dme是什么溶剂?
乙二醇二甲醚(DME)是一种带有醚味的水白色中性液体,性质稳定,不易发生反应,能溶解各种树脂和纤维素,并能与水和许多醇,酮,酯等有机溶剂以任意比例混溶。
乙二醇二甲醚,是一种有机物,分子式为C4H10O2,分子量为90.12,无色透明液体。熔点-58℃(-71℃),沸点84℃,相对密度0.8665(20/4℃),折光率1.3796,闪点0℃。能与水、醇混溶,溶于烃类溶剂。有强烈醚样气味。
主要用于聚合物化学、电化学、硼化学工艺领域,还用作树脂、硝化纤维素等的溶剂以及医药抽提剂、有机合成中间体。
急救措施:
皮肤接触:脱去污染的衣着,用肥皂水和清水彻底冲洗皮肤。
眼睛接触:提起眼睑,用流动清水或生理盐水冲洗。就医。
吸入:迅速脱离现场至空气新鲜处。保持呼吸道通畅。如呼吸困难,给输氧。如呼吸停止,立即进行人工呼吸。就医。
食入:饮足量温水,催吐。就医。
消防措施:
易燃,遇明火、高热易引起燃烧爆炸。与氧化剂能发生强烈反应。接触空气或在光照条件下可生成具有潜在爆炸危险性的过氧化物。其蒸气比空气重,能在较低处扩散到相当远的地方,遇火源会着火回燃。
尽可能将容器从火场移至空旷处。喷水保持火场容器冷却,直至灭火结束。处在火场中的容器若已变色或从安全泄压装置中产生声音,必须马上撤离。灭火剂:抗溶性泡沫、干粉、二氧化碳、砂土。
: 二乙二醇二甲醚的英文学名为Diglyme,在CAS(国际化学文摘杂志)中编号为111-96-6,它的常见分子式是(CH3OCH2CH2)2O,分子量为134.17,常见熔点为mp -68°C,常见沸点为bp760 162°C,常见密度为d2020 0.0009451 g/cm3,这是一种由C 53.71%, H 10.52%, O 35.77%构成的化合物。
用作感光化学品等,用于GB18582001内墙装饰用乳胶漆检测,属于VOC气相检测用。
用作感光化学品等3、用于GB18582001内墙装饰用乳胶漆检测,属于VOC气相检测用。
油漆生产的主要职业危害是吸入有机溶剂蒸气,这使得患再生障碍性贫血、白血病、结核、胸膜炎等严重疾病的比例相当高。超过10年工龄的油漆工大多数都有咳嗽、易疲劳、头疼、胸闷、四肢无力的症状。
重金属指密度大于4.5克/立方厘米的金属,如铅、镉、铬、汞等。油漆中一部分树脂、颜料或催干剂中会有可溶性重金属的存在,如果长期接触含有铅等重金属,可引发轻度神经衰弱综合症和消化不良症状,较重者则出现贫血及铅麻痹。
扩展资料:
分类
中国的国家标准GB2705-92,采用以涂料中的成膜物质为基础的分类方法。涂料通常由基料(树脂、粘接剂)、颜料、填料、溶剂和少量功能性添加剂等组成,按基料种类可分为17大类。
按性能特点可分为有机涂料、无机涂料、溶剂型涂料、无溶剂型涂料、水性涂料、粉末涂料、高固体份涂料和厚浆型涂料等;按其功能特点又可分为磁漆、色漆、清漆、调和漆、底漆、面漆和中间漆等;成品有模板漆,内外墙乳胶漆,防火乳胶漆等。
参考资料:百度百科-油漆
侵入途径:吸入、食入、经皮吸收。
健康危害:口服引起恶心、呕吐、腹绞痛、虚弱、昏迷。具有刺激性。
刺激性:家兔经眼:50mg,中度刺激。家兔经皮开放性刺激试验:500mg,轻度刺激。 危险特性:易燃,遇明火、高热易引起燃烧爆炸。与氧化剂能发生强烈反应。接触空气或在光照条件下可生成具有潜在爆炸危险性的过氧化物。其蒸气比空气重,能在较低处扩散到相当远的地方,遇明火会引着回燃。
燃烧(分解)产物:一氧化碳、二氧化碳。
聚乙二醇二甲醚(nhd)
nhd溶剂主要物理化学性质如下:(25℃时)
分子式:ch3o[ch2ch2o]nch3(n=2-8)
分子量:m=250-280
氯化物含量:<4ppm,分子量:250-270
密度:1.027kg/m3
燃点:157℃
冰点:-22--29℃
表面张力:0.034n/m
比热:2100j
根据不同的原料,聚乙二醇二甲醚的合成有着多种工艺路线,概括起来主要有醇钠法(又叫单醚法),相转移催化法
编号 毒性类型 测试方法 测试对象 使用剂量 毒性作用 1 acute Oral Human 3380 mg/kg 1.胃肠道毒性Gastrointestinal - gastritis2.肝毒性Liver - other changes3.肾、输尿管和膀胱毒性Kidney, Ureter, Bladder -other changes 2 acute Inhalation Human 25 ppm 1.行为毒性Behavioral - tremor2.行为毒性Behavioral - convulsions or effect on seizure threshold3.行为毒性Behavioral - changes in motor activity (specific assay) 3 acute Oral Rodent - rat 2370 mg/kg 1.行为毒性Behavioral - altered sleep time (including change in righting reflex)2.肺部、胸部或者呼吸毒性Lungs, Thorax, or Respiration -other changes 4 acute Inhalation Rodent - rat 1500 ppm/7H 1.Details of toxic effects not reported other than lethal dose value 5 acute Intraperitoneal Rodent - rat 2500 mg/kg 1.Details of toxic effects not reported other than lethal dose value 6 acute Intravenous Rodent - rat 2068 mg/kg 1.血液毒性Blood - other hemolysis with or without anemia 7 acute Oral Rodent - mouse 2560 mg/kg 1.行为毒性Behavioral - somnolence (general depressed activity)2.行为毒性Behavioral - changes in motor activity (specific assay)3.心脏毒性Cardiac - other changes 8 acute Inhalation Rodent - mouse 1480 ppm/7H 1.行为毒性Behavioral - analgesia2.肺部、胸部或者呼吸毒性Lungs, Thorax, or Respiration -dyspnea3.