Search references for O4. Phrases containing O4
See searches and references containing O4!O4
Topics referred to by the same term
Look up o4 in Wiktionary, the free dictionary. O4 may refer to: LNER Class O4, a class of ex-Great Central Railway 2-8-0 steam tender locomotives Taff
O4
Compact crossover SUV
The Omoda O4 (initially introduced as the Omoda C3/3 and Omoda 4) is a compact crossover SUV by Chery and marketed through the export-only Omoda brand
Omoda_O4
OpenAI reasoning language model
OpenAI o4-mini was a generative pre-trained transformer model created by OpenAI. On April 24, 2025, the o4-mini model was released to all ChatGPT users
OpenAI_o4-mini
Motor vehicle
The Oldsmobile O4 was a front-wheel drive concept car designed by Oldsmobile in 2001. The O4 was a 4-door convertible that was aimed at a younger demographic
Oldsmobile_O4
Class of British 2-8-0 locomotives
The London and North Eastern Railway (LNER) Class O4 initially consisted of the 131 ex-Great Central Railway (GCR) Class 8K 2-8-0 steam locomotives acquired
LNER_Class_O4
Mineral of magnesium iron silicate
ɪˌviːn/) is a magnesium iron silicate with the chemical formula (Mg,Fe)2SiO4. It is a type of nesosilicate or orthosilicate. The primary component of the
Olivine
Mineral, semi-precious stone
formula [Mg,Fe,Mn]3Al2(SiO4)3; and the ugrandite series (uvarovite, grossular, andradite), with the general formula Ca3[Cr,Al,Fe]2(SiO4)3. Notable varieties
Garnet
Large language model
OpenAI released a smaller model, o3-mini, followed on April 16 by o3 and o4-mini. The OpenAI o3 model was announced on December 20, 2024. It was called
OpenAI_o3
4-atom allotrope of oxygen
The tetraoxygen molecule (O4), also called oxozone, is an allotrope of oxygen consisting of four oxygen atoms. Tetraoxygen was first predicted in 1924
Tetraoxygen
Generative AI chatbot by OpenAI
GPT-4o GPT-4.5 GPT-4.1 GPT-5 GPT-5.1 GPT-5.2 GPT-5.4 GPT-5.5 GPT-5.6 o1 o3 o4-mini People Sam Altman Greg Brockman Jessica Livingston Peter Thiel Elon Musk
ChatGPT
Paper-and-pencil game for two players
X7 → O4 → X8, this game will be a draw. X1 → O5 → X6 → O9 → X3 → O2 → X8 → O4 (7) → X7 (4), this game will be a draw. X1 → O5 → X6 → O9 → X7 → O4 → X2
Tic-tac-toe
Chinese camera drone
capable of transmitting live video via Wi-Fi (when using a smartphone) or an O4 transmission system (when using a controller or FPV goggles). The Neo lacks
DJI_Neo
Chemical compound
compound with the chemical formula KMnO4. It is a purplish-black crystalline salt, which dissolves in water as K+ and MnO4− ions to give an intensely pink to
Potassium_permanganate
British steam locomotive class (1911–1966)
preserved O4 63601 before its boiler ticket ran out, and includes four scenarios for the Woodhead Line and Quickdrive compatibility. ROD 2-8-0 LNER Class O4 LNER
GCR_Class_8K
Index of chemical compounds with the same molecular formula
The molecular formula C23H29ClO4 (molar mass: 404.93 g/mol, exact mass: 404.1754 u) may refer to: Chlormadinone acetate (CMA) Cismadinone acetate This
C23H29ClO4
Index of chemical compounds with the same molecular formula
The molecular formula ClO4 may refer to: Chlorine tetroxide (ClO4·) Perchlorate (ClO−4) This set index page lists chemical structure articles associated
ClO4
2002 studio album by Orthrelm
Norildivoth Crallos-Lomrixth Urthiln (also referred to as 2nd 18/O4 Norildivoth Crallos-Lomrixth Urthiln) is an album by the experimental duo Orthrelm
