| Content | Sodium metabisulfite is an inorganic compound composed of sodium, sulfur and oxygen. Its chemical formula is Na2S2O5 . It typically comes in a white, or yellowish-white crystalline powder. It easily dissolves in water, which leaves that familiar sulfur (rotten egg) smell. Sodium Metabisulfite is commonly used as a food preservative for dried foods, like potato chips, raisins and apples, as well as fruit concentrate juices. As a food product, the safe daily intake of sodium metabisulfite has been determined to be about .7 grams per kilogram of body weight. However, those with allergies to sulfites -- often exhibited by rashes, hives and wheezing - might try to steer clear of this preservative altogether. Main uses: Bleach agent (e.g.candies, cake, bamboo shoots, etc);Loose agent (e.g.bread, cracker etc);Antiseptic and germicide (e.g.fruit juice, tinned food ,brews, the cereals food is defended storage etc);Inhibitor and freshen agent (e.g.day lily, seafood, fruit and vegetable etc)
| ITEMS | Specifications | | Apperance | White or light yellow powder | | Content >=% | 96.5 | | Heavy Metals (Fe)=< % | 0.003 | | Heavy Metals( As)< % | 0.0001 | | Charity | Slightly turbid | | SO2>=</td> | 65 | | PH | 4.0-5.0 | | Heavy Metals( Pb)=< % | 0.0005 | | folic acid, also known as Vitamin B9, is an essential food ingredient in our food supply.It is a water-soluble Vitamins, which is vulnerable to ultraviolet radiation. Folic Acid can be used as a health food additive to be added in infant milk powder.
The role of feed grade folic acid is to increase the number of live animals and the amount of lactation. The role of folic acid in broiler feed is to promote weight gain and feed intake. Folic acid is one of the B vitamins, which promotes the maturation of young cells in the bone marrow, promotes growth and promotes the formation of hematopoietic factors. Folic acid has the function of promoting ovulation and increasing the number of follicles. The addition of folic acid to the sow feed is beneficial to increase the birth rate. The addition of folic acid to the laying hens can increase the egg production rate.
| ITEM | STANDARD | | Appearance | Yellow or orange crystalline powder.almostodourless | | IdentificationUltraviolet AbsorptionA256/A365 | Between 2.80 and 3.00 | | Water | ≤8.5% | | Chromatographic purity | ≤2.0 % | | Residue on ignition | ≤0.3% | | Organic volatile impurities | Meet the requirements | | Assay | 96.0~102.0% |
| Sodium Diacetate is a molecular compound of acetic acid and sodium acetate. According to a patent, free acetic acid is built into the crystal lattice of neutral sodium acetate. The acid is firmly held as is evident from the negligible odor of the product. In solution it is split off into its constituents acetic acid and sodium acetate. As a buffering agent, sodium diacetate is applied in meat products to control their acidity. Apart from that, sodium diacetate inhibits the growth of various microorganisms usually found in meat products, thus it can be used as a preservative and safeguard for food safety and shelf life extension. Moreover, sodium diacetate can be used as a flavoring agent, applied as a powdered seasoning, to impart a vinegar taste to meat products.
| Item | Specification | | Appearance | White, hygroscopic crystalline solid with an acetic odour | | Free Acetic Acid (%) | 39.0- 41.0 | | Sodium Acetate (%) | 58.0- 60.0 | | Moisture (Karl Fischer method, %) | 2.0 Max | | pH (10% Solution) | 4.5- 5.0 | | Formic acid, formates andother oxidizable (as formic acid) | =< 1000 mg/ kg | | Particle Size | Min 80% Pass 60 mesh | | Arsenic (As) | =< 3 mg/ kg | | Lead (Pb) | =< 5 mg/ kg | | Mercury (Hg) | =< 1 mg/ kg | | Heavy Metal (as Pb) | 0.001% Max |
| Hydroxy Propyl Guar Gum is a new type of low damage fracturing fluid thickener by chemical modification of guar gum, it has high viscosity, low residue, good water solubility, water and water insoluble matter which is low in oil field fracturing, damage to the sandstone reservoir is small, the rheological properties of easy control, easily from the formation of flowback, etc, mainly used as water base fracturing fluid in the oil gas well hydraulic fracturing and pre liquid in acidizing treatment, it is necessary product in high temperature deep well and low permeability reservoir fracturing thickening. Applications Hydroxy Propyl Guar Gum fracturing fluid is a kind of low damage fracturing fluid, suitable for low permeability of 30 degrees ~150 degrees of oilfield fracturing technology. Widely used in oil field fracturing, sand control, water shutoff operations.
