由买买提看人间百态

topics

全部话题 - 话题: solvent
首页 上页 1 2 3 4 5 6 7 8 9 10 下页 末页 (共10页)
r***o
发帖数: 3058
1
来自主题: Living版 - DIY Water heater .
然后 就是接 pvc 的排气。 用 purple primer 和solvent 把每2个piece 连起来
。 买了15 尺的管子 和各种 角度的接口, 外墙打了 3.5 寸的洞 伸出去。
因为我家 房顶上各种管道和线, 各种 很费了一番脑筋才接上。
M*****e
发帖数: 279
2
Putting bedbugs to bed forever
Link:
http://www.sciencedaily.com/releases/2014/12/141224103113.htm
On the right side of the this webpage, there are more links about how to
kill bedbugs.
Link to the original paper:
http://onlinelibrary.wiley.com/doi/10.1002/anie.201409890/abstr
Recipe:
Sleep tight! Bed bugs rely on chemical
cues to locate and arrest in safe shelters.
This aggregation pheromone comprises
five volatile components (dimethyl disulfide
and dimethyl trisulfide, (E)-2-hexenal,
(E)-2-oct... 阅读全帖
T*********n
发帖数: 804
3
现在的油漆都是water based的不是solvent based。除非cabinet啊之类的是新做的,
并没有很多挥发物。另外,中央空调一直在进出空气。我觉得通风几天就够了。需要注
意的是要看看是否需要做radon test,这个才是会影响健康的。
o****d
发帖数: 1346
4
看了看在trader joe's 买的油,
sunflower seed oil - cold pressed
Canola oil - Expeller pressed- No solvents used
extra virgin Olive oil - Cold pressed
好像挺安全的,没化学提取的问题,但没有提到转基因的问题。这次回国发现国内的油
都标示非转基因。
m**********r
发帖数: 2099
5
来自主题: Living版 - 去哪买活性炭除装修气味
巧了,家里刚装修,味道很大,买了这个:
http://www.sylvane.com/iqair-gc-multigas-air-purifiers.html?s_c
VOC GC: Ideal for removing volatile organic compounds (VOCs), solvents, and
more
Ammonia GC: Ideal for removing ammonia and ammonia-based compounds
Chemisorber GC: Ideal for removing formaldehyde, hydrogen sulfide, and
sulfur dioxide
MultiGas GC
买VOC GC,效果很好。机器里面是四个活性炭罐子,你自己买活性炭第一个问题是没有
air被forced through活性炭,所以吸收效果很有限,其次黑色粉末本身活性炭自己就
很难清理。
o****c
发帖数: 511
6
来自主题: Living版 - 怀孕,apartment刷漆,怪味不散
人不在家的时候多通风换气,不开要开空调,温度高些帮助挥发。在家的时候空调温度
低些,降低挥发。
本身涂料没问题,比较安全的。公布的原料也都是常见的二氧化钛,碳酸钙,石英砂之
类。估计味道来自latex polymer和其他助剂。0 VOC固然听起来好,其实不是真的0,
是<50g/L。而且缺乏coalescing solvent,会导致涂料全干时间很长,可能是导致味道
长时间不散的原因,而且有些东西smell threshold很低,通常1-2个ppm。
o****c
发帖数: 511
7
来自主题: Living版 - 怀孕,apartment刷漆,怪味不散
我看了这个漆的SDS,公布的原料都是固体。其他原料都是不需要公布的(无毒害,或
者含量不到reportable level)。 所以你是看不到用了何种solvent或者biocide的。
只有厂家自己知道配方。
latex polymer一般是比较安全的,助剂往往毒性大些,但是助剂用量又很小(0.1-1%
),所以达不到report的量,这也是为什么SDS中看不到。
所以根据公布的信息,不会对胎儿有影响。如果你问我建议,那最好还是加强通风,味
道低些再入住。 或者在家的时候空调开低些,放些活性炭。 99.9%没事,但是谁也不
愿意是那个0.1%
吧。
题外话:你要是看过SDS,保证不敢用这个漆,含有1A类致癌物的,吓人吧。其实不用
担心,是由于结晶石英砂粉末引起的,长期暴露会导致肺癌。但是这些东西都混在水里
了,实际使用反而是很安全的。倒是没公布的助剂成分更让人担心些。肯定含有有助剂
的,而且往往有多种,只是含量低不需要公布而已。
n***s
发帖数: 10056
8
I used to design water purification system that makes water to the highest
possible purity: 18 M OM in 25 degree C. Learned it in college many years
ago.
