成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

??????

??????
?????? ??? ???
?? ??:
7446-70-0
???:
??????
???(??):
????????ALUMINUMTRICHLORIDE;???????;??????;??????,??;?????????;??????;?????????;?? ????
???:
Aluminum chloride
???(??):
AlCl3;ALUMINIUM CHLORIDE;ALUMINIUM TRICHLORIDE;ALUMINUM TRICHLORIDE;Aluminiumchlorid;ALUMINIUM CLORIDE;Aluminum chloride, anhydrous;Aluminium chloride, anhydrous, powder, extra pure, 98.5%;Pearsall;NSC 143016
CBNumber:
CB6247076
???:
AlCl3
??? ??:
133.34
MOL ??:
7446-70-0.mol
MSDS ??:
SDS

?????? ??

???
194 °C
?? ?
180°C
?? ??
1200kg/m3
??
2.44
???
1 mm Hg ( 100 °C)
???
88 °C
?? ??
Store below +30°C.
???
H2O: ???
??? ??
??
Specific Gravity
2.44
??
????? ????
??????(pH)
2.4 (100g/l, H2O, 20℃)
pH ??
2.4
??
?? ??? ???? ???? ??? ???
???
?? ??
??
Moisture Sensitive
Crystal Structure
AlCl3 type
crystal system
Monoclinic
Merck
14,337
Space group
C2/m
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.6151.0230.59190108.25900.3534
?? ??
NIOSH: TWA 2 mg/m3
???
?????? ?? ???? ?????. ??? ???? ??? ????? ???? ?? ??? ?? ? ????. ??? ? ?? ??? ??? ???? ????(?? ??? ?? MSDS ?? ??).
InChIKey
VSCWAEJMTAWNJL-UHFFFAOYSA-K
CAS ??????
7446-70-0(CAS DataBase Reference)
NIST
Aluminum trichloride(7446-70-0)
EPA
Aluminum chloride (7446-70-0)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? C,Xi,T
?? ???? ?? 36/38-34-62-51/53-48/23/24-40-23/24/25-14-48/25-48/20-52-36/37/38-52/53-48/23/24/25-60
????? 26-45-28-7/8-36/37/39-61-23-28A-53
????(UN No.) UN 3264 8/PG 3
WGK ?? 1
RTECS ?? BD0525000
TSCA Yes
?? ?? 8
???? II
HS ?? 28273200
?? ?? ??? 7446-70-0(Hazardous Substances Data)
?? LD50 oral (rat) 3730 mg/kg
LD50 skin (rabbit) >2 g/kg
TLV-TWA (ACGIH) 2 mg(Al)/m3
???? ?? KE-01045
????(GHS): GHS hazard pictograms
?? ?: Danger
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H314 ??? ?? ??? ?? ??? ??? ????? ?? ????? ?? 1A, B, C ?? GHS hazard pictograms P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
??????:
P260 ??·?·??·???·??·...·????? ???? ???.
P280 ????/???/???/?????? ?????.
P303+P361+P353 ??(?? ????)? ??? ??? ?? ??? ??? ????? ??? ?? ????/?????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P363 ?? ??? ??? ??? ?????.
NFPA 704
0
3 2
W

?????? C??? ??, ??, ??

??

???? ??? (AlCl3)? ????? ??? ?? ??????. ????? ??? ?? ? (III) ???? ???? ??? ?????. ?? ???? ?? ???? ???? ????? ?? ?? ?? ??? ?? ????? ?????. ???? ?? ??? ??? ?????. ??? Friedel-Crafts ?? (? ?? ? ??? ??)? ????? ?? ????? ?? ??? ?????.

??

?? ????? ?? ?? ??? ?????. ??? ?? ?? ?? ??, ??? ? ?? ??? ???? ?????. ??? ?? ?? ???? ? ?????.
?? ????? ?? ????? ?? ? ??? ???? ???? ????. ?? ????? ????? ??? ?? ??? ?? ?? ?????. ? ??? ??? ??? ?????.

??? ??

Aluminum chloride is a noncombustible but highly reactive whitish-gray, yellow, or green powder or liquid. Strong, acidic, irritating odor like hydrochloric acid.The vapor consists of double molecules Al2Cl6 . Soluble in water.

??

A yellowish-white crystalline or granular powder made by passing chlorine gas over alumina in a heated state and collecting the product by sublimation. Aluminum chloride was occasionally used in gold and platinum toning baths.

??

aluminium chloride: A whitishsolid, AlCl3, which fumes in moist airand reacts violently with water (togive hydrogen chloride). It is knownas the anhydrous salt (hexagonal; r.d.2.44 (fused solid); m.p. 190°C (2.5atm.); sublimes at 178°C) or the hexahydrateAlCl3.6H2O (rhombic; r.d.2.398; loses water at 100°C), both ofwhich are deliquescent. Aluminiumchloride may be prepared by passinghydrogen chloride or chlorine overhot aluminium or (industrially) bypassing chlorine over heated aluminiumoxide and carbon. The chlorideion is polarized by the smallpositive aluminium ion and thebonding in the solid is intermediatebetween covalent and ionic. In theliquid and vapour phases dimer moleculesexist, Al2Cl6, in which thereare chlorine bridges making coordinatebonds to aluminium atoms (seeformula). The AlCl3 molecule can alsoform compounds with other moleculesthat donate pairs of electrons(e.g. amines or hydrogen sulphide);i.e. it acts as a Lewis acid. At hightemperatures the Al2Cl6 molecules inthe vapour dissociate to (planar)AlCl3 molecules. Aluminium chlorideis used commercially as a catalyst inthe cracking of oils. It is also a catalystin certain other organic reactions,especially the Friedel–Craftsreaction.

