peroxypivalate
tert-Butyl peroxypivalate
CAS: 927-07-1
Molecular Formula: C9H18O3
peroxypivalate - Names and Identifiers
peroxypivalate - Physico-chemical Properties
| Molecular Formula | C9H18O3 |
| Molar Mass | 174.24 |
| Density | 0.854 |
| Melting Point | -17°C |
| Boling Point | 245.22°C (rough estimate) |
| Flash Point | 68~71℃ |
| Water Solubility | insoluble |
| Vapor Presure | 4.02hPa at 38℃ |
| Refractive Index | 1.410 |
| Physical and Chemical Properties | Colorless liquid, with the odour of esters. Insoluble in water and ethylene glycol, soluble in most organic solvents. |
| Use | Used as an initiator for polyethylene, polyvinyl chloride, etc., is a high efficiency low temperature initiator |
peroxypivalate - Risk and Safety
| UN IDs | UN 2110 |
| Hazard Class | 5.2 |
| Packing Group | II |
peroxypivalate - Analysis of tert-butyl peroxypivalate by gas chromatography
from VIP
Author:
Xue Yong-Jiang , Ai Liang , Yu Xueyan , wei tao
Abstract:
tert-butyl peroxypivalate was studied by gas chromatography, and some other peroxides were further studied. These thermolabile peroxides cannot be analyzed at high temperatures. At low temperatures, satisfactory chromatograms are not readily available because of the low vapor pressure. Therefore, the use of gas chromatography analysis must strictly control the relevant temperature. It is concluded that using PEG6000,DNP and Silicone SE-30 as the stationary phase, the carrier gas flow rate is set to 10 ~ 100mL/min, which has no effect on the decomposition of peroxide. Analysis conditions of tert-butyl peroxypivalate: Silicon SE-30 (stationary liquid),80 ℃ (Column temperature),10ml/min (carrier gas flow rate), naphthalene pentane (internal standard). The standard deviation was 0.84% and the recovery rate was 99.49%. Some peroxides that decompose immediately after evaporation cannot be detected by this method.
Key words:
DOI:
10.3969/j.issn.1671-0460.2006.04.020
cited:
year:
2006
Last Update：2024-01-02 23:10:35
peroxypivalate - Plant stain removal agent for clothing
from Palm Bridge research
Application (patent) number:
CN201310590799.X
application date:
2013-11-22
Public/Announcement Number:
CN103666829B
Public/announcement date:
2015.07.08
applicant (patent):
Wan Xiaoyi
inventor:
National and provincial code:
CN330382
Abstract:
The present invention relates to a plant stain removal agent for clothing, which comprises the following components in parts by mass: 0.64 to 1.12 parts of polyacrylamide, 0.2 to 0.34 parts of methyl methacrylate, and 0.6 to 1.1 parts of polyvinylpyrrolidone, lauryl dimethyl amine oxide 0.12-0.36 parts, N-octanoyl caprolactam 15-35 parts, tert-butyl peroxypivalate 0.005-0.01 parts, decityl trimethyl ammonium chloride 2.5-6 parts, palmitic acid 0.05-0.15 parts, 25-40 parts of water. The invention provides a plant stain removal agent for clothes, which has a good removal effect on tea stains, wine stains and plant chlorophyll stains on clothes, and the treated clothes are as smooth as new.
Last Update：2023-08-16 22:08:29
peroxypivalate - Reference Information
| LogP | 3.17 at 25℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | used as an initiator for polyethylene, polyvinyl chloride, etc., is a high-efficiency low-temperature initiator used as a vinyl chloride monomer The initiator of suspension polymerization can also be used as an initiator for radical polymerization of other monomers. |
| Production method | Formic acid and isobutanol react under the catalysis of sulfuric acid to form tert-valeric acid, and then react with phosphorus trichloride to form tert-valeryl chloride. The latter reacts with tert-butyl hydrogen peroxide at 20°C to form tert-butyl peroxide. Among them, tert-butyl hydrogen peroxide is produced by the reaction of hydrogen peroxide and tert-butyl alcohol. Raw material consumption (kg/t) formic acid 1000 isobutyric acid 1250 tert-butanol 1400 hydrogen peroxide 9570 phosphorus trichloride 820 |
| category | oxidant |
| toxicity classification | poisoning |
| acute toxicity | oral-rat LD50:4300 mg/kg |
| explosive hazard characteristics | explosive decomposition when heated |
| flammability hazard characteristics | flammable when mixed with reducing agent, ammonium, organic matter, acid and combustible materials; Thermal decomposition is spicy and stimulates smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; Store separately from organic matter, reducing matter, combustible matter and strong acid |
| fire extinguishing agent | water, dry powder, carbon dioxide, foam |
Last Update：2024-04-10 22:29:15
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