Here is one I found online:
http://water.usgs.gov/edu/qa-solvent.html
It reaches highest degree when at its purest form.
j*****t
发帖数: 35
9
Wood floor coating 以及 Wood stain中常用的溶剂为Mineral Spirits, 简称MS
solvent. 其他溶剂包括Toluene,Xylene,但DIY市场上并不多见。溶剂挥发有异味,但
毒性并不大。担心中毒纯粹是多余的。
m*******r
发帖数: 2044
10
来自主题: Medicine版 - Did the doctor broke my eardrum?
WHY NO?
The doctor should use some solvent/liquid to make the wax soft, then clean
it. If the doctor didn't, or didn't give the liquid enough time, it's quite
possible to damage his eardrum.
WHY NO?
i*******k
发帖数: 720
11
来自主题: NextGeneration版 - 怀孕期间与油画
你要不问还真没有想到这问题,本来还想画油画,太忙没时间。
最好还是不用,用水彩比较好。
During pregnancy and nursing, switch to water-based paints to avoid exposure
to solvents.
http://www.americanpregnancy.org/pregnancyhealth/paintexposure.html
k**n
发帖数: 6198
12
来自主题: NextGeneration版 - 做化学实验的JMS坚持母乳么?
不认为ped会知道。
有些solvent还好吧,有些要注意了,像dmf, 怀孕的时候就要特别小心,相信母乳也
一样。
跟导师说说,你的办公室不要在实验室里面,和colleage交流一下,用到这些溶剂的话
让别人处理,多给他们一些credit就好了.
母乳里面还有杀虫药了,这方面的实验数据都好多了。如果你实在不安心,就上配方奶
把。
k**n
发帖数: 6198
13
Because you are not a chemist.
Some solvent, you'd better deal with it in a hood.
i*****0
发帖数: 34
14
在生物化学实验室工作的姐妹们,如何在怀孕期间保护宝宝的安全?
实验室有 oragnic solvent (hexane, DCM, aceton, achohol...),有毒物品(
endrocrine disruptor),很当心会影响宝宝的健康.
Any adive or suggestion to share?
c*******u
发帖数: 12899
15
来自主题: NextGeneration版 - 再请教一个居家问题
acetone:
http://en.wikipedia.org/wiki/Acetone
I don't think 一元店 has it.
You may ask your friends who have access to chemicals in the lab. Acetone is
a widely used solvent.
Gasoline may also work.
k****o
发帖数: 991
16
加DHA+PROBIOTIC的那种?
有很多好评, 可最近看到的一个REVIEW吓我一跳:
Parents, be aware: contains neurotoxic chemicals that definitely AREN'T
organic!, March 17, 2010
By Concerned Parent (Pennsylvania, USA) - See all my reviews
This review is from: HAPPYBELLIES Oganic Baby Cereals, DHA + Probiotic,
Organic Brown Rice Cereal, 7-Ounce Canisters (Pack of 6) (Grocery)
Parents, before buying this stuff, do quick Google search for The
Cornucopia Institute's report entitled "Replacing Mother - Imitating
Human Breast Milk in t... 阅读全帖
b*****e
发帖数: 585
17
来自主题: NextGeneration版 - 最近迷上了指甲油
我觉得这东西里面有有机溶剂,死活也不可能是organic的
当然啦,你非要说是organic的也可以,因为是organic solvent啊,哈哈
c*******u
发帖数: 12899
18
☆─────────────────────────────────────☆
PeterTu (Tutu) 于 (Tue May 17 11:17:02 2011, 美东) 提到:
心情真是坏到了极点,辛辛苦苦为公司卖命快3年了,每天工作十几个小时。刚刚发现
自己怀孕了,告诉老板(一个50+,离过n次婚,没有孩子的工作狂人)我不能再继续接
触化学品,辐射之类的东西了,并把doctor's notes给了他。人家说考虑考虑,以下是
人家考虑的结果:
1/ 要吗回来继续正常的工作,要不就none pay leave,并且在离开期间自己付保险,公
司没有任何paid leave 给孕/产妇
2/ 没有desktop job给我做,哪怕是part time (我觉得他是故意找茬,我是research
scientist, 其实平时还是由research job 要作的)
3/ 不会把我调到其他部门,因为没有合适的职位给我
公司的HR建议我申请disability(6个月),可是这个要拿到医生的签字好像很难
其实我在这样恶劣的环境工作,主要就是想熬张绿卡,现在绿卡熬到了,却发现自己怀... 阅读全帖
c***a
发帖数: 942
19
来自主题: NextGeneration版 - 宝宝的泡沫塑料字母毯会致癌!!!