肾、输尿管和膀胱毒性Kidney, Ureter, Bladder -hematuria 9 acute Intraperitoneal Rodent - mouse 2147 mg/kg 1.肾、输尿管和膀胱毒性Kidney, Ureter, Bladder -changes in both tubules and glomeruli2.血液毒性Blood - changes in spleen3.血液毒性Blood - other changes 10 acute Oral Rodent - rabbit 890 mg/kg 1.行为毒性Behavioral - general anesthetic2.血液毒性Blood - other hemolysis with or without anemia 11 acute Administration onto the skin Rodent - rabbit 1280 mg/kg 1.Details of toxic effects not reported other than lethal dose value 12 acute Oral Rodent - guinea pig 950 mg/kg 1.行为毒性Behavioral - general anesthetic2.胃肠道毒性Gastrointestinal - other changes3.肾、输尿管和膀胱毒性Kidney, Ureter, Bladder -other changes 13 MutipleDose Inhalation Rodent - rat 400 ppm/6H/2W-I 1.大脑毒性Brain and Coverings - other degenerative changes2.营养和代谢系统毒性Nutritional and Gross Metabolic - weight loss or decreased weight gain3.生化毒性Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - multiple enzyme effects 14 MutipleDose Oral Rodent - rat 10206 mg/kg/21D-C 1.内分泌毒性Endocrine - changes in thymus weight2.营养和代谢系统毒性Nutritional and Gross Metabolic - weight loss or decreased weight gain3.慢性病相关毒性Related to Chronic Data - changes in testicular weight 15 MutipleDose Oral Rodent - rat 500 mg/kg/10D-I 1.内分泌毒性Endocrine - changes in thymus weight2.免疫系统毒性Immunological Including Allergic - decreased immune response 16 MutipleDose Inhalation Rodent - rat 300 ppm/6H/13W-I 1.血液毒性Blood - changes in leukocyte (WBC) count2.营养和代谢系统毒性Nutritional and Gross Metabolic - weight loss or decreased weight gain3.慢性病相关毒性Related to Chronic Data - changes in testicular weight 17 MutipleDose Inhalation Rodent - rat 970 mg/m3/7H/5W-I 1.血液毒性Blood - changes in bone marrow (not otherwise specified)2.血液毒性Blood - changes in spleen 18 MutipleDose Inhalation Rodent - rat 1000 ppm/6H/11D-I 1.肾、输尿管和膀胱毒性Kidney, Ureter, Bladder -other changes in urine composition2.血液毒性Blood - changes in bone marrow (not otherwise specified)3.血液毒性Blood - changes in leukocyte (WBC) count 19 MutipleDose Administration onto the skin Rodent - rat 20 mg/kg/4W-I 1.血液毒性Blood - changes in other cell count (unspecified)2.血液毒性Blood - changes in leukocyte (WBC) count3.慢性病相关毒性Related to Chronic Data - changes in testicular weight 20 MutipleDose Intraperitoneal Rodent - rat 450 mg/kg/16D-I 1.血液毒性Blood - changes in other cell count (unspecified)2.生化毒性Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other Enzymes 21 MutipleDose Oral Rodent - rat 29484 mg/kg/13W-C 1.内分泌毒性Endocrine - changes in thymus weight2.血液毒性Blood - changes in platelet count3.营养和代谢系统毒性Nutritional and Gross Metabolic - weight loss or decreased weight gain 22 MutipleDose Administration onto the skin Rodent - rat 3200 mg/kg/4D-I 1.内分泌毒性Endocrine - changes in thymus weight2.免疫系统毒性Immunological Including Allergic - decrease in humoral immune response 23 MutipleDose Oral Rodent - mouse 12110 mg/kg/2W-C 1.