結(jié)構(gòu)式
CAS: 1948-33-0
分子式: C10H14O2
分子量: 166
中文名稱: T-丁基-1,4-苯酚
叔丁基對(duì)苯二酚
特丁基對(duì)苯二酚
叔丁基氫醌
2-特丁基對(duì)苯二酚
英文名稱: 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
產(chǎn)品特性：白色或微紅褐色結(jié)晶粉末，有一種極淡的特殊香味，幾乎不溶于水（約為 5‰ ）， 叔丁基對(duì)苯二酚溶于乙醇、乙酸、乙酯、乙醚及植物油等。沸點(diǎn) 295℃ ，熔點(diǎn) 126.5~128.5℃ 。
叔丁基對(duì)苯二酚對(duì)大多數(shù)油脂、塑料、橡膠等均有防止氧化作用。遇鐵、銅不變色，但如有堿存在可轉(zhuǎn)為粉紅色。 抗氧化性能優(yōu)越。
技術(shù)指標(biāo)：
項(xiàng)目 指 標(biāo)
TBHQ含量(以C10H14O2計(jì))%，≥ 99.0
特丁基對(duì)苯醌%，≤ 0.2
氫 醌%，≤ 0.1
2,5 -二特丁基氫醌%，≤ 0.2
甲苯%，≤ 0.0025
熔點(diǎn)℃ 126.5-128.5
砷鹽mg/kg, ≤ 3
重金屬mg/kg, ≤ 10
紫外線吸收 合格
使用范圍：
1 、 可作為抗氧化劑：在濃度 0.01% 至 1.0% 的情況下，對(duì)不穩(wěn)定的有機(jī)液體（如氯代烴、油類、醚及醛類）是一種非常有效的抗氧化劑。在某種情況下， TBHQ 的效力強(qiáng)過(guò)氫醌。
2 、 TBHQ 對(duì)于不飽和聚酯以及其它可聚合有機(jī)物的貯存過(guò)程是一種非常有效的阻聚劑。研究表明：在正常貯存條件下， TBHQ 的阻聚作用是非常有效的 .
3 、 可作為穩(wěn)定劑：在濃度 0.5% 的條件下， TBHQ 對(duì)由聚酯生產(chǎn)的壓敏粘合劑而言是一種良好的光熱穩(wěn)定劑。據(jù)有關(guān)報(bào)道， MTBHQ 作為穩(wěn)定劑，其 應(yīng)用優(yōu)于其它同類產(chǎn)品。
注意事項(xiàng)：
1 ．避免在強(qiáng)堿條件下使用，以免導(dǎo)致產(chǎn)品變色；
2 ．使用時(shí)確保抗氧化劑的全部均勻分布于物料中。
貯存及運(yùn)輸： 本品應(yīng)貯存在陰暗、干燥的庫(kù)房 避光保存。 運(yùn)輸時(shí)小心輕放，防止受潮、受熱。不得與有腐蝕、有害物質(zhì)共貯共運(yùn)。
包裝規(guī)格： 20千克纖維桶內(nèi)襯聚乙烯袋裝。
保 存 期： 18 個(gè)月。
其它信息：
Product Identification
【Product Name】Butylhydroquinone；叔丁基對(duì)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