我刚在babiesrus给娃买了alphabet and number play mat,发现娃老是把字母抠出来
放嘴里咬,就上网想查一下有毒没有,结果发现欧洲现在禁买这种泡沫塑料的play mat
,说是会致癌。
Belgium is to ban the sale of all foam puzzle mats for babies and toddlers,
citing tests showing they contain a cancer-causing chemical.
Formamides are used to soften the foam in the mats but are corrosive and can
be deadly. Toxicologist Alfred Bernard explained:
"They are solvents, residues from the manufacturing process that stay in the
product afterwards. They can be absorbed through br... 阅读全帖
n*******3
发帖数: 5232
20
来自主题: NextGeneration版 - HappyBellies orgnic super cereals貌似有问题
我开始想买这个牌子的来着,star很多,看着也不错。后来读了下review。
看到这个只给一分的review,下面跟帖的好多人都说看了以后不敢买了:
1.0 out of 5 stars Parents, be aware: contains neurotoxic chemicals that
definitely AREN'T organic!, March 17, 2010
By
Concerned Parent
This review is from: HAPPYBELLIES Organic Super Cereals, DHA, pre &
Probiotics + Choline, Organic Brown Rice Cereal, 7-Ounce Canisters (Pack of
6) (Grocery)
Parents, before buying this stuff, do quick Google search for The Cornucopia
Institute's report entitled "Replacing Mother - Imitati... 阅读全帖
f*******e
发帖数: 293
21
来自主题: NextGeneration版 - 38周,家里刷墙会不会影响宝宝。
我孕中期去过construction site。那里到处都在装修房子,刷漆什么的。味道重的不
行。后来我问ob,ob说现在的household paint fume都是按照国家标准来做的,已经很
安全了,对宝宝不会有影响。
但是,我在之后很长的一段时间里还是非常的懊悔以及后怕。所以我给你的建议也是尽
量不要做会让自己提心吊胆的事情。如果一定要刷,最好follow下面几点:
1. Protect your skin by wearing protective clothing that includes long pants
, long-sleeved shirts and gloves
2. Be certain that the room and house are well ventilated; open the windows
and turn on fans
3. Limit the time you spend on the project; take breaks and move into the
fresh air frequently
4. Keep your f... 阅读全帖
l******o
发帖数: 1864
22
Do everything in the hood! Not just reactions, the balance, chromatography,
rotary vacuum evaporator and waste drum should all be in the hood. Any power
or solvent should either be in a capped container or in the hood. This way
you won't inhale chemicals. Wear PPE so you won't contact chemical directly.
Try to spend minimum time in the lab for the first trimester.
U**R
发帖数: 70
23
来自主题: NextGeneration版 - 新家刷漆对宝宝真的很有害吗?
婴儿房也不用特别的油漆,和大人用的一样就行,当然前提是选0 VOC的内墙涂料。只
是注意如果涂有颜色的,在加颜色时一定要solvent free的着色剂(colorant)我在前
面的帖子里都解释过。
实在不放心,图个心里踏实,就尽量开窗,如果有条件,就能开多久开多久,直到你怎
么都闻不到一点味道了,你也就完全放心了,就好了。呵呵。
U**R
发帖数: 70
24
来自主题: NextGeneration版 - 新家刷漆对宝宝真的很有害吗?
婴儿房也不用特别的油漆,和大人用的一样就行,当然前提是选0 VOC的内墙涂料。只
是注意如果涂有颜色的,在加颜色时一定要solvent free的着色剂(colorant)我在前
面的帖子里都解释过。
实在不放心,图个心里踏实,就尽量开窗,如果有条件,就能开多久开多久,直到你怎
么都闻不到一点味道了,你也就完全放心了,就好了。呵呵。
B******1
发帖数: 9094
25
First, tell the HR people of your company that you are pregnant.