Norildivoth Crallos-Lomrixth Urthiln
Norildivoth_Crallos-Lomrixth_Urthiln
Chemical compound
characterized by X-ray crystallography: K2HAsO4(H2O)2.5 and K2HAsO4(H2O)6. Potassium dihydrogenarsenate, KH2AsO4 Stöger, Berthold; Weil, Matthias; Zobetz
Dipotassium_hydrogenarsenate
Chemical compound
Barium chromate is an inorganic compound with the chemical formula BaCrO4. It is a yellow solid, an oxidizing agent that produces a green flame when heated
Barium_chromate
Flavor enhancer (621 or E621)
Na3AsO4 Na2HAsO4 NaH2AsO4 NaSbO3 Metalates NaAlH4 NaAlO2 Na3AlF6 NaAl(SO4)2 NaAuCl4 Na2TiF6 NaBiO3 NaCoO2 NaMnO4 NaReO4 NaTcO3 NaTcO4 NaVO3 Na2CrO4 Na2Cr2O7
Monosodium_glutamate
One of the physical forms of elemental oxygen
are no stable O4 molecules in liquid oxygen, O2 molecules do tend to associate in pairs with antiparallel spins, forming transient O4 units. Liquid nitrogen
Liquid_oxygen
run was designated "O3GK", and did not result in any additional detections. O4 began on May 24, 2023; initially planned for March, the project needed more
List of gravitational wave observations
List_of_gravitational_wave_observations
Class of Welsh 0-6-2T steam locomotives
The Taff Vale Railway O4 class was a class of 0-6-2T steam tank locomotives designed by Tom Hurry Riches and introduced to the Taff Vale Railway in 1907
Taff_Vale_Railway_O4_class
Antacid medication
symptoms. Bismuth subsalicylate has the empirical chemical formula C7H5BiO4 and is obtained by reacting bismuth(III) oxide (Bi2O3) and salicylic acid
Bismuth_subsalicylate
Oxide mineral
Kyawthuite is an extremely rare mineral with formula BiSbO4. It is a natural bismuth antimonate, in which bismuth has oxidation state +3, and antimony
Kyawthuite
AI model evaluation nonprofit
model evaluations and contribute to system cards, including OpenAI's o3, o4-mini, GPT-4o and GPT-4.5, and Anthropic's Claude models. METR's CEO and founder
METR
Class of enzymes
In microorganisms, the activated substrate of this enzyme is O4-succinyl-L-homoserine or O4-acetyl-L-homoserine. Cystathionine gamma-synthase from plants
Cystathionine_gamma-synthase
Silicate mineral
silicate mineral made of aluminum and fluorine with the chemical formula Al2SiO4(F, OH)2. It is used as a gemstone in jewelry and other adornments. Common
Topaz
Topics referred to by the same term
FC Neubrandenburg 04 FC Schalke 04 Mobile phones in Australia (prefix 04) O4 (disambiguation) This disambiguation page lists articles associated with the
04
Motor vehicle
replacement for the Alero was seen in 2001 with the unveiling of the Oldsmobile O4 concept, designed by Bertone. The car was an open-top 4-seater with European
Oldsmobile_Alero
Ion, and compounds containing the ion
interest: ammonium perchlorate (NH4)ClO4, perchloric acid HClO4, potassium perchlorate KClO4 and sodium perchlorate NaClO4. Very few chemical oxidants are strong
Perchlorate
Drug of the fibrate class, mainly used to reduce cholesterol levels
DTXSID2029874 ECHA InfoCard 100.051.234 Chemical and physical data Formula C20H21ClO4 Molar mass 360.83 g·mol−1 3D model (JSmol) Interactive image Melting point
Fenofibrate
Mineral or gemstone of beryllium aluminate
The mineral or gemstone chrysoberyl is an aluminate of beryllium with the formula Be Al2O4. The name chrysoberyl is derived from the Greek words χρυσός
Chrysoberyl
Chemical compound
Potassium chromate is the inorganic compound with the formula K2CrO4. This yellow solid is the potassium salt of the chromate anion. It is a common laboratory
