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名称:叔丁基对苯二酚
 

纯度:98%  包装:25kg/纸桶

结构式
   

CAS:  1948-33-0
分子式:  C10H14O2
分子量:  166

中文名称:  T-丁基-1,4-苯酚
                 叔丁基对苯二酚
                 特丁基对苯二酚
                 叔丁基氢醌
                 2-特丁基对苯
二酚 

英文名称:  tert-butyl-hydroquinon
                1-dimethylethyl)-4-benzenediol
                2-(1,1-
dimethylethyl)-4-benzenediol
                2-(1,1-dimethylethyl)-1,4-benzenediol
                2-tert-butyl-
1,4-benzenediol
                2-tert-butylhydroquinone

产品特性:白色或微红褐色结晶粉末,有一种极淡的特殊香味,几乎不溶于水(约为 5‰ ), 叔丁基对苯二酚溶于乙醇、乙酸、乙酯、乙醚及植物油等。沸点 295℃ ,熔点 126.5~128.5℃ 。

  叔丁基对苯二酚对大多数油脂、塑料、橡胶等均有防止氧化作用。遇铁、铜不变色,但如有碱存在可转为粉红色。 抗氧化性能优越。

技术指标:
项目                                                            指 标 
TBHQ含量(以C10H14O2计)%,≥          99.0 
 特丁基对苯醌%,≤                             0.2 
 氢 醌%,≤                                           0.1 
2,5 -二特丁基氢醌%,≤                         0.2 
 甲苯%,≤                                             0.0025 
 熔点℃                                                    126.5-128.5 
 砷盐mg/kg, ≤                                         3 
 重金属mg/kg, ≤                                     10 
紫外线吸收                                                合格 

使用范围:
1 、 可作为抗氧化剂:在浓度 0.01% 至 1.0% 的情况下,对不稳定的有机液体(如氯代烃、油类、醚及醛类)是一种非常有效的抗氧化剂。在某种情况下, TBHQ 的效力强过氢醌。
2 、 TBHQ 对于不饱和聚酯以及其它可聚合有机物的贮存过程是一种非常有效的阻聚剂。研究表明:在正常贮存条件下, TBHQ 的阻聚作用是非常有效的 .
3 、 可作为稳定剂:在浓度 0.5% 的条件下, TBHQ 对由聚酯生产的压敏粘合剂而言是一种良好的光热稳定剂。据有关报道, MTBHQ 作为稳定剂,其 应用优于其它同类产品。

注意事项:
1 .避免在强碱条件下使用,以免导致产品变色;
2 .使用时确保抗氧化剂的全部均匀分布于物料中。

贮存及运输: 本品应贮存在阴暗、干燥的库房 避光保存。 运输时小心轻放,防止受潮、受热。不得与有腐蚀、有害物质共贮共运。

包装规格: 20千克纤维桶内衬聚乙烯袋装。
保 存 期: 18 个月。

其它信息:

Product Identification
【Product Name】Butylhydroquinone;叔丁基对苯二酚
【Synonyms】2-tert-Butyl-1,4-benzenediol
【CAS】1948-33-0
【Formula】C10H14O2
【Molecular Weight】166.22
【EINECS】217-752-2
【RTECS】MX4375000
【RTECS Class】Tumorigen; Mutagen; Reproductive Effector
【Beilstein/Gmelin】637923
【Beilstein Reference】4-06-00-06013
【EC Class】harmful

Physical and Chemical Properties
【Appearance】White to light tan crystalline powder or a fine beige powder. Very slight aromatic odor.
【Solubility in water】Insoluble
【Melting Point】128℃
【Boiling Point】273℃
【Vapor Pressure】0.0011 (25℃)
【Density】1.05 g/cm3 (20℃)
【pKa/pKb】10.78 (pKa)
【Partition Coefficient】2.33
【Heat Of Vaporization】55.2 kJ/mol
【Usage】Antioxidant in fats and oils.

First Aid Measures
【Ingestion】Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
【Inhalation】Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
【Skin】Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
【Eyes】Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage
【Storage】Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
【Handling】Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification
【Inhalation】May cause respiratory tract irritation.
【Skin】May cause skin irritation.
【Eyes】May cause eye irritation.
【Ingestion】May cause irritation of the digestive tract. May be harmful if swallowed.
【EC Risk Phrase】R 20/21/22 36/37/38
【EC Safety Phrase】S 26 36/37/39
【UN (DOT)】1325

Exposure Controls/Personal Protection
【Personal Protection】Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
【Exposure Effects】Dizziness, headache and delirium have been reported with hydroquinone exposure. Quinone has cause paralysis of the medullary centers and coma. Both quinone and hydroquinone may cause seizures. In rat studies, maternal toxic effects from exposure to hydroquinone included changes in the ovaries, fallopian tubes, and menstrual cycle. Post-implantation mortality was also observed in rat studies.
Observed paternal toxic effects from exposure to hydroquinone included changes in the testes, epididymis, sperm duct, prostate, seminal vesicle, Cowper's gland, accessory glands, and male fertility index.
Exposure to hydroquinone produced skeletal malformations in chickens and ocular and skeletal malformations in rabbits.
【Poison Class】3

Fire Fighting Measures
【Flash Point】139℃
【Autoignition】457℃
【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Runoff from fire control or dilution water may cause pollution. Extinguishing media: Use water spray to cool fire-exposed containers. Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
【Fire Potential】This chemical is combustible.

Accidental Release Measures
【Small spills/leaks】Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity
【Incompatibilities】Oxidizing agents, strong bases.
【Stability】Stable under normal temperatures and pressures.
【Decomposition】Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
【Combustion Products】Fire may produce irritating and/or toxic gases.

Transport Information
【UN Number】1325
【Hazard Class】4.1
【Packing Group】II; III
【HS Code】2907 29 00



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