Second, consult with your primary doctor or OB for your physical conditions
and seek their professional opinions about the length and intensity of the
daily work you can and cannot perform. Ask for a written report. If you
are a chemist/biologist, ask for a list of chemicals/solvents that you
should not tough. If you are dealing with computers, ask for the maximum
hours you can sit before a screen. If you are a cashier in a retai... 阅读全帖
B******1
发帖数: 9094
26
来自主题: Parenting版 - 实用的生活小窍门 (转载)
Never tried myself. But in theory, if you provide a surface for the hot
liquid to boil from, you can prevent sudden boiling accidents. That's the
reason why chemists throw boiling stones into a heated solvent.
l*******i
发帖数: 52
27
Always use light colors, or just straight white. most dark colors contain
much more solvents and surfactants. Actually, many of the paint companies
start to promote 0 VOC colorants now. just ask if they have it if you need
to tint to color.
h******h
发帖数: 1257
28
来自主题: Parenting版 - 造假可耻
搜了下其他几个竞赛,唯一有可能的几个名字列出来了 女性first name的中国娃已经
省掉了
ISEF 2014
Determining the Active Compound in Achyranthes aspera Leaf Extract and Its
Effects on
the Cell Cycle and Growth of Pancreatic Cancer Cells
Nanruoyi Zhou, 18, Senior, American Heritage School, Plantation, Florida, T:
Osmel Rodriguez
2013
Use of Co-Solvents to Enhance Astaxanthin Extraction from L. setiferus
Shells with Vegetable Oils
Shixuan Justin Li, 15, Freshman, Rutherford High School, Panama City,
Florida,
T: Shixuan Justin Li
Sodium ... 阅读全帖
h*******u
发帖数: 160
29
来自主题: Postdoc版 - paper help
Title: Solvent-dependent variation of the spin state of bis(
salicylaldoximato) nickel(II) in nonaqueous solutions
Author(s): Kudryavtsev AB; Frauendienst G; Linert W
Source: JOURNAL OF COORDINATION CHEMISTRY Volume: 46 Issue: 2 Pages:
221-232 DOI: 10.1080/00958979808053733 Published: 1998
Times Cited: 2 (from All Databases)
w********[email protected]
Thanks a lot
i***5
发帖数: 457
30
soaking them in clean water is enough. she never used solvent to clean
fruits or vegetables in China or in US. you'd better stop imaging other
people's life, which only makes you a laughing stock

吗?
b*****9
发帖数: 8922
31
☆─────────────────────────────────────☆
swordsman (笑傲江湖) 于 (Fri Oct 14 21:30:32 2011, 美东) 提到:
来美国1-2年的学生最喜欢写这些帖子了,因为生活正处在拧巴的境地里。
为什么这么说?因为,学生根本就不知道美国生活水平是啥样,那点奖学金在美国是真
正的贫困人口,而且还是赤贫,因为连点积累都没有。穷是一方面,另一方面是刚到美
国一两年,生活圈子也很窄,根本不知道美国人的日子都是怎么过的。而且,1-2年的
时候正是自以为已经知道美国生活是啥样的时候,所以基本上是人在美国,然后拿国内
的生活方式往美国身上套,想要在美国过国内那样的生活,这就是拧巴的地方。
对于这样的小朋友,俺只能说,好好念书,然后毕业找像样的工作吧。至于中美比较,
两国的生活方式有根本的不同,而且也根本不在一个发展层次上,根本就没啥可比性..
...
☆─────────────────────────────────────☆
zmimy (咪咪) 于 (Fri Oct 14 21:31:34 2011, 美东) 提... 阅读全帖
x******g
发帖数: 289
32
来自主题: Returnee版 - 上海科大新进人员论文水平堪忧
物质学院(包括物理、材料、化学等学科)
该学院一共一个正教授,三个助理教授
正教授代表作
1. A First Example of “Wittig Reaction” on a Coordinated Carbon Dioxide
Nickel Complex. Journal of American Chemical Society.
2. Theoretical Study of Carbon Dioxide Coordination in Palladium Complexes.
Applied Organometallic Chemistry.
