{"id":4070,"date":"2024-08-28T03:04:24","date_gmt":"2024-08-28T03:04:24","guid":{"rendered":"https:\/\/chemneo.com\/?post_type=product&p=4070"},"modified":"2024-08-28T03:05:25","modified_gmt":"2024-08-28T03:05:25","slug":"chromium-sesquioxide-cas-1308-38-9","status":"publish","type":"product","link":"https:\/\/chemneo.com\/en\/product\/4070.html","title":{"rendered":"Chromium Sesquioxide CAS# 1308-38-9"},"content":{"rendered":"

Chromium Sesquioxide CAS# 1308-38-9<\/p>\n

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Chromium(III) oxide Basic information<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n\n
Product Name:<\/td>\nChromium(III) oxide<\/td>\n<\/tr>\n
Synonyms:<\/td>\ncipigmentgreen17;cosmetichydrophobicgreen9409;cosmeticmicroblendchromeoxide9229;dichromiumtrioxide;greenchromeoxide;<\/p>\n

greenchromicoxide;greenchromiumoxide;greenoxideofchromium<\/td>\n<\/tr>\n

CAS:<\/td>\n1308-38-9<\/b><\/td>\n<\/tr>\n
MF:<\/td>\nCr2O3<\/td>\n<\/tr>\n
MW:<\/td>\n151.99<\/td>\n<\/tr>\n
EINECS:<\/td>\n215-160-9<\/td>\n<\/tr>\n
Product Categories:<\/td>\nInorganics;INORGANIC & ORGANIC CHEMICALS;Dyes and Pigments;Inorganic chemistry;dyestuff metal chrome;metal oxide<\/td>\n<\/tr>\n
Mol File:<\/td>\n1308-38-9.mol<\/td>\n<\/tr>\n
\"Chromium(III)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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<\/td>\n<\/tr>\n
Chromium(III) oxide Chemical Properties<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Melting point<\/td>\n2435 \u00b0C<\/span><\/td>\n<\/tr>\n
Boiling point<\/td>\n4000 \u00b0C<\/span><\/td>\n<\/tr>\n
density<\/td>\n5.21<\/span><\/td>\n<\/tr>\n
refractive index<\/td>\n2.551<\/span><\/td>\n<\/tr>\n
Fp<\/td>\n3000\u00b0C<\/span><\/td>\n<\/tr>\n
storage temp.<\/td>\nRoom Temperature<\/span><\/td>\n<\/tr>\n
solubility<\/td>\nInsoluble in all solvents<\/span><\/td>\n<\/tr>\n
form<\/td>\npowder<\/span><\/td>\n<\/tr>\n
color<\/td>\nPale to dark green<\/span><\/td>\n<\/tr>\n
Specific Gravity<\/td>\n5.22<\/span><\/td>\n<\/tr>\n
Odor<\/td>\nat 100.00?%. odorless<\/span><\/td>\n<\/tr>\n
Water Solubility<\/td>\nInsoluble<\/span><\/td>\n<\/tr>\n
Crystal Structure<\/td>\nTrigonal<\/span><\/td>\n<\/tr>\n
Merck<\/td>\n14,2234<\/span><\/td>\n<\/tr>\n
Exposure limits<\/td>\nNIOSH: IDLH 25 mg\/m3; TWA 0.5 mg\/m3<\/span><\/td>\n<\/tr>\n
Stability:<\/td>\nStable.<\/span><\/td>\n<\/tr>\n
CAS DataBase Reference<\/td>\n1308-38-9(CAS DataBase Reference)<\/span><\/td>\n<\/tr>\n
NIST Chemistry Reference<\/td>\nChromium(iii) oxide(1308-38-9)<\/span><\/td>\n<\/tr>\n
EPA Substance Registry System<\/td>\nChromium(III) oxide (1308-38-9)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/div>","protected":false},"excerpt":{"rendered":"

Chromium oxide is a basic inorganic chemical raw material. Its chemical name is chromium trioxide, Cr2O3. It belongs to the trigonal crystal system. If a hexagonal unit cell is taken, the unit cell parameters are 4.960x 4.960\u00d713.584 and the axial ratio is 4.473. Cr2O3 has a \u03b3-Al2O3 structure. This rigid crystal is composed of oxygen ions that are closely packed and M3+ ions fill the octahedral gaps formed by these close packings.It is known that the ionic radii of Cr3+ and O2- are 0.069nm and 0.132nm respectively, and the ratio of positive and negative ionic radii is 0.52, in the range of 0.414~0.732. Therefore, the coordination number of Cr3+ is 6, so it is in the octahedral gap.<\/p>","protected":false},"featured_media":4121,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[22],"product_tag":[24],"class_list":{"0":"post-4070","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-daily-chemicals","7":"product_tag-daily-chemicals","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/chemneo.com\/en\/wp-json\/wp\/v2\/product\/4070","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chemneo.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/chemneo.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/chemneo.com\/en\/wp-json\/wp\/v2\/comments?post=4070"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/chemneo.com\/en\/wp-json\/wp\/v2\/media\/4121"}],"wp:attachment":[{"href":"https:\/\/chemneo.com\/en\/wp-json\/wp\/v2\/media?parent=4070"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/chemneo.com\/en\/wp-json\/wp\/v2\/product_brand?post=4070"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/chemneo.com\/en\/wp-json\/wp\/v2\/product_cat?post=4070"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/chemneo.com\/en\/wp-json\/wp\/v2\/product_tag?post=4070"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}