内分泌毒性Endocrine - changes in thymus weight2.慢性病相关毒性Related to Chronic Data - changes in testicular weight 24 MutipleDose Oral Rodent - mouse 82 mg/kg/13W-C 1.内分泌毒性Endocrine - effect on menstrual cycle2.内分泌毒性Endocrine - other changes3.血液毒性Blood - changes in spleen 25 MutipleDose Inhalation Rodent - mouse 1000 ppm/6H/11D-I 1.血液毒性Blood - changes in leukocyte (WBC) count2.慢性病相关毒性Related to Chronic Data - changes in testicular weight 26 MutipleDose Inhalation Mammal - dog 750 ppm/7H/12W-I 1.血液毒性Blood - microcytosis with or without anemia2.血液毒性Blood - other changes 27 MutipleDose Inhalation Rodent - rabbit 300 ppm/6H/13W-I 1.内分泌毒性Endocrine - changes in thymus weight2.血液毒性Blood - changes in erythrocyte (RBC) count3.慢性病相关毒性Related to Chronic Data - changes in testicular weight 28 MutipleDose Administration onto the skin Rodent - guinea pig 65 mg/kg/13W-I 1.血液毒性Blood - changes in erythrocyte (RBC) count2.营养和代谢系统毒性Nutritional and Gross Metabolic - weight loss or decreased weight gain3.慢性病相关毒性Related to Chronic Data - changes in testicular weight 29 SkinEyeIrrition Administration onto the skin Rodent - rabbit 483 mg/24H 1.Mild 30 SkinEyeIrrition Administration into the eye Rodent - rabbit 97 mg 31 SkinEyeIrrition Administration into the eye Rodent - rabbit 500 mg/24H 1.Mild 32 SkinEyeIrrition Administration into the eye Rodent - guinea pig 10 ug 1.Mild 33 Mutation Human Lymphocyte 150 mmol/L 34 Mutation Oral Rodent - rat 500 mg/kg 35 Mutation Oral Rodent - rat 500 mg/kg 36 Mutation Oral Rodent - mouse 500 mg/kg 37 Reproductive Oral Rodent - rat 175 mg/kg,female 7-13 day(s) after conception 1.生殖毒性Reproductive - Specific Developmental Abnormalities -cardiovascular (circulatory) system 38 Reproductive Oral Rodent - rat 175 mg/kg,female 7-13 day(s) after conception 1.生殖毒性Reproductive - Maternal Effects - parturition2.生殖毒性Reproductive - Effects on Newborn -biochemical and metabolic 39 Reproductive Oral Rodent - rat 15015 mg/kg,male 13 week(s) pre-mating 1.生殖毒性Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, andcount) 40 Reproductive Oral Rodent - rat 100 mg/kg,male 1 day(s) pre-mating 1.生殖毒性Reproductive - Paternal Effects - testes, epididymis, spermduct 41 Reproductive Oral Rodent - rat 350 mg/kg,female 9-15 day(s) after conception 1.生殖毒性Reproductive - Fertility -litter size (e.g. # fetuses per littermeasured before birth)2.生殖毒性Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stuntedfetus)3.生殖毒性Reproductive - Specific Developmental Abnormalities -cardiovascular (circulatory) system 42 Reproductive Inhalation Rodent - rat 68 mg/kg/4H,female 1-19 day(s) after conception 1.生殖毒性Reproductive - Fertility -pre-implantation mortality (e.g. reduction in number of implants per femaletotal number of implants per corpora lutea)2.