3. Theoretical Investigation of Ketene Bonding Modes in Bis(phosphine)
Palladium Ketene Complexes. Journal of Coordination Chemistry.
4. Double Insertion of Methylene into Nickel-Phosphorus Bonds: Synthesis and
Structur... 阅读全帖
Q*****Y
发帖数: 741
33
来自主题: Returnee版 - 你们要的青千总结来了
这是他主页上的文章列表,每篇文章后面都列有影响因子,这种行为很奇葩。说明他很
在意影响因子,不干生物却甚于生物。在流体力学之外,他显然也打起了化学+纳米+
材料的主意,他喜欢被attention,追流行。有几篇文章nanoparticle, nanorod 是关
键词。这篇PRL的文章是他独立之后的有限的亮点文章,但却走的是nanopore(这里是
micron size)的路线,主要是实验数据总结,强的理论基础看不出来。可以预见,这哥
们儿去了南方科技大,一定会与那里的纳米灌水风气相结合,搞出很多他想要的高点数
文章来。
另,25篇文章中与其PhD 老板的文章有10篇,够成了他迄今为止有限文章引用数的绝大
部分。
1. Li, K. Krueger, W. Yang, H. Duan, and W. Deng*, Gas-focused Liquid
Microjets from a Slit, Physics of Fluids, 27, 032101 (10 pages) 2015. (IF=1.
9)
2. Zhao, W. Yang, C. Li, Z. Gao, B. Mi... 阅读全帖
Q*****Y
发帖数: 741
34
来自主题: Returnee版 - 你们要的青千总结来了
这哥们儿可能还存在文章署名学术不端:
Enhancement of the performance of organic solar cells by electrospray
deposition with optimal solvent system
Xin-Yan Zhao, Xizu Wang, Siew Lay Lim, Dongchen Qi, Rui Wang, ZhiQiang Gao,
BaoXiu Mi, Zhi-Kuan Chen, Wei Huang, Weiwei Deng
Publication date
2014/2/28
Journal: Solar Energy Materials and Solar Cells
T**s
发帖数: 6891
35
二手交易风险自负!请自行验证是否合法和一手卡!:
Y
我想卖的物品:
32瓶倩碧黄油(lotion/gel)+10个倩碧礼包
单张面值:
$24.5 with pump and $23 without pump
可接受价格(必须明码标价!):
$22 with pump and $20 without pump, 礼包$8一个
物品新旧要求:
with pump共21个lotion和6个Gel:10年下半年批号,
without pump共5个Lotion:11年1月批号
两种礼包各5个:
礼包1 (7 pieces):
Rinse-off eye makeup solvent 2 oz
Dramatically different moisturizing lotion 1 oz (黄油)
Moisture surge extended thirst relief 0.5 oz (水磁场)
High-impact mascara 0.14 oz
Different lipstick/long last glosswear SPF15
Clinique hair brush an... 阅读全帖
w******a
发帖数: 986
36
来自主题: SellAbroad版 - clinique的scrub cream 有人收吗?
CL 7 day scrub cream,30ml,MC0,30+个,$6/each
CL rinse-off eye makeup solvent,CB0,20+个,$3/each
借用了下面帖子里的信息和价格。thanks
http://www.mitbbs.com/article_t/Exchange/316729.html
M****l
发帖数: 109
37
求购倩碧礼包,闲散小样,Clinique, lancome, Estee lauder,
各种品牌都收,主要是倩碧的主打产品,请参考下面的清单。
希望长期合作!
强调批号要求以今年为主,可以带少量去年的。09年的不要。请检查批号!!