Potassium_chromate
Topics referred to by the same term
also designated as De Havilland Canada O-5 LNER sub-class O4/5, a subclass of the LNER Class O4, locomotive class O-5, the pay grade for the following officer
O5
Chemical compound
Perchloric acid is a mineral acid with the formula HClO4. It is an oxoacid of chlorine. Usually found as an aqueous solution, this colorless compound is
Perchloric_acid
Blue to purple variety of the mineral zoisite
both windows to appear the same color (violet). Synthetic forsterite (Mg2SiO4, the magnesium-rich end-member of olivine) has also been sold as tanzanite
Tanzanite
Mixture of concentrated sulfuric acid and dichromate
Chromic acid is a chemical compound with the chemical formula H2CrO4. More generally, it is the name for a solution formed by the addition of sulfuric
Chromic_acid
Chemical compound
chemical formula LiMnO4. It can be produced by the reaction of lithium sulfate and barium permanganate, and the trihydrate LiMnO4·3H2O can be crystallized
Lithium_permanganate
Gravitational wave observatory site
The fourth run, O4, began on May 24, 2023, and ended on November 18, 2025. A total of 250 detection "candidates" were observed during O4, with 77 confirmed
LIGO
Japanese underground gravitational wave detector
Although the sensitivity has not reached the planned 25-130 Mpc level for the O4 observing run, KAGRA joined O4b on 25 May 2023 with a sensitivity of 1 Mpc
Kamioka Gravitational Wave Detector
Kamioka_Gravitational_Wave_Detector
Chemical compound
formula of CsTcO4. Caesium pertechnetate can be prepared by reacting caesium carbonate and ammonium pertechnetate: Cs2CO3 + 2 NH4TcO4 → 2 CsTcO4 + (NH4)2CO3
Caesium_pertechnetate
Chemical compound
Ammonium perchlorate ("AP") is an inorganic compound with the formula NH4ClO4. It is a colorless or white solid that is soluble in water. It is a powerful
Ammonium_perchlorate
Naturally occurring orthoarsenates
Ni3(AsO4)2·8H2O Austinite CaZn(AsO4)(OH) Clinoclase Cu3(AsO4)(OH)3 Conichalcite CaCu(AsO4)(OH) Cornubite Cu5(AsO4)2(OH)4 Cornwallite Cu2+5(AsO4)2(OH)2
Arsenate_mineral
Chemical compound
Sodium perchlorate is an inorganic compound with the chemical formula NaClO4. It consists of sodium cations Na+ and perchlorate anions ClO−4. It is a white
Sodium_perchlorate
AI system that autonomously browses the web
version of Deep Research that would be available to free users, based on o4-mini instead of o3. As of June 2025, ChatGPT Pro subscribers ($200/month)
ChatGPT_Deep_Research
Chemical element with atomic number 8 (O)
oxygen (O* 2), one of two metastable states of molecular oxygen. Tetraoxygen (O4), another metastable form. Solid oxygen, existing in six variously colored
Allotropes_of_oxygen
Chemical compound
Potassium dihydrogenarsenate is the inorganic compound with the formula KH2AsO4. A white solid, this salt is used to prepared other arsenic-containing compounds
Potassium_dihydrogenarsenate
Series of teleoperated compact quadcopter drone models
binocular vision sensors and a time-of-flight sensor. The drone also features an O4 transmission system transmitting 1080p footage up to 20 km away. The Mini
DJI_Mini
Bile acid
Deoxycholic acid is a bile acid. Deoxycholic acid is one of the secondary bile acids, which are metabolic byproducts of intestinal bacteria. The two primary
Deoxycholic_acid