?? ??

Aluminum chloride may be manufactured by chlorination of liquid aluminum in ceramic lined reaction vessels at 600-700oC.

?? ???

ALUMINUM CHLORIDE behaves as an acidic salt. Self-reactive. After long storage in closed containers, explosions often occur upon opening [Chem. Abst. 41:6723d 1947]. Can cause ethylene(also other alkenes) to polymerize violently [J. Inst. Pet. 33:254 1947]. Causes ethylene oxide to rearrange and polymerize, liberating heat [J. Soc. Chem. Ind. 68:179 1949]. Can catalyze violent polymerization of allyl chloride [Ventrone 1971]. Addition to nitrobenzene containing about 5% phenol caused a violent explosion [Chem. Eng. News 31:4915 1953]. Mixtures with nitromethane may explode when organic matter is present [Chem. Eng. News 26:2257 1948].

???

Powerful irritant to tissue; moderately toxic by ingestion. Reacts violently with water, evolving hydrogen chloride gas.

????

Contact with the skin or eyes in the presence of moisture causes thermal and acid burns.

????

Behavior in Fire: Reacts violently with water used in extinguishing adjacent fires

??? ? ???

Aluminum chloride is not flammable but reacts violently with water, so fires involving this substance should be extinguished with carbon dioxide or dry chemicals. Toxic fumes (HCl and reaction products) can be released during fires.

?? ??

Aluminum chloride (AlCl3) is a volatile solid which sublimes at 458 K. The vapour formed on sublimation consists of an equilibrium mixture of monomers (AlCl3) and dimers (Al2Cl6). It is used to prepare the powerful and versatile reducing agent lithium tetrahydridoaluminate (LiAlH4). Aluminium trichloride (AlCl3) act as Lewis acids to a wide range of electron-pair donors, and this has led to their widespread use as catalysts. In the important Friedel-Crafts acylation, AlCl3 is used as a strong Lewis acid catalyst in order to achieve the acylation of an aromatic ring.

Safety Profile

Moderately toxic by ingestion. Experimental teratogenic and reproductive effects. Mutation data reported. The dust is an irritant by ingestion, inhalation, and skin contact. Highly exothermic polymerization reactions with alkenes. Incompatible with nitrobenaenes or nitrobenzene + phenol. Highly exothermic reaction with water or steam produces toxic fumes of HCl. See also ALUMINUM COMPOUNDS, CHLORIDES, and HYDROCHLORIC ACID.

??? ??

It is used as ethylbenzene catalyst, dyestuff intermediate, and detergent alkylate; in making other chemicals and dyes, astringents, deodorants, in the petroleum refining, and the rubber industries

??

work with this substance should be conducted in a fume hood, and impermeable gloves should be worn at all times when handling AlCl3. Aluminum chloride should be stored in sealed containers under an inert atmosphere in a cool, dry place. Care should be taken in opening containers of this compound because of the possibility of the buildup of HCl vapor from hydrolysis with traces of moisture.

?? ??

UN1726 Aluminum chloride, anhydrous, Hazard class: 8; Labels: 8-Corrosive material. UN2581 Aluminum chloride solution, Hazard class: 8; Labels: 8-Corrosive material

Purification Methods

Sublime it several times in an all-glass system under nitrogen at 30-50mm pressure. It has also been sublimed in a stream of dry HCl and has been subjected to a preliminary sublimation through a section of granular aluminium metal [for manipulative details see Jensen J Am Chem Soc 79 1226 1957]. It fumes in moist air.

? ???

A strong reducing agent. Contact with air or water forms hydrochloric acid and hydrogen chloride gas. Reaction with water may be violent. Water, alcohol, and alkenes can cause polymerization. Incompatible with nitrobenzene, organic material, and bases. Attacks metal in presence of moisture, forming flammable hydrogen gas.

??? ??

May be sprayed with aqueous ammonia in the presence of ice and, when reaction is complete, flushed down drain with running water.

?????? ?? ?? ? ???

???

?? ??


?????? ?? ??

???( 748)?? ??
??? ?? ??? ?? ?? ? ??
Dayang Chem (Hangzhou) Co.,Ltd.
571-88938639 +8617705817739
info@dycnchem.com China 52849 58
Shanghai Bojing Chemical Co.,Ltd.
+86-86-02137122233 +8613795318958
bj1@bj-chem.com China 299 55
Qingdao Trust Agri Chemical Co.,Ltd
+8613573296305
aroma@qdtrustagri.com China 301 58
Auschemicals Pty Ltd
+61406202619
info@auschemicals.com Australia 426 58
Zhejiang Fengqing Biotechnology Co. , Ltd.
+86-13157026678 +86-13157026678
MuMu@zjfq.top China 52 58
Aladdin Scientific
+1-+1(833)-552-7181
sales@aladdinsci.com United States 57505 58
Hebei Weibang Biotechnology Co., Ltd
+8615531157085
abby@weibangbio.com China 8803 58
Hebei Mujin Biotechnology Co.,Ltd
+86 13288715578 +8613288715578
sales@hbmojin.com China 12825 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-13131129325
sales1@chuanghaibio.com China 5884 58
Hebei Jingbo New Material Technology Co., Ltd
+8619931165850
hbjbtech@163.com China 1000 58

?????? ?? ??:

Copyright 2019 ? ChemicalBook. All rights reserved