green environmental protection requirements by the global consumers, a new generation of "phenol-free phosphite " of Zhiyi not only has a better antioxidative properties, but also remedies an environmental defect of the traditional phosphite antioxidants that the residual free phenol exists. Our technical team tackles key problems, upgrading the additives. We promise to develop the products with higher performance, more environmental protection and better market benefits for our customer, becoming the global pioneer and leader in the field of "phenol-free phosphite antioxidants".

  CAS Registry Number:

1843-05-6
  Synonyms: ;Octabenzone;2-Hydroxy-4-Octyloxy Benzophenone;BP-12;UV-531;2-Hydroxy-4-n-octoxy Benzophenone;UV Abosorber 531;Ultraviolet absorbent UV-531;UV 531;Benzophenone-12;Ultraviolet light absorber UV-531;UV-12;FENTASORB 531;2-hydroxy-4-octoxybenzophenone;2-Hydroxy-4-(Octyloxyl)-Benzophenone;UV Absorber 531;
  Molecular Formula: C21H26O3
  Molecular Weight: 326.4293
  Molecular Structure: 1843-05-6 2-hydroxy-4-(octyloxy)benzophenone
  Hazard Symbols:  Xi:Irritant;
  Risk Codes: R36/37/38:;
  Safety Description: S26:;
S36:;

  Company: Zhiyi Specialty Chemicals Co.,Ltd.     [ China ]        
  Contact: Jason Liu
  Tel: +86-0751-6925089
  Fax:
  Email: 229543890@qq.com
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