Medicinal grade magnesium chloride hexahydrate cas7791-18-6 use

Pharmaceutical grade magnesium chloride hexahydrate cas7791-18-6 use 1, curing agent; Nutrient enhancers; Flavoring agent (combined with magnesium sulfate, table salt, dibasic calcium phosphate, calcium sulfate, etc.
); Japanese sake, etc.
; Water removal agent (for fish cakes, dosage 0.
05% ~ 0.
1%); Tissue improvers (combined with polyphosphates as elastic enhancers for surimi products
).

Because of the strong bitterness, the commonly used amount is less than 0.
1%; 2.
Wheat flour treatment agent; Dough quality improvers; Oxidizing agents; Canned fish modifier; Maltosaccharification treatment agent
.

【Check】Acidity Take 1g of this product, add 20ml of water to dissolve, and determine according to law (General 0631), the pH value should be 4.
5 ~ 7.
0
.

The clarity and color of the solution Take 2.
5g of this product, add 25ml of water to dissolve, check according to law (General 0901 and General 0902), the solution should be clear and colorless
.

Bromide Take 2.
0g of this product, put it in a 100ml measuring bottle, add water to dissolve and dilute to the scale, shake well, take 5ml with precision, put it in a 10ml colorimetric tube, add phenol red mixture solution [take ammonium sulfate 25mg, add water 235ml, 2mol/L sodium hydroxide solution 105ml and 2mol/L acetate solution 135ml, shake well, add phenol red solution (take phenol red 33mg, add 2mol/ L sodium hydroxide solution 1.
5ml, add water to dissolve and dilute to 100ml, shake well, that is, obtain) 25ml, shake well, if necessary, adjust the pH to 4.
7] 2.
0ml and 0.
01% chloramine T solution (for temporary use) 1.
0ml, mix immediately, accurately place for 2 minutes, add 0.
1mol/ L sodium thiosulfate solution 0.
15ml, diluted with water to the scale, shake well, as a test solution; take another standard potassium bromide solution (precision weighing potassium bromide 30mg dried to constant weight at 105 ° C, add water to dissolve into 100ml, shake well, precision measure 5ml, put in a 100ml measuring bottle, dilute with water to the scale, shake well, that is, obtain
.

Each 1 ml is equivalent to 10 μg of Br) 5.
0 ml, placed in a 10 ml colorimetric tube, prepared by the same method, as a control solution
.

Take the control solution and the test solution, according to the ultraviolet-visible spectrophotometry (general rule 0401), with water as a blank, measured at a wavelength of 590nm, the absorbance of the test solution shall not be greater than the absorbance of the control solution (0.
05%)
.

Sulfate Take 2.
0g of this product, check according to law (General 0802), and compare with the control solution made of 2.
0ml of standard potassium sulfate solution, it shall not be more concentrated (0.
01%)
.

Moisture Take this product, according to the moisture determination method (general rule 0832 first method 1), the moisture content should be 51.
0% ~ 55.
0%.
Aluminium salt (for the preparation of hemodialysate) Take 4.
0g of this product, add 100ml of water to dissolve, add acetic acid - ammonium acetate buffer (pH 6.
0) 10ml, as a test solution; take another standard aluminum solution (precision amount of aluminum single element standard solution, quantitative dilution of water to make a solution containing 2μg of aluminum per 1ml) 2.
0ml, add water 98ml and acetate-ammonium acetate buffer (pH 6.
0) 10ml, as a control solution; take 10ml of acetate-ammonium acetate buffer (pH 6.
0), add 100ml of water, as a blank solution
。
Respectively, the above three solutions were moved to the dispensing funnel, each added 0.
5% 8-hydroxywalin solution extracted three times (20, 20, 10ml), combined the extract, placed in a 50ml measuring flask, diluted to the scale, shaken, fluorescence spectrophotometry (general rule 0405) determination, measured at the excitation wavelength of 392nm, emission wavelength 518nm, the fluorescence intensity of the test solution shall not be greater than the fluorescence intensity of the control solution (0.
0001%)
。
Barium salt Take 1g of this product, add 10ml of water to dissolve, add 1mol/L sulfuric acid solution for 1ml, and there is no turbidity
within 2 hours.

Calcium salt Take 0.
10g of this product, add 15ml of water to dissolve, add acetic acid solution (2mol/L) 1ml, ammonium oxalate test solution 1ml, shake well, let it sit for 15 minutes, if turbid, with the standard calcium solution (precision weigh at 105 ~ 110 °C dry to constant weight calcium carbonate 2.
5g, placed in 1000ml measuring bottle, add 6mol / L acetate solution 12ml to dissolve, dilute with water to the scale, shake well; Before use, take 10ml of precision measurement, put it in a 1000ml measuring bottle, dilute it with water to the scale, shake well, that is, each 1ml is equivalent to 10μg of Ca) 10ml compared with the control liquid made by the same method, not more concentrated (0.
1%)
.

Potassium salt Take 5g of this product, add 5ml of water to dissolve, add 0.
2ml of sodium bitartrate test solution, no turbidity
within 5 minutes.

Iron salt take 2.
0g of this product, check according to law (General Rule 0807), and compare with the control solution made of 2.
0ml of standard iron solution, not deeper (0.
001%)
.

Heavy metals Take 1.
0g of this product, add 20ml of water to dissolve, add 2ml of dilute acetic acid and water to an appropriate amount to 25ml, check according to law (General 0821 First Law), containing heavy metals shall not exceed 10
parts per million.

Arsenic salt Take 1.
0g of this product, add 23ml of water to dissolve, add 5ml of hydrochloric acid, check according to law (General 0822 First Law), should comply with the provisions (0.
0002%)
.