味咸，平，无毒。主安心神，坚骨髓，除百病，变白，润肌肤，令人不老体健能食，
久服令人身重肥黑，合诸药各有所主。其造作粉，飞炼有法，文多不载。人多取杂铁作屑
飞之，令体重，真钢则不尔。其针砂，市人错 铁为屑，和砂飞为粉卖之，飞炼家亦莫辨也
。（取钢铁为粉胜之。今附）
图经文具铁条下。
味辛、甘，平，无毒。主风热，恶疮疡疽，疮痂疥，气在皮肤中，除胸膈中热气，食
不下，止烦，去黑子。一名铁液。可以染皂。生牧羊平泽及 城或析城。采无时。
臣禹锡等谨按日华子云∶铁液，治心惊邪，一切毒蛇虫及蚕、漆咬疮，肠风痔 ，脱肛，
时疾热狂，并染鬓发。今注∶解在铁精条。
图经文具铁条下。
\r钢铁\pd39.bmp\r
味甘，无毒。主金疮，烦满热中，胸膈气塞，食不化。一名跳铁。今注∶解在钱精条。
图经文具铁条。
主坚肌耐痛。
臣禹锡等谨按详定本草云∶作熟铁。日华子云∶铁，味辛，平，有毒。畏磁石、灰、炭
等，能制石亭脂毒。今注解在铁精条。
图经曰∶铁，《本经》云∶铁落出牧羊平泽及 城或析城，诸铁不着所出州郡，亦当同
处耳
。今江
南、西蜀有炉冶处皆有之。铁落者， 家烧铁赤沸，砧上打落细皮屑，俗呼为铁花是也。初
炼去矿，用以铸 器物者，为生铁。再三销拍，可以作 者，为 铁，亦谓之熟铁。以生柔
相杂和，用以作刀剑锋刃者，为钢铁。 灶中飞出如尘，紫色而轻虚，可以莹磨铜者，为铁
精。作针家磨 细末，谓之针砂。取诸铁于器中，水浸之，经久色青沫出，可以染皂者为铁
浆。以铁拍作段片，置醋糟中，积久衣生刮取之，为铁华粉。入火飞炼者，为铁粉。作铁华
粉自有法，文多不载。诸铁无正入丸散者，唯煮汁用之，华粉则研治极细，合和诸药。又马
衔、秤锤、车辖及杵、锯等，皆烧以淬酒用之，刀斧刃磨水作药使，并俗用有效，故载之。
别说云∶谨按铁浆即是以生铁渍水服饵者。日取饮，旋添新水。日久铁上生黄膏，则力
愈胜，令人肌体轻健。唐太妃所服者，乃此也。若以染皂者为浆，其酸苦臭涩安可近，况为
服食也。
Salty in flavor, neutral in nature, non-toxic. It primarily calms the mind and spirit (An Xin Shen), strengthens bone marrow (Jian Gu Sui), eliminates various diseases, whitens the complexion, moistens the skin, and makes one ageless, robust, and able to eat well. Long-term consumption causes the body to become heavy, obese, and dark; when combined with other herbs, each has its specific indications. The preparation of iron powder involves flying and refining methods, which are too numerous to record here. People often take scrap iron, grind it into filings, and fly-refine it to increase its weight; true steel does not behave this way. The so-called "needle sand" (Zhen Sha) is sold by market vendors who mistakenly grind iron into filings, mix them with sand, and fly-refine them into powder; even experts in flying and refining cannot distinguish them. (Iron powder made from steel is superior. Attached here.)
The *Tu Jing* records details under the entry for Iron.
Pungent and sweet in flavor, neutral in nature, non-toxic. It treats wind-heat, malignant sores, ulcers, carbuncles, scabs, and scabies; qi stagnation in the skin; clears heat from the chest and diaphragm; treats anorexia; stops irritability; and removes black spots. Also known as Iron Liquid (Tie Ye). It can be used to dye hair black. It grows in Pingze of Muye, or in Fen City or Xi City. It can be harvested at any time.
Minister Yuxi et al. note according to Ri Hua Zi: Iron Liquid treats heart palpitations due to evil influences, all kinds of venomous snake and insect bites, as well as wounds from silkworms and lacquer; intestinal wind and hemorrhoids; prolapse of the rectum; epidemic febrile diseases causing mania; and can also be used to dye beard and hair. Current annotation: Explanation found under the entry for Iron Essence (Tie Jing).
The *Tu Jing* records details under the entry for Iron.
Steel (Gang Tie)
Sweet in flavor, non-toxic. It treats metal wounds (Jin Chuang), irritability and fullness, internal heat, qi obstruction in the chest and diaphragm, and indigestion. Also known as Jumping Iron (Tiao Tie). Current annotation: Explanation found under the entry for Coin Essence (Qian Jing).
The *Tu Jing* records details under the entry for Iron.
It primarily strengthens muscles and increases pain tolerance.
Minister Yuxi et al. note according to the Detailed Determinations of Bencao: Refers to the making of wrought iron. Ri Hua Zi says: Iron, pungent in flavor, neutral in nature, toxic. It fears magnetite, ash, and charcoal, etc., and can counteract the toxicity of Shitingzhi. Current annotation: Found under the entry for Iron Essence (Tie Jing).
The *Tu Jing* states: Iron, the *Ben Jing* states: Iron Lu falls from Pingze of Muye, or from Fen City or Xi City. For various irons whose origin provinces are unknown, they should likely be from the same place. Currently, wherever there are smelting furnaces in Jiangnan and Western Shu, they are available. Iron Lu refers to the fine skin flakes struck off an anvil when people burn iron until red-hot and boiling, commonly called Iron Flowers. Iron that is initially smelted to remove slag and used for casting vessels is raw iron (Sheng Tie). Iron that undergoes repeated smelting and hammering and can be forged into utensils is wrought iron (Shu Tie), also called forged iron. Steel (Gang Tie) is made by mixing raw and wrought iron to create blades for swords and knives. Iron Essence (Tie Jing) consists of particles flying out of the furnace like dust, purple in color, light and porous, used for polishing copper. Needle Sand (Zhen Sha) is the fine powder ground by needle makers. Iron Slurry (Tie Jiang) is obtained by soaking various irons in water for a long time until the color turns green and foam appears, which can be used to dye hair black. Iron Flower Powder (Tie Hua Fen) is scraped from pieces of iron beaten flat and placed in vinegar lees over a long period until a layer forms. Iron Powder (Tie Fen) is produced by flying and refining in fire. There are specific methods for making Iron Flower Powder, which are too numerous to record. None of the various irons are directly used in pills and powders; only decoctions are used. Iron Flower Powder is ground extremely finely and mixed with other medicines. Additionally, horse bits, scale weights, wheel hubs, pestles, saws, etc., are all heated red-hot and quenched in wine for use. Water from grinding knife and axe edges is used medicinally. These are folk remedies proven effective, hence recorded.
Bieshuo states: According to notes, Iron Slurry is made by soaking raw iron in water for ingestion. One takes a sip daily, adding fresh water as needed. After many days, a yellow paste forms on the iron, enhancing its potency, making the body light and healthy. This is what Taifei of Tang consumed. If one uses the slurry intended for dyeing hair, its sour, bitter, foul, and astringent taste would be unbearable, let alone for ingestion.