{"book":"adl0842","page":227,"text":"۲۳۸\n\nترکرده بر سر این دود بماند فورا سرخ خوا\nشد و بهمین شناخت تیزاب است پنجاه هشتم\nپوتاسیم آن شی معدنی است که در الکلی\nپوتاش و در نمک های پوتاش موجود میبا\nاگر یک تکه پوتاسیم مثل نخود در آب بندازند\nآن بسرعت تمام همراه اکسیجن آب شامل خواهد\nو در هیدروجن او فورا آتش خواهد گرفت\nو ازین که الکلی پوتاش پیدا خواهد شد\nاز باعث آن رنگ شعله خواهد بود\nنمک های پوتاش بسیاری جاها از زیر زمین\nمی برایند و از خاکستر نهال ها هم پیدا میشوند","chars":422,"image":"https://storage.googleapis.com/adl-page-images/adl0842/00227.jpg","first_page":1,"last_page":275,"title":"[Chemistry textbook for high school students]","permalink":"https://afghanpress.org/book/adl0842/227","canvas":"https://afghanpress.org/iiif/adl0842/canvas/227","source":"https://afghanistandl.nyu.edu/books/adl0842/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0842_download.pdf","rights":{"image":{"statement":"Public domain. NYU states: \"All works presented on this website are, unless otherwise indicated, in the public domain. The images available on this website may be freely reproduced, distributed and transmitted by anyone for any purpose, commercial or non-commercial.\"","uri":"http://rightsstatements.org/vocab/NoC-US/1.0/","holder":"New York University Libraries","source":"https://afghanistandl.nyu.edu/about.html","delivery":"Images are served from a copy mirrored by this project, not from NYU's servers, under the reproduction terms above.","endorsement":"This is an independent project. It is not affiliated with, endorsed by, or reviewed by New York University."},"text":{"statement":"Machine-generated transcription, dedicated to the public domain under CC0 1.0. No warranty of accuracy: see the provenance block on every page.","uri":"https://creativecommons.org/publicdomain/zero/1.0/","holder":"Steps Ventures"}},"provenance":{"text_produced_by":"gemini-3.1-pro-preview","thinking_level":"low","read_completed":"2026-08-09","per_page_confidence":null,"per_page_confidence_note":"Not recorded during the corpus run. No calibrated per-page score exists, and none is estimated here.","human_reviewed":false,"accuracy_context":"Roughly two thirds of characters agree with a modern printed edition of the same text. Much of the disagreement is editorial, not misreading. Treat the transcription as a finding aid and read the page image before quoting.","primary_source":"The page image. The text is an index into it."}}