loss on ignition

• 強熱減量する

関

ignition loss

WordNet

1. the amount by which the cost of a business exceeds its revenue; "the company operated at a loss last year"; "the company operated in the red last year" (同)red ink, red
2. gradual decline in amount or activity; "weight loss"; "a serious loss of business"
3. something that is lost; "the car was a total loss"; "loss of livestock left the rancher bankrupt"
4. the disadvantage that results from losing something; "his loss of credibility led to his resignation"; "losing him is no great deprivation" (同)deprivation
5. the act of losing someone or something; "everyone expected him to win so his loss was a shock"
6. the experience of losing a loved one; "he sympathized on the loss of their grandfather"
7. indicates continuity or persistence or concentration; "his spirit lives on"; "shall I read on?"
8. (of events) planned or scheduled; "the picnic is on, rain or shine"; "we have nothing on for Friday night"
9. in a state required for something to function or be effective; "turn the lights on"; "get a load on"
10. in operation or operational; "left the oven on"; "the switch is in the on position"
11. the process of initiating combustion or catching fire
12. the act of setting something on fire (同)firing, lighting, kindling, inflammation
13. the mechanism that ignites the fuel in an internal-combustion engine (同)ignition system

PrepTutorEJDIC

1. 〈U〉(…を)『失うこと』,紛失《+『of』+『名』》 / 〈C〉(…の)『損害』,損失;損失額《+『of』+『名』》 / 〈U〉〈C〉(…に)『負けること』,(…の)敗北;失敗《+『of』+『名』》 / 〈U〉(状態・程度の)『減少』,低下 / 《複数形で》(戦場における)(人の)損害,此傷者数
2. (また《文》upon)《位置・場所》…『の上に』,の上で,の上の / (また《文》upon)《運動・動作の方向・対象》…『に』[向かって] / 《話》…を身につけて / (また《文》upon)《近接して場所》…の近くに,…に面して,…の側に / 《特定の日時》…『に』 / 《状態》…『して』,…中で,…すると / (また《文》upon)…『について』,…に関して / 《目的》…『で』,…に / (また《文》upon)…に基づいて,…によって,…の支え(助け)で / 《所属を表して》(委員会・チームなどの)一員で / (また《文》upon)…を軸にして,…で / (また《文》upon)《前後に同じ名詞を並べて》…に加えて,…についで / 『上に』,『身につけて』 / (電気・水道・ガス・ラジオなどが)『ついて』,通じて / 行われて,続けて,従事して / 《時の副詞[句]を伴って》前方へ,ずっと
3. 〈U〉点火,発火,燃焼 / 〈C〉(エンジンなどの)点火装置
4. 負ける,損をする,勝ち目がない
5. 見よ,そら

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/10/28 19:06:52」(JST)

wiki en

[Wiki en表示]

Loss on ignition is a test used in inorganic analytical chemistry, particularly in the analysis of minerals. It consists of strongly heating ("igniting") a sample of the material at a specified temperature, allowing volatile substances to escape, until its mass ceases to change. This may be done in air, or in some other reactive or inert atmosphere. The simple test typically consists of placing a few grams of the material in a tared, pre-ignited crucible and determining its mass, placing it in a temperature-controlled furnace for a set time, cooling it in a controlled (e.g. water-free, CO₂-free) atmosphere, and redetermining the mass. The process may be repeated to show that mass-change is complete. A variant of the test in which mass-change is continually monitored as temperature is changed, is thermogravimetry.

The loss on ignition is reported as part of an elemental or oxide analysis of a mineral. The volatile materials lost usually consist of "combined water" (hydrates and labile hydroxy-compounds) and carbon dioxide from carbonates. It may be used as a quality test, commonly carried out for minerals such as iron ore. For example, the loss on ignition of a fly ash consists of contaminant unburnt fuel.

In pyroprocessing industries such as lime, calcined bauxite, refractories or cement manufacture, the loss on ignition of the raw material is roughly equivalent to the loss in mass that it will undergo in a kiln. Similarly for minerals the loss on ignition represents the actual material lost during smelting or refining in a furnace or smelter. The loss on ignition of the product indicates the extent to which the pyroprocessing was incomplete. ASTM tests are defined for limestone and lime and cement among others.

References

UpToDate Contents

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Japanese Journal

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• X線分析の進歩 (44), 253-259, 2013-03
• NAID 40019660159

Related Links

• Loss on Ignition - 公益財団法人 日本食品化学研究振興財団

B. GENERAL TESTS Loss on Ignition The Loss on Ignition Test is designed to measure the amount of moisture or impurities lost when the sample is ignited under the conditions specified in the individual monograph. Hereinafter in ...

• ASTM D7348 - 13 Standard Test Methods for Loss on Ignition ...

5.1 LOI refers to the mass loss of a combustion residue whenever it is heated in an air or oxygen atmosphere to high temperatures. In the cement industry, use of the term LOI normally refers to a mass loss in a sample ...

Related Pictures

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★リンクテーブル★

リンク元	「強熱減量」「ignition loss」
関連記事	「loss」「ignition」「on」

「強熱減量」

　　[★]

英

ignition loss、loss on ignition

「ignition loss」

　　[★]

• 強熱減量

関

loss on ignition

「loss」

　　[★]

• n.

• 損失、減少

関

decline、decrease、diminish、diminution、down-regulate、down-regulation、downregulate、downregulation、fall、reduce、reduction

　 　 　 　 　 　 　

「ignition」

　　[★]

• n.

• 強熱、点火、発火

関

fire、firing、ignite

　 　 　 　

「on」

　　[★]

• adj.
• prep.

• adv.