Rock-forming minerals with predominantly silicate anions
– Zn2SiO4 Olivine group Forsterite – Mg2SiO4 Fayalite – Fe2SiO4 Tephroite – Mn2SiO4 Garnet group Pyrope – Mg3Al2(SiO4)3 Almandine – Fe3Al2(SiO4)3 Spessartine
Silicate_mineral
List of IMA recognized minerals and groupings
Zn2Cu2+(AsO4)2, Keyite (Cu2+)3(Zn,Cu)4Cd2(AsO4)6·2H2O, Lammerite Cu3[(As,P)O4]2, Mcbirneyite Cu3(VO4)2, Tillmannsite (Ag3Hg)(V,As)O4, IMA2009-002 Cu3(AsO4)2 Anhydrous
Classification of non-silicate minerals
Classification_of_non-silicate_minerals
Chinese camera drone
registration thresholds in most many regions. Both Lito models feature an O4 video transmission system and an omnidirectional vision-based obstacle avoidance
DJI_Lito
Zirconium silicate mineral
corresponding chemical formula is ZrSiO4. An empirical formula showing some of the range of substitution in zircon is (Zr1–y, REEy)(SiO4)1–x(OH)4x–y. Zircon precipitates
Zircon
Monoclinic-prismatic mineral
Clinocervantite is a monoclinic-prismatic mineral with a chemical formula of Sb3+Sb5+O4. It was discovered in 1999 in cavities of waste rock at the Cetine Mine in
Clinocervantite
Chemical compound
with the formula Na3AsO4. Related salts are also called sodium arsenate, including Na2HAsO4 (disodium hydrogen arsenate) and NaH2AsO4 (sodium dihydrogen
Sodium_arsenate
Classification of a land vehicle for regulatory purposes
O3: exceeding 3.5 tonnes but not exceeding 10 tonnes (22,000 lb) Category O4: exceeding 10 tonnes Symbol G: off-road vehicles Special purpose vehicles
Vehicle_category
Battery electric compact SUV
Plus (59.93 kWh) and Peak (81.76 kWh). "Ekspansi Chery Terkendala, Omoda O4 EV Menunggu Produksi". Kompas.com. Retrieved 1 August 2026. "Chery iCar V23
ICar_V23
Chemical compound
powder, used to supplement iron intake. It has the chemical formula C4H2FeO4. Ferrous fumarate is often taken orally as an iron supplement to treat or
Iron(II)_fumarate
Chromium(VI) anions
structures made up of tetrahedral CrO4 units sharing corners. The hydrogen chromate ion, HCrO4−, is a weak acid: HCrO4− ⇌ CrO42− + H+; pKa ≈ 5.9 It
Chromate_and_dichromate
Chemical compound
Zinc chromate, ZnCrO4, is a chemical compound, a salt containing the chromate anion, appearing as odorless yellow powder or yellow-green crystals, but
Zinc_chromate
{M^{II}Fe2^{III}O4 + 3Al2O3 -> M^{II}Al2^{III}O4 + 2Fe^{II}Al2^{III}O4 + 1/2O2}}&{\ce {(Reduction)}}\\{\ce {M^{II}Al2^{III}O4 + 2Fe^{II}Al2^{III}O4 + H2O ->
Iron_oxide_cycle
Chemical compound
(/pərˈmæŋɡəneɪt, pɜːr-/) is a chemical compound with the manganate(VII) ion, MnO4−, the conjugate base of permanganic acid. Because the manganese atom has a
Permanganate
British steam locomotive (1925–1955)
consisted of an LNER Class O4 locomotive with 60+ loaded coal wagons then an assisting engine at the rear, usually another O4 or an Ex-GCR Class 1B, and
LNER_Class_U1
Densest star cluster known
presumed most evolved Wolf–Rayets. One star is intermediate between WN8–9h and O4–6 Ia+. There are no cooler evolved stars. Work by Donald Figer, an astronomer
Arches_Cluster
Chemical compound
Silver molybdate is an inorganic compound with the chemical formula Ag2MoO4. It is a yellow solid that crystallizes in the cubic system and exhibits dimorphism
Silver_molybdate
Subcompact crossover SUV
front-wheel-drive Platform T1X platform Related Chery Tiggo 5x Omoda C5 Omoda O4 Powertrain Engine Petrol: 1.6 L SQRF4J16 turbo I4 Petrol hybrid: 1.5 L E4T15B
Jaecoo_J5
Chemical compound
