Feed grade anhydrous sodium sulfate is white fine crystal or powder, soluble in water, hygroscopic, odorless and non-toxic. It is widely used in feed and feed additives. Sodium sulfate (Na2SO4) is a nutrient additive with high feeding value. The sulfur element in sodium sulfate molecule can improve the absorption and utilization of nitrogen and other nutrients in feed. The feeding effect shows that adding proper amount of sodium sulfate in the feed can strengthen the resistance of livestock and poultry, promote the growth and production performance of livestock and poultry, accelerate the growth and development of livestock and poultry, improve the milk yield, egg yield, meat yield and wool yield, and improve the economic benefits.

飼料級(jí)無(wú)水硫酸納由芒硝礦溶解澄清，經(jīng)過(guò)反復(fù)精制處理，并嚴(yán)格控制衛(wèi)生指標(biāo)，真空精制而成。對(duì)產(chǎn)品中的鉛、砷、鐵、鋅等得金屬含量進(jìn)行嚴(yán)格控制，通過(guò)多次過(guò)濾、澄清，以降低鈣、鎂等雜質(zhì)含量，水分控制參數(shù)高于元明粉。飼料級(jí)硫酸納質(zhì)量執(zhí)行標(biāo)準(zhǔn)：Q/20764816-2.1-2007。

Feed-grade anhydrous sodium sulfate is made by dissolving and clarifying mirabilite ore, repeatedly refining, strictly controlling sanitary indicators, and vacuum refining. The content of lead, arsenic, iron, zinc and other metals in the product is strictly controlled. Through multiple filtration and clarification, the content of calcium, magnesium and other impurities is reduced. The moisture control parameter is higher than that of sodium sulfate. Executive standard for feed grade sodium sulfate quality: Q/20764816-2.1-2007.

中文名稱(chēng)（別稱(chēng)）：元明粉

Chinese name (alternate name): sodium sulfate

CAS No.： 7757-82-6

CAS No.： 7757-82-6

分子式： Na2SO4

Molecular formula: Na2SO4

分子量： 142.04

Molecular weight: 142.04

藥用價(jià)值

Medicinal value 

禁忌：若胃虛實(shí)熱者禁用。

Contraindications: forbidden if the stomach is deficient and hot.

性味：辛甘而冷。

Sexual taste: sweet and cold.

功能：去胃中之實(shí)熱，蕩腸中之宿垢，潤(rùn)燥破結(jié)，消腫明目。

Function: remove excess heat in the stomach, dissipate persistent dirt in the intestines, moisten dryness and break knots, and reduce swelling and brighten the eyes.

炮制：樸硝煎化，同萊菔煮，再用甘草煎入罐，火煅，以去其咸寒之性，陰中有陽(yáng)，性稍和緩，大抵用代樸硝。

Processing: boiled with radish, then boiled with licorice in a pot and calcined with fire to remove its salty and cold nature. There is yang in yin, and the nature is slightly gentle, which can be used as a substitute.

配伍：俱忌苦參。

Compatibility: bitter ginseng is forbidden.

備注：(1)「消腫明目」：血熱去則腫消而目明。

Remarks: (1) "Reduce swelling and brighten the eyes": if the blood heat is gone, the swelling will disappear and the eyes will brighten.

(2)昂按瀉痢不止用大黃元明粉以推蕩之而瀉痢反止，蓋宿垢不凈疾終不除，經(jīng)所謂通因通用也。

(2) Ong press diarrhea not only uses rhubarb sodium sulfate to push the diarrhea to stop, but also covers the dirt and does not clean the disease, which is also called universal.

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