cov khoom
National Defense thiab Scientific Research Departments CAS 10043- 35-3 Fine Powder 99.2%-99.7% Boric Acid
Khoom nthuav dav
Qauv: BH3O3
61,83 wb
CAS: 10043-35-3 Nr
1. Boric acid yog crystalline compound tsim los ntawm dissolving boron trioxide hauv dej.Nws yog ib qho inorganic acid, feem ntau suav nrog tetraboric acid H2B4O7 (tseem hu ua pyroboric acid), metaboric acid (HBO2) n thiab orthoboric acid H3BO3 (tseem hu ua orthoboric acid).Ntawm lawv, orthoboric acid muaj cov ntsiab lus dej ruaj khov tshaj plaws.Orthoboric acid, tseem hu ua boric acid luv luv, yog dawb hmoov siv lead ua los yog triaxial chemicalbook scaly junction crystal nrog luster.Nws muaj ib tug me ntsis iab saj.Nws hnov greasy ntawm daim tawv nqaij.Nws yog odorless thiab soluble nyob rau hauv dej, ethanol, glycerin, ethers thiab essence.Cov tshuaj aqueous yog weakly acidic.Orthoboric acid yog maj mam dehydrated rau metaboric acid thaum rhuab mus rau 70-100 ℃, pyroboric acid thaum rhuab mus rau 150 ℃ -160 ℃, thiab boric anhydride (B2O3) thaum rhuab mus rau 300 ℃.
2 . Cov tshuaj aqueous yog qaug zog acidic, uas yog ib tug raug Lewis acid.Nyob rau hauv lub xub ntiag ntawm hydrochloric acid, citric acid los yog tartaric acid, nws muaj peev xwm txhawb lub solubility nyob rau hauv dej.Yog li, nws tuaj yeem ua kom huv los ntawm recrystallization.
3. Feem ntau, boric acid tsis yog tshuaj lom.Qhov koob tshuaj tuag ntawm cov neeg laus yog kwv yees li 15 ~ 20 grams ib kilogram ntawm lub cev hnyav, thaum cov menyuam yaus yog 3 ~ 6 grams ib kilogram ntawm lub cev hnyav.Kev nqus ntau ntau tuaj yeem ua rau mob hnyav heev.Cov tsos mob thaum ntxov yog ntuav, raws plab, ua pob khaus ntawm daim tawv nqaij, thiab lub hauv paus paj hlwb zoo siab ua ntej thiab tom qab ntawd inhibited.Mob ntshav tsis txaus lossis poob siab, feem ntau hauv 3 mus rau 5 hnub ntawm kev tuag.Rov qab noj cov tshuaj me me yuav ua rau hauv lub cev, ua rau muaj kab mob lom, anorexia, qaug zog, insanity, dermatitis, baldness, thiab kev coj khaub ncaws.
Daim ntawv thov
1.Boric acid feem ntau yog siv rau hauv cov khoom iav, tshwj xeeb tshaj yog nyob rau hauv cov khoom kub-resistant thiab tshuaj resistant iav khoom.Boron carbide ua los ntawm boric acid tuaj yeem siv los ua abrasive.Tsis tas li ntawd, nws tuaj yeem siv rau hauv enamel, ceramic glaze tshuaj, inorganic pigments, chiv thiab metallurgical ntau lawm.
2.Nws yog dav siv nyob rau hauv cov iav kev lag luam (optical iav, kua qaub-resistant iav, kub-resistant iav, iav fiber ntau rau insulating cov ntaub ntawv), uas yuav txhim khu lub tshav kub tsis kam thiab transparency ntawm iav khoom, txhim kho cov neeg kho tshuab zog, thiab luv luv. lub sij hawm yaj.Hauv kev lag luam enamel thiab ceramic, nws yog siv los txhim kho lub gloss thiab ceev ntawm cov khoom enamel, thiab nws kuj yog ib qho ntawm cov khoom xyaw ntawm cov tshuaj glaze thiab pigments.Raws li additives thiab cosolvent nyob rau hauv metallurgical kev lag luam, boron steel tshwj xeeb muaj siab hardness thiab zoo dov ductility, uas yuav hloov nickel steel.Boric acid muaj corrosion kuj thiab yuav siv tau raws li ib tug tshuaj Phau Ntawv preservative, xws li ntoo corrosion tiv thaiv.Nws yog siv rau hauv cov hlau vuam, tawv, thaij duab thiab lwm yam lag luam, nrog rau kev tsim cov dyes, kub-resistant thiab fireproof fabrics, dag gemstones, capacitors thiab tshuaj pleev ib ce.
3. Nws kuj tseem siv tau los ua tshuaj tua kab thiab catalyst.Boron uas muaj cov kab mob chiv hauv kev ua liaj ua teb muaj txiaj ntsig zoo rau ntau cov qoob loo thiab tuaj yeem txhim kho qoob loo zoo thiab tawm los.Boric acid kuj yog ib qho ntawm cov khoom siv raw rau kev tsim cov borides.Cov boron tebchaw tsim los ntawm boric acid yog dav siv nyob rau hauv lub teb chaws tiv thaiv thiab lwm yam industrial departments thiab scientific kev tshawb fawb cov tsev.