tetroxide (also osmium(VIII) oxide) is the chemical compound with the formula OsO4. The compound is noteworthy for its many uses, despite its toxicity and the
Osmium_tetroxide
Chemical compound
or nitrosonium perchlorate is the inorganic compound with the formula NO(ClO4). A hygroscopic white solid, it is the salt of the nitrosonium cation with
Nitrosyl_perchlorate
Hashemite is a very rare barium chromate mineral with the formula Ba(Cr,S)O4. It is a representative of natural chromates - a relatively small and rare
Hashemite_(mineral)
Chemical compound
Potassium perchlorate is the inorganic salt with the chemical formula KClO4. Like other perchlorates, this salt is a strong oxidizer when the solid is
Potassium_perchlorate
Chemical compound
Zn(ClO4)2 which forms the hexahydrate. Zinc perchlorate can be prepared by dissolving zinc oxide or zinc carbonate in perchloric acid: ZnO + 2 HClO4 → Zn(ClO4)2
Zinc_perchlorate
High-pressure phase of magnesium silicate
Ringwoodite is a high-pressure phase of Mg2SiO4 (magnesium silicate) formed at high temperatures and pressures of the Earth's mantle between 525 and 660 km
Ringwoodite
1915 novel by William Somerset Maugham
Bildungsroman Publisher William Heinemann Publication date 1915 Media type Print, hardback Pages 648 OCLC 343641 Dewey Decimal 823.912 LC Class PR6025.A86 O4 1915
Of_Human_Bondage
Chemical compound
Barium selenate is an inorganic compound with the chemical formula BaSeO4. It is isomorphous with barium sulfate, but its solubility is 18 times that of
Barium_selenate
Polymorph of ZrSiO4
Reidite is a rare polymorph of ZrSiO4 created when zircon experiences high pressure and temperature. Reidite is denser than zircon and has the same crystal
Reidite
Chemical compound
Thulium(III) selenate is an inorganic compound, with the chemical formula Tm2(SeO4)3. It can be obtained by reacting a thulium(III) oxide and selenic acid solution
Thulium(III)_selenate
Chemical compound, Si(OH)4
biomineralization and technology. It is the parent acid of the orthosilicate anion SiO4− 4. Typically orthosilicic acid is assumed to be a product of the hydrolysis
Orthosilicic_acid
Chemical compound
Ammonium perbromate is an inorganic chemical compound with the formula NH4BrO4. It shares similar properties to ammonium perchlorate, but is substantially
Ammonium_perbromate
Chemical compound
Sodium chromate is the inorganic compound with the formula Na2CrO4. It is a yellow hygroscopic solid, which can form tetra-, hexa-, and decahydrates. It
Sodium_chromate
Chemical compound
Strontium chromate is an inorganic compound with the formula SrCrO4. Strontium chromate is prepared from strontium chloride and sodium chromate, or from
Strontium_chromate
Chemical compound
Silver perchlorate is the chemical compound with the formula AgClO4. This white solid forms a monohydrate and is mildly deliquescent. It is a useful source
Silver_perchlorate
Chemical compound
formula NaBrO4. Sodium perbromate can be prepared by reacting sodium bromate with fluorine and sodium hydroxide: NaBrO3 + F2 + 2 NaOH → NaBrO4 + 2 NaF +
Sodium_perbromate
Nuragheite is a rare natural thorium molybdate, formula Th(MoO4)2·H2O, discovered in Su Seinargiu, Sarroch, Cagliari, Sardegna, Italy. This locality is
Nuragheite
Chemical compound
with the formula K2MnO4. This green-colored salt is an intermediate in the industrial synthesis of potassium permanganate (KMnO4), a common chemical.