生殖毒性Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) 43 Reproductive Inhalation Rodent - rat 30 ppm/6H,male 65 day(s) pre-mating 1.生殖毒性Reproductive - Paternal Effects - testes, epididymis, spermduct 44 Reproductive Inhalation Rodent - rat 100 ppm/6H,female 6-17 day(s) after conception 1.生殖毒性Reproductive - Maternal Effects - parturition2.生殖毒性Reproductive - Fertility -female fertility index (e.g. # females pregnant per # sperm positive females# females pregnant per # femalesmated)3.生殖毒性Reproductive- Effects on Newborn -live birth index (measured after birth) 45 Reproductive Inhalation Rodent - rat 100 ppm/6H,female 6-17 day(s) after conception 1.生殖毒性Reproductive - Effects on Newborn -viability index (e.g., # alive at day 4 per # bornalive)2.生殖毒性Reproductive - Effects on Newborn -growth statistics (e.g.%, reduced weight gain) 46 Reproductive Inhalation Rodent - rat 30 ppm/6H,male 13 week(s) pre-mating 1.生殖毒性Reproductive - Fertility -post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) 47 Reproductive Administration onto the skin Rodent - rat 11592 mg/kg,female 6-17 day(s) after conception 1.生殖毒性Reproductive - Fertility -female fertility index (e.g. # females pregnant per # sperm positive females# females pregnant per # femalesmated)2.生殖毒性Reproductive - Effects on Embryo or Fetus - fetaldeath 48 Reproductive Administration onto the skin Rodent - rat 4375 mg/kg,male 7 day(s) pre-mating 1.生殖毒性Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, andcount)2.生殖毒性Reproductive - Paternal Effects - testes, epididymis, spermduct3.生殖毒性Reproductive - Fertility - male fertility index (e.g. # males impregnating females per # males exposed to fertile nonpregnant females) 49 Reproductive Administration onto the skin Rodent - rat 2 mg/kg,female 10 day(s) after conception 1.生殖毒性Reproductive - Fertility -post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) 50 Reproductive Administration onto the skin Rodent - rat 1 mg/kg,female 12 day(s) after conception 1.生殖毒性Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stuntedfetus)2.生殖毒性Reproductive - Specific Developmental Abnormalities -craniofacial (including nose andtongue)3.生殖毒性Reproductive - Specific Developmental Abnormalities -gastrointestinal system 51 Reproductive Intraperitoneal Rodent - rat 330 mg/kg,female 12 day(s) after conception 1.生殖毒性Reproductive - Specific Developmental Abnormalities -musculoskeletal system2.生殖毒性Reproductive - Specific Developmental Abnormalities -cardiovascular (circulatory) system 52 Reproductive Intraperitoneal Rodent - rat 190 mg/kg,female 14 day(s) after conception 1.生殖毒性Reproductive - Specific Developmental Abnormalities -Central Nervous System2.生殖毒性Reproductive - Specific Developmental Abnormalities -urogenital system 53 Reproductive Intraperitoneal Rodent - rat 190 mg/kg,female 12 day(s) after conception 1.