Styrene

Sharaxaad Gaaban:

CAS NO.: 100-42-5

Formula：C8H8

Miisaanka molecular：104.15

Mp：-31 °C

Bp：145-146 °C ( shid)

Tilmaanta refractive：n20/D 1.546 (lit.)

Cadaadiska uumiga：12.4 mm Hg (37.7 °C)

Cufnaanta：0.906 g/ml at 20 °C

Daahirsanaanta: ≥99.5%

Midabka (Pt-Co): ≤20

ethylbenzene (%): ≤0.08

Xakamaynta (MEHQ): 10 ~ 15

Meesha dhalaalka: -31°C( shid)

Barta karkarinta: 145-146°C(iftiin)

Cufnaanta: 0.906g/ml at 25°C

Cufnaanta uumiga: 3.6 (Vsair)

Cadaadiska uumiga: 12.4mmHg (37.7°C)

Tusmada dib-u-celinta: n20/D1.546(lit.) barta toosh 88°F

Xaaladaha kaydinta: Storeat<=20°C.

Solubility: 0.24g/l

Isku-dhafka aysiidhka (pKa): >14 (Schwarzenbac hetal., 1993)

Foomka: dareere

Midabka: Midab la'aan

Cuf-jiid gaar ah: 0.909

Xadka qarxa: 1.1-8.9% (V)

Xaddiga udgoonka (OdorThreshold): 0.035pm

Biyo milmi: 0.3g/L (20ºC)

Barafka qaboojinta: -30.6 ℃

Dareenka: Dareenka hawada

Merck: 14,8860

BRN: 1071236

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Faahfaahinta Alaabta

Tags Product

Sharaxaad:Styrene (C8H8), walxo kiimiko ah oo dareere ah oo muhiim ah, waa hydrocarbon udgoon monocyclic leh silsilad dhinaca olefin ah iyo nidaam isku xiran oo leh giraan benzene ah.Waa xubinta ugu fudud uguna muhiimsan ee hydrocarbons caraf udgoon oo aan dhergin.Styrene waxaa si weyn loogu isticmaalaa sida alaabta ceeriin ee soo saarista xabagta synthetic iyo caag synthetic.
Styrene waa dareere aan midab lahayn oo heerkulka qolka ku jira, aan ku milmin biyaha, laakiin ku milma dareeraha organic sida shidaalka, ethanol iyo ether, waana sun iyo ur gaar ah.Sababtoo ah styrene waxay leedahay curaarta labajibbaaran ee aan saturated oo waxay samaysaa hab isku dhafan oo kiimiko ah oo leh giraanta benzene, waxay leedahay falcelin kiimiko oo xoog leh waana ay fududahay in la is-polymerize iyo polymerize.Guud ahaan, styrene waxaa si xor ah u polymerized by kululeeyaha ama kicinta.Styrene waa guban karta oo waxay samayn kartaa isku-dhafka walxaha qarxa iyo hawo.

Astaamaha:Isbeddel xoog leh

Codsiga:

1. Inta badan loo isticmaalo sida alaabta ceeriin ee polystyrene, caag synthetic, balaastikada injineernimada, resin sarrifka ion, iwm.

2. Isticmaalka ugu muhiimsan waa monomer ahaan caag synthetic ah iyo balaastikada si ay u soo saaraan styrene-butadiene caag, polystyrene, iyo polystyrene xumbo;Waxa kale oo loo isticmaalaa in lagu koobiyeeyo monomers kale si loo soo saaro balaastikada injineernimada ujeedooyin kala duwan.

3. Waayo, synthesis organic iyo resin synthesis

4. Waxaa loo isticmaalaa in lagu sameeyo naxaas plating dhalaalaya, taas oo ka ciyaara doorka simi iyo iftiiminta

Xidhmada:170kg miisaanka saafiga ah, ama shuruuda macmiil ahaan.

Gaadiidka iyo kaydinta:

1. Sababo la xiriira sifooyinka kiimikada ee firfircoon, styrene guud ahaan waxaa lagu kaydiyaa bakhaar qabow oo hawo leh

2. Ka fogow dabka iyo meelaha kulaylka, iyo heerkulka kaydinta waa in aanu dhaafin 25 ℃

3. Si looga hortago is-polymerization of styrene, TBC polymerization inhibitor waxaa badanaa lagu daraa inta lagu jiro kaydinta iyo gaadiidka.

Hore: Stearyl methacrylate (SMA)

Xiga: Tert-Butyl Acrylate (TBA)

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