Potassium_manganate
Chemical compound
Iridium tetroxide (IrO4, Iridium(VIII) oxide) is a binary compound of oxygen and iridium in oxidation state +8. This compound was formed by photochemical
Iridium_tetroxide
Chemical compound naturally occurring as the mineral larnite
(CaSiO3) 2CaO·SiO2, larnite (Ca2SiO4) 3CaO·SiO2, alite or (Ca3SiO5) 3CaO·2SiO2, (Ca3Si2O7). This article focuses on Ca2SiO4, also known as calcium orthosilicate
Calcium_silicate
Chemical compound
Ammonium tellurate is a chemical compound with the chemical formula (NH4)2TeO4. The compound can be obtained by oxidation of tellurium dioxide TeO2 with
Ammonium_tellurate
US Army bomb disposal personnel
Command Sergeant Major (E9) - Executive Officer, Major (O4) - Operations Officer Major (O4) Provides command and control for subordinate EOD organizations
Explosive ordnance disposal (United States Army)
Explosive_ordnance_disposal_(United_States_Army)
Allotrope of oxygen
infrared spectroscopy, researchers assumed in 1999 that this phase consisted of O4 molecules in a crystal lattice. However, in 2006, it was shown by X-ray crystallography
Octaoxygen
International reality television drag competition format
Entertainment Weekly reported that production companies World of Wonder and O4 Media partnered to develop more adaptations of the Drag Race franchise. The
Drag_Race_(franchise)
Chemical compound
Arsenic acid or arsoric acid is the chemical compound with the formula H3AsO4, more descriptively written as AsO(OH)3. This colorless acid is the arsenic
Arsenic_acid
Chemical compound
tetroxide (also hassium(VIII) oxide) is the inorganic compound with the formula HsO4. It is the highest oxide of hassium, a transactinide transition metal. It
Hassium_tetroxide
Triclinic lead copper chromate mineral
Pb10Cu(CrO4)6(SiO4)2(F,OH)2. It was first described from an occurrence in Iran. It is the copper analogue of hemihedrite (Pb10Zn(CrO4)6(SiO4)2(F,OH)2)
Iranite
Achieva 1992 Anthem 1995 Antares 1997 Alero Alpha 1999 Recon 2000 Profile 2001 O4 Notes Originally launched as a concept car, it then came into production.
List_of_Oldsmobile_vehicles
Chemical compound
chromate is a hypothetical inorganic compound, with the chemical formula of BeCrO4. It is predicted to have a certain bonding ability with noble gases. Little
Beryllium_chromate
Series of poker tournaments
Lowball Draw Championship 198 Naoya Kihara (1/2) $428,923 David Lin Results o4 $1,000 No-Limit Hold'em Summer Warm-Up Simeon Spasov (1/3) $104,177 18 $1
2026_World_Series_of_Poker
Chemical compound
Caesium perchlorate or cesium perchlorate (CsClO4), is a perchlorate of caesium. It forms white crystals, which are sparingly soluble in cold water and
Caesium_perchlorate
Piston powered aircraft engine manufacturer located in Mobile, AL
Power Continental A-40 O4 40 hp Continental O-170 O4 65 hp Continental O-190 O4 85 hp Continental O-200 O4 100 hp Continental O-240 O4 125 hp Continental
Continental Aerospace Technologies
Continental_Aerospace_Technologies
silicate mineral with the chemical formula Ca4Mn3+2Al2(Mn3+Mg)(SiO4)2(Si3O10)(V5+O4)(OH)6. It is named for its type locality, the Monte Alpe mine in Italy
Alpeite
O4
O4
O4
O4
O4
O4
O4
O4
O4