生殖毒性Reproductive - Specific Developmental Abnormalities -musculoskeletal system 54 Reproductive Intraperitoneal Rodent - rat 190 mg/kg,female 8 day(s) after conception 1.生殖毒性Reproductive - Fertility -post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) 55 Reproductive Subcutaneous Rodent - rat 600 mg/kg,female 6-20 day(s) after conception 1.生殖毒性Reproductive- Effects on Newborn -live birth index (measured after birth)2.生殖毒性Reproductive - Effects on Newborn -viability index (e.g., # alive at day 4 per # bornalive) 56 Reproductive Subcutaneous Rodent - rat 440 mg/kg,female 7-17 day(s) after conception 1.生殖毒性Reproductive- Effects on Newborn -live birth index (measured after birth) 57 Reproductive Oral Rodent - rat 250 mg/kg,female 13 day(s) after conception 1.生殖毒性Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stuntedfetus)2.生殖毒性Reproductive - Specific Developmental Abnormalities -musculoskeletal system 58 Reproductive Oral Rodent - mouse 175 mg/kg,female 11 day(s) after conception 1.生殖毒性Reproductive - Specific Developmental Abnormalities -musculoskeletal system 59 Reproductive Oral Rodent - mouse 2 mg/kg,female 7-14 day(s) after conception 1.生殖毒性Reproductive - Fertility -litter size (e.g. # fetuses per littermeasured before birth)2.生殖毒性Reproductive - Effects on Embryo or Fetus - fetaldeath3.生殖毒性Reproductive - Specific Developmental Abnormalities -Central Nervous System 60 Reproductive Oral Rodent - mouse 500 mg/kg,female 9 day(s) after conception 1.生殖毒性Reproductive - Fertility -post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)2.生殖毒性Reproductive - Fertility - litter size (e.g. # fetuses per littermeasured before birth)3.生殖毒性Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stuntedfetus) 61 Reproductive Oral Rodent - mouse 250 mg/kg,female 11 day(s) after conception 1.生殖毒性Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stuntedfetus)2.生殖毒性Reproductive - Specific Developmental Abnormalities -musculoskeletal system 62 Reproductive Oral Rodent - mouse 6250 mg/kg,male 25 day(s) pre-mating 1.生殖毒性Reproductive - Paternal Effects - testes, epididymis, spermduct 63 Reproductive Inhalation Rodent - mouse 1000 ppm/6H,male 11 day(s) pre-mating 1.生殖毒性Reproductive - Paternal Effects - testes, epididymis, spermduct 64 Reproductive Inhalation Rodent - mouse 500 ppm/7H,male 5 day(s) pre-mating 1.生殖毒性Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, andcount) 65 Reproductive Inhalation Rodent - mouse 50 ppm/6H,female 6-15 day(s) after conception 1.生殖毒性Reproductive - Fertility -litter size (e.g. # fetuses per littermeasured before birth)2.生殖毒性Reproductive - Specific Developmental Abnormalities -urogenital system 66 Reproductive Inhalation Rodent - mouse 50 ppm/6H,female 6-15 day(s) after conception 1.生殖毒性Reproductive - Specific Developmental Abnormalities -musculoskeletal system2.