lithium-sulfate-monohydrate

This product is Lithium sulfate monohydrate, with the chemical formula Li2SO4·H2O, molecular weight 127.95, and CAS number: 10102-25-7 appears as white crystals, odorless and tasteless, insoluble in alcohol but readily soluble in water. It is stable in air and features low impurities and stable performance. The product is mainly used in the manufacture of high strength and special glass, such as solar panels and battery with ion conductive glass); Ceramic additives, regulating viscosity and enhancing product performance; Cement additive, accelerating the setting and hardening process; Analytical reagents, pharmaceutical raw materials and fireworks manufacturing. Ensure stable product performance and good batch consistency.

2. No single reference standard, the current industry water lithium sulfate standards, test method (GB/T 11064.16 2023 "lithium hydroxide, lithium chloride, lithium carbonate, single water chemical analysis method part 16: Calcium, magnesium, copper, lead, zinc, nickel, manganese, cadmium, aluminum, iron The determination of sulfate radical content in inductively coupled plasma atomic emission spectrometry, GB/T 6682 water analysis laboratory specifications and test method of GB/T 8170 said the revised rules and limit values and determine corporate internal control standards: ZJRSLS001-2025

3.1 appearance white crystalline, no visible impurities, agglomerate and different color particles, uniform fine, no peculiar smell.3.2 the main content of single water lithium sulfate (Li2SO4 · H2O) content of 99.0% or higher, or 99.9%, or 99.99% (mass fraction)
3.3 impurity content for various impurities content (mass fraction) are not more than in the table below, detection method (GB/T 11064.16 2023, unit with 10 ⁻ ⁴ % level (PPM) said:
 

检测项目		2N管理指标	3N管理指标	4N管理指标	检测方法
Li2SO4*H2O含量，不小于，％		≥99.0	≥99.9	≥99.99	减量法
杂 质 含 量 不大于 ×10-4 %	Al铝	50	10	3	电感耦合等离子发射光谱法 （ICP法） 离子色谱法 （IC法）
	Ba钡	-	-	-
	Ca钙	300	50	10
	Cd镉	-	-	-
	Co钴	-	5	3
	Cr铬	-	5	3
	Cu铜	-	5	3
	Fe铁	50	10	3
	K钾	500	50	10
	Mg镁	300	50	10
	Mn锰	-	5	3
	Na钠	500	50	10
	Ni镍	-	5	3
	Pb铅	-	5	3
	Zn锌	-	5	3
	Cl-氯离子	50	20	10
	Si硅	-	50	18
水分/%		＜14.58	＜14.58	＜14.58	重量法
产品外观		白色粉末 无明显杂质	白色粉末 无明显杂质	白色粉末 无明显杂质	目视法

 

4.1 4. The test method of sampling and sample preparation randomly selected from each batch products not less than 2 package, each package, no less than 50 g samples drawn after splitting to mix 100 g, divided into two, a used to detect, save for future reference, a seal is not kept for at least six months. 4.2 appearance test under natural light, the product appearance with the naked eye observation, determine whether comply with the requirement of article 3.1. 4.4 4.3 according to according to the method of reducing impurity content of the main impurity content determination in combination with the practical situation of the company: silicon, potassium, sodium, calcium, magnesium, copper, lead, zinc, nickel, aluminum, iron, manganese, cadmium and other impurity content, according to the inductively coupled plasma atomic emission spectrometry; The contents of sulfate, chloride and fluoride were determined by ion chromatography. 4.5 physical properties determination of single lithium sulfate does not involve water, particle size distribution. Water: measured by weight-loss method, in the oven to 200 ℃, determination of weightlessness in samples.