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Lithium fluoride (CAS # 7789-24-4) Featured duab
  • Lithium fluoride (CAS # 7789-24-4) 1

Lithium Fluoride (CAS # 7789-24-4)

Chemical Property:

Molecular Formula FLi
Molar Mass 25.94 Nws
Qhov ntom 2.64 g / mL ntawm 25 ° C (lit.)
Melting Point 845 ° C (lit.)
Boling Point 1681 ° C
Flash Point 1680 ° C
Dej Solubility 0.29 g / 100 mL (20 ºC) yog '
Solubility Soluble hauv 0.29 g / 100 mL (20 ° C) thiab hydrogen fluoride. Insoluble hauv cawv.
Vapor Siab 0Pa ntawm 25 ℃
Qhov tshwm sim random siv lead ua
Specific Gravity 2.635 ib
Xim Dawb mus rau dawb
Exposure Limit ACGIH: TWA 2.5 mg/m3 NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
Solubility Product Constant (Ksp) 2, 74 np:
Qhov siab tshaj plaws wavelength (λmax) ['λ: 260 nm Amax: ≤0.01',
, 'λ: 280 nm Amax: ≤0.01']
Merck 14,5531 ib
PH 6.0-8.5 (25 ℃, 0.01M hauv H2O)
Kev cia khoom Khaws ntawm +5 ° C rau + 30 ° C.
Kev ruaj ntseg Stable, tab sis hygroscopic. Hydrolyzes nyob rau hauv lub xub ntiag ntawm dej los tsim hydrofluoric acid, uas tawm tsam iav - tsis txhob khaws cia rau hauv iav fwj. Incompatible nrog aqueous daws, muaj zog acids, oxide
rhiab heev Hygroscopic
Refractive Index 1, 3915
Physical thiab Chemical Properties Lithium fluoride yog cov hmoov dawb, sodium chloride hom siv lead ua qauv. txheeb ze ntom ntom 2.640, melting point 848 ℃, boiling point 1673 ℃. Thaum 1100 ~ 1200 degrees pib volatilize, lub vapor yog alkaline. Lithium fluoride yog me ntsis soluble hauv dej thiab insoluble hauv cawv thiab lwm cov kuab tshuaj organic. Nyob rau hauv chav tsev kub, lithium fluoride yog soluble nyob rau hauv nitric acid thiab sulfuric acid, tab sis insoluble nyob rau hauv hydrochloric acid, nrog hydrofluoric acid Li2HF acid ntsev tsim.
Siv Siv los ua additives rau txhuas electrolysis thiab tsis tshua muaj lub ntiaj teb electrolysis, optical iav manufacturing, desiccant, flux, thiab lwm yam

Product Detail

Khoom cim npe

Hazard Cov Cim T – Toxic
Risk Codes R25 - Toxic yog nqos
R32 - Sib cuag nrog cov kua qaub liberates cov pa phem heev
R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij.
R23/24/25 – Toxic los ntawm inhalation, nyob rau hauv kev sib cuag nrog daim tawv nqaij thiab yog hais tias nqos.
Kev nyab xeeb piav qhia S22 - Tsis txhob nqus plua plav.
S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag.
S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.)
UN IDs UN 3288 6.1/PG 3
WGK Germany 2
RTECS OJ 6125000
FLUKA BRAND F CODE 10-21
TSCA Yog lawm
HS Code 28261900 ib
Kev Ceeb Toom Tshuaj lom
Hazard Class 6.1
Packing Group III
Toxicity LD hauv guinea npua (mg / kg): 200 qhov ncauj, 2000 sc (Waldbott)

 

Taw qhia

Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm lithium fluoride:

 

Zoo:

1. Lithium fluoride yog dawb crystalline khoom, tsw tsw thiab saj.

3. Me ntsis soluble hauv dej, tab sis soluble hauv cawv, acids thiab bases.

4. Nws belongs rau ionic crystals, thiab nws cov qauv siv lead ua yog lub cev-centered lub voos xwmfab.

 

Siv:

1. Lithium fluoride yog dav siv los ua ib qho flux rau cov hlau xws li txhuas, magnesium, thiab hlau.

2. Hauv nuclear thiab aerospace sectors, lithium fluoride yog siv los ua cov khoom siv rau kev tsim cov roj reactor thiab turbine blades rau turbine engine.

3. Lithium fluoride muaj qhov kub melting kub, thiab nws kuj yog siv los ua ib qho flux hauv iav thiab ceramics.

4. Hauv kev lag luam roj teeb, lithium fluoride yog cov khoom siv tseem ceeb rau kev tsim cov roj teeb lithium-ion.

 

Txoj kev:

Lithium fluoride feem ntau yog npaj los ntawm ob txoj hauv qab no:

1. Hydrofluoric acid txoj kev: hydrofluoric acid thiab lithium hydroxide reacted los tsim lithium fluoride thiab dej.

2. Hydrogen fluoride txoj kev: hydrogen fluoride tau dhau mus rau hauv cov tshuaj lithium hydroxide los tsim cov lithium fluoride thiab dej.

 

Cov ntaub ntawv kev nyab xeeb:

1. Lithium fluoride yog ib yam khoom corrosive uas muaj kev cuam tshuam rau ntawm daim tawv nqaij thiab qhov muag, thiab yuav tsum tau zam thaum siv.

2. Thaum tuav lithium fluoride, cov hnab looj tes tiv thaiv tsim nyog thiab tsom iav yuav tsum hnav kom tsis txhob muaj kev sib cuag.

3. Lithium fluoride yuav tsum khaws cia kom deb ntawm qhov hluav taws kub thiab cov oxidants kom tsis txhob muaj hluav taws kub los yog tawg.

 

  • Yav dhau los:
  • Tom ntej:
    • Sau koj cov lus ntawm no thiab xa tuaj rau peb

    cov khoom muaj feem xyuam