生殖毒性Reproductive - Specific Developmental Abnormalities -urogenital system 67 Reproductive Subcutaneous Rodent - mouse 1200 mg/kg,female 7-13 day(s) after conception 1.生殖毒性Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stuntedfetus) 68 Reproductive Subcutaneous Rodent - mouse 3200 mg/kg,female 7-14 day(s) after conception 1.生殖毒性Reproductive - Fertility -post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) 69 Reproductive Subcutaneous Rodent - mouse 250 mg/kg,female 8 day(s) after conception 1.生殖毒性Reproductive - Specific Developmental Abnormalities -Central Nervous System2.生殖毒性Reproductive - Specific Developmental Abnormalities -craniofacial (including nose andtongue) 70 Reproductive Intravenous Rodent - mouse 250 mg/kg,female 8 day(s) after conception 1.生殖毒性Reproductive - Specific Developmental Abnormalities -Central Nervous System 71 Reproductive Oral Primate - monkey 930 mg/kg,female 20-45 day(s) after conception 1.生殖毒性Reproductive - Fertility -abortion2.生殖毒性Reproductive - Effects on Embryo or Fetus - fetaldeath 72 Reproductive Oral Primate - monkey 633 mg/kg,female 20-45 day(s) after conception 1.生殖毒性Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stuntedfetus) 73 Reproductive Inhalation Rodent - rabbit 300 ppm/6H,male 65 day(s) pre-mating 1.生殖毒性Reproductive - Paternal Effects - testes, epididymis, spermduct 74 Reproductive Inhalation Rodent - rabbit 50 ppm/6H,female 6-18 day(s) after conception 1.生殖毒性Reproductive - Specific Developmental Abnormalities -body wall2.生殖毒性Reproductive - Specific Developmental Abnormalities -cardiovascular (circulatory) system3.生殖毒性Reproductive - Specific Developmental Abnormalities -urogenital system 75 Reproductive Inhalation Rodent - rabbit 50 ppm/6H,female 6-18 day(s) after conception 1.生殖毒性Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stuntedfetus)2.生殖毒性Reproductive - Specific Developmental Abnormalities -body wall3.生殖毒性Reproductive - Specific Developmental Abnormalities -musculoskeletal system 76 Reproductive Inhalation Rodent - rabbit 10 ppm/6H,female 6-18 day(s) after conception 1.生殖毒性Reproductive - Fertility -post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)2.生殖毒性Reproductive - Specific Developmental Abnormalities -musculoskeletal system 77 Reproductive Oral Rodent - guinea pig 6250 mg/kg,male 25 day(s) pre-mating 1.生殖毒性Reproductive - Paternal Effects - testes, epididymis, spermduct 78 Reproductive Administration onto the skin Rodent - guinea pig 65 mg/kg,male 65 day(s) pre-mating 1.生殖毒性Reproductive - Paternal Effects - testes, epididymis, spermduct 79 Reproductive Oral Rodent - hamster 1562 mg/kg,male 25 day(s) pre-mating 1.生殖毒性Reproductive - Paternal Effects - testes, epididymis, spermduct
聚乙二醇二甲醚化学性能稳定、热稳定性好、挥发损失小,具有沸点高、冰点低、蒸汽压低等诸多优点,是一种优良的有机溶剂,对CO2和H2S具有优良的选择吸收脱除功能,适用于煤制合成气的净化以及天然气、油田气、炼厂气和城市煤气中酸性气体的脱除,近年来广泛地应用于气体净化工艺中。