ZINC BORATE 3.5 HYDRATE
ZINC BORATE 3.5 HYDRATE
CAS: 12513-27-8
Molecular Formula: B2H8O8Zn
ZINC BORATE 3.5 HYDRATE - Names and Identifiers
| Name | ZINC BORATE 3.5 HYDRATE |
| Synonyms | ZINCBORATEHYDRATE ZINC BORATE 3.5 HYDRATE ZINC BORATE OXIDE 3.5 HYDRATE |
| CAS | 12513-27-8 |
| EINECS | 215-566-6 |
ZINC BORATE 3.5 HYDRATE - Physico-chemical Properties
| Molecular Formula | B2H8O8Zn |
| Molar Mass | 223.07 |
| Density | 4.22 |
| Melting Point | 980℃ [KIR84] |
| Water Solubility | insoluble H2O [KIR84] |
| Solubility Product Constant(Ksp) | pKsp: 10.18 |
| Physical and Chemical Properties | No regular (or diamond-shaped) white or pale yellow powder. Insoluble in water, ethanol, n-butanol, benzene, acetone, soluble in hydrochloric acid, sulfuric acid, dimethyl sulfoxide. Good thermal stability. Easy to disperse. Non-toxic. In addition to the composition of 2ZnO · 3 b2o3chemical book · 3.5H2O zinc salts, there are the composition of 2ZnO · 3B2O3 · 7H2O, ZnO · B2O3 · 2H2O and 3ZnO · 2B2O3 · 5H2O zinc salts, depending on the preparation method. |
| Use | No regular (or diamond-shaped) white or pale yellow powder. Insoluble in water, ethanol, n-butanol, benzene, acetone, soluble in hydrochloric acid, sulfuric acid, dimethyl sulfoxide. Good thermal stability. Easy to disperse. Non-toxic. In addition to the composition of 2ZnO · 3B2O3 · 3.5H2O zinc salts, there are the composition of 2ZnO · 3B2O3 · 7H2O, ZnO · B2O3 · 2H2O and 3ZnO · 2B2O3 · 5H2O, depending on the preparation method. |
ZINC BORATE 3.5 HYDRATE - Synergistic mechanism of zinc Borate in intumescent flame retardant polypropylene
from VIP Journal Professional Edition
Author:
Lin Xiaodan , , Chen Guangqiang , Song Zi-ming
Abstract:
The synergistic flame retardant effect of zinc Borate in intumescent flame retardant polypropylene was studied by oxygen index, thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). The addition of zinc Borate can significantly increase the oxygen index of intumescent flame retardant polypropylene (PP) at low dosage, but when the dosage exceeds a certain value, the oxygen index decreases sharply. TGA showed that the amount of zinc Borate was 2 .5 parts, 5 0 0 ℃ of the residual Coke amount of the maximum value. This is in good agreement with the oxygen index. Scanning electron microscope observation of zinc Borate dosage is 2. At 5 PHR, large bubble pore structure appeared in the Char left from combustion. Such large cells have very thin walls. Therefore, we believe that the flame retardant mechanism of this system is that the glass-like substance formed by the decomposition of ammonium polyphosphate and the decomposition of zinc Borate form an emulsion system covering the combustion surface. The system stabilizes the bubbles generated by the decomposition of ammonium polyphosphate and forms an effective isolation layer to improve the flame retardant performanceKey words:
Zinc Borate intumescent flame retardant polypropylene synergistic effect
DOI:
10.3321/j.issn:1005-5770.2002.02.016
cited:
year:
2002
Last Update：2024-01-02 23:10:35
ZINC BORATE 3.5 HYDRATE - Synergistic Effect of zinc Borate on flame retardancy of LDPE
from hownet
Author:
Abstract:
flame retardant synergist zinc Borate was added into halogen-free and halogen-free flame retardant polyethylene, and its properties were tested, including mechanical properties and flame retardant properties. The results show that zinc Borate has good synergistic effect on halogen-free and halogen-free systems, and the system with zinc Borate is an efficient flame retardant system.
Key words:
Zinc Borate; LDPE; Synergistic effect; flame retardant
DOI:
10.3969/j.issn.1005-3360.2006.01.011
cited:
year:
2006
Last Update：2023-08-16 22:05:47
ZINC BORATE 3.5 HYDRATE - Properties, production and flame retardant application of zinc Borate
from VIP Journal Professional Edition
Author:
Abstract:
The properties, production process, flame retardant and smoke suppression of zinc Borate were introduced.
Key words:
Zinc Borate properties production flame retardant apply
DOI:
10.3969/j.issn.1671-5381.2002.04.011
cited:
year:
2002
Last Update：2023-08-16 22:05:47
ZINC BORATE 3.5 HYDRATE - Preparation Method of ultrafine zinc Borate flame retardant
from Palm Bridge research
Application (patent) number:
CN97109105.6
applicant (patent):
Wuhan University
inventor:
yuan Liangjie , Fang Youling , Huang Ling , He Zhike , Zhao Wenkuan
cited:
Abstract:
The invention discloses a new method for preparing ultrafine zinc Borate flame retardant. The method is based on zinc oxide and boric acid as the main raw materials, by controlling the appropriate reaction temperature, material ratio, solid-liquid ratio, reaction time, surfactant dosage and other conditions, preparation of ultrafine zinc Borate flame retardant with different particle size, its chemical...
Last Update：2023-08-16 22:05:47
ZINC BORATE 3.5 HYDRATE - Reference Information
| use | flame retardant for various engineering plastics, rubber products, coatings, textiles, etc. It is also used in medicine, waterproof fabric, ceramic glaze, coating anti-mold agent, sterilization anti-mold agent, fungicide, etc. |
| production method | zinc oxide method puts a certain ratio of zinc oxide and boric acid into a crystallizer containing a certain concentration of boric acid medium solution, reacts at 80~100 ℃ for 5~7h, then filters and washes, and the filter cake is dried and crushed to obtain a finished zinc borate product. Its 2ZnO 6H3BO3 → 2ZnO · 3B2O3 · 3.5 H2O 5.5H2O zinc hydroxide method adds zinc hydroxide and boric acid to the reactor in the presence of water and other organic solvents, and keeps the temperature at 100 ℃ for 6~10 hours. The feed liquid is filtered, and the obtained solid is washed with hot water and dried to obtain a finished zinc borate product. Its 2Zn(OH)2 6H3B03 → 2ZnO · 3B2O3 · 3.5 H2O 7.5H2O borax method uses zinc sulfate, borax and zinc oxide to react at a molar ratio of 7:7:1 at 95 ℃ to prepare zinc borate. Its 3.5Na2B4O7 3.5ZnSO4 0.5ZnO → 2(2 Zn0.3B2O3 3.5H2O) 3.5Na2SO4 2H3BO3 |
Last Update：2024-04-09 21:04:16
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