满$100 my label
BOA, paypal, billpay 都可以付
各种礼包:$8-12
瓶装小样:$4-5 each
管装小样:$1-3 each
眼影:$1-3
双头唇彩:$2
口红: $1 each
睫毛膏:$1 each
试管小香:$1 for 3 起
Send list to: t**********[email protected]
Examples:
Clinique Even Better Skin tone correcting moisturizer SPF 20 .5oz/15ml 小瓶$5
Clinique Moisture Surge Extra Thirsty Skin Relief 15ml/.5oz 小瓶$5
Clinique All About Eyes Reduces Puffs and Circles .21... 阅读全帖
w******s
发帖数: 768
38
来自主题: SellAbroad版 - 【出售】一些雅诗/倩碧礼包
雅诗:
14年4月Bloomingdales $18*2
倩碧:14年5月Nordstrom $12*19,
14年5月Nordstrom替代礼包5件套 $6*2
14年5月官网紫色礼包$16*4(包含1个腮红刷,2个clinique happy香水 4ml,2个
moisture surge 7ml,1个all about eyes 5ml,2个睫毛膏,2个唇膏)
14年4月官网绿色礼包$8*5(额外送的镭射眼霜3ml小样$1*4,Black Honey唇膏$1*4)
14年3月dillards(foundation都是浅色的,没有最深的那种)$12*52
14年2月belk $12*2
14年2月Saks(1个turnaround overnight 15ml,1个7 day scrub cream 30ml,1
个3色眼影,1个唇膏,1个睫毛膏,1个laser focus 15ml,1个superprimer universal
face primer 15ml,1个rinse-off eye makeup solven... 阅读全帖

发帖数: 1
39
clinique:
1.ake the day off TM makeup remover for lids,lashes & lips(紫卸妆水)125ml
单价15
2.Clinique Rinse Off Eye Make Up Solvent(青卸妆水)125ml 单价15
3.Clinique For Men M Protect Broad Spectrum SPF 21 Daily Hydration +
Protection(保湿 防晒)3.4oz 单价21
4.Clinique Even Better Makeup SPF15 (Dry Combinationl to Combination Oily) -
No. 05 Neutral(粉底液)30ml 单价22
Honey
01 Alabaster
Ivory
11 Porcelain Beige (MF-N)
Vanilla
02 Fair (VF-P)
5.All about eye rich 15ml 单价:25
Origins :
Origins Checks And BalancesTM F... 阅读全帖
j*****7
发帖数: 4348
40
来自主题: Stock版 - 多少人今天上了ABK?
记不清楚了, 上次interest due应该是在半年以前了吧. 他妈的欠债不还的能是什么
solvent的主儿吗?
G*******m
发帖数: 16326
41
想法太合理了,太rational。
Markets can remain irrational a lot longer than you and I can remain
solvent
o*********l
发帖数: 1807
42
Free lesson kid, The market can stay irrational longer than you can stay
solvent.
C****a
发帖数: 1639
43
来自主题: Stock版 - TA的基本假设
Eventually it will. But The Market Can Stay Irrational Longer Than You Can
Stay Solvent. Unless you have a
super deep pocket or super patience, most people could not survive the
irrational market.
Z****g
发帖数: 13731
44
原创?太牛掰了!!
r*m
发帖数: 16380
45
所以俺坚决的小仓位扰敌,一定要让敌人先倒下。
g**********7
发帖数: 2026
a**x
发帖数: 215
47
来自主题: Stock版 - 今天大涨的分析
a lot of ppl try to make sense out of the mkt, but the mkt simply doesnt
make sense
or a more famous saying, Markets can remain irrational a lot longer than you
and I can remain solvent
k********n
发帖数: 18523
48
来自主题: Stock版 - Banks nowhere near deal on Greece
BRUSSELS (AP) -- A top bank lobbyist insisted Saturday that banks and the
eurozone are far from reaching a deal to cut Greece's debt, despite claims
by eurozone finance ministers that they will ask banks to take steeper
losses on their Greek bonds.
Although the ministers did not say how much of a cut they are aiming for, a
report from Greece's international debt inspectors suggested that the value
of Greece's bonds may have to be slashed as much as 60 percent to get the
country solvent enough to... 阅读全帖
T****t
发帖数: 3
49
The market will consolidate a bit to find a new trading range. So, I think
the easy money has been made for the past month. From now on to the end of
the year, it will be a stock picking market.
I took a bit profits on FCX and AKS. But did not sell one share of tech
stocks. I expect tech stocks would go much higher by year end expecially the
semi sector. I am long ONNN and just bought AMD for their rosy outlook.
Watch closly on Fed meeting and job report next week. If the Fed is clear on
no QE3,... 阅读全帖
a*****1
发帖数: 3134
50
来自主题: Stock版 - 阿克曼这次要被外婆么
I think Icahn is a big nasty bully on CNBC. Ackman story is credible but
market can be crazy as long as he is solvent.
首页 上页 1 2 3 4 5 6 7 8 9 10 下页 末页 (共10页)