| ITEM | STANDARD | | Appearance | A white to yellowish-white, nearly odourless powder | | Galactomannans | >= 80% | | Viscosity (1%, 2h, Brookfield DVII, #4 spindle, 20rpm) | >= 5500 mPa.s | | Viscosity(1%, 24h, Brookfield DVII, #4 spindle, 20rpm) | Min 300 mPa.s higher than viscosity recorded in 2 hours | | Particle Size | 95% Pass 200 Mesh | | pH | 5.5- 7.0 | | Moisture | 12% Max | | Protein | 5% Max | | Starch | Passes test | | Acid-Insoluble Residue | 2.5% Max | | Ash | 0.8% Max | | E.Coli/ 5g | Negative | | Salmonella/ 10g | Negative | | Mould & Yeast | =< 200 cfu/ g | | Total Plate Count | =< 1000 cfu/ g | | Citric acid is a weakorganic acid. It is a natural preservative conservative and is also used to add an acidic, or sour, taste to foods and soft drinks. In biochemistry, the conjugate base of citric acid, citrate, is important as an intermediate in the citric acid cycle, and therefore occurs in the metabolism of virtually all living things.
It is Colorless or white crystalline powder and mainly used as an acidulant, flavorant and preservative preservative in foods and beverages. It is also used as an antioxidant, plasticizer and detergent, builder.
Mainly used in the food , beverage trade as the sour flavour agent, flavoring agent, antiseptic as well as antistaling agent
1. In the food industry, Citric Acid Monohydrate uses as the drinks sour flavour agent. Mainly used in various kinds of cold drinks and for such foods production as soda, candy, biscuit, can, jam, fruit juice ,etc., also can be used as greases antioxidant;
2. In medical industry,Citric acid monohydrate is the raw materials of a lot of pharmaceuticals, such as the citric acid piperazine(lumbricide ), ferric ammonium citrate (blood tonic ), sodium citrate (blood transfusion pharmaceutical). In addition, citric acid also is used as the acidifier in many pharmaceuticals;
3. In the chemical industry, the ester of citric acid can use as the Acidity regulators to make the plastic film of food packing ;
4. In other respects, such as used in industry and civil detergent as the auxiliary agent for making nuisance free detergent; Used in the concrete as the retarder; also been widely used in electroplating, leather industry, printing ink, blue print industry,etc.
| ITEMS | STANDARD | | Appearance | Colorless crystals or white crystalline powders | | Assay | 99.5%-100.5% | | Moisture | 7.5-8.8 | | Sulphated Ash | ≤ 0.05% | | Light Transmittance | ≥97.0% | | Sulpahte | ≤150ppm | | Chloride | ≤50ppm | | Calcium | ≤75ppm | | Heavy Metal | ≤5ppm | | Iron | ≤5ppm | | Oxalate | ≤100ppm | | Readily Carbonizable | Not darker than STANDARD | | Aluminium | ≤0.2ppm | | Arsenic | ≤1ppm | | Mercury | ≤1ppm | | Lead | ≤0.5ppm | | Endotoxin of Germ | ≤0.5IU/Mg | | Tridodecylamine | ≤0.1ppm | | Product Details: | Usage | Industrial | | Grade Standard | Medicine Grade | | Physical State | Powder | | Package Type | Bottle |
L – Ascorbic Acid
Case no:50-81-7
Formula: C6H8O6
Molar mass: 176.12 g/mol
Melting point: 190 °C
Boiling point: 553 °C
Appearance:White or light yellow solid
Density :1.65 g/cm3 |
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