| Content | Properties White or colorless crystals, efflorescent in air, easily soluble in water but not in organic solution. Its water solution is alkaline. PH value of 1% solution is 12.1, relative density at 1.62, melting point is 73.4℃ Uses Used as a water softening agent, cleaning agent in electroplating, color fixer in fabric dyeing and flux in enamel ware manufacturing and so on.
| ITEMS | STANDARDs | | Main contents % >=</td> | 98 | | Phosphorus pentoxide % >=</td> | 18.3 | | Chloride, as cl % =< | 0.3 | | Sodium oxide, as Na2O % =< | 15.5-19 | | Sulfate, as SO4 % =< | 0.5 | | Water insoluble % =< | 0.1 | | Hypromellose (INN), short for hydroxypropyl methylcellulose (HPMC), is a semisynthetic, inert, viscoelastic polymer used as an ophthalmic lubricant, as well as an excipient and controlled-delivery component in oral medicaments, found in a variety of commercial products. As a food additive, hypromellose is an emulsifier, thickening and suspending agent, and an alternative to animal gelatin. Its Codex Alimentarius code (E number) is E464.
| ITEMS | STANDARD | | Apperance | white to grey while,odourless,tasteless powder | | Apparent density,g/cm3 | 0.25~0.70 | | Chromotropic temperature, ℃ | 190~200 | | Carbonification temperature, ℃ | 225~230 | | Densitykg/L | 1.39 | | Relative flammability(700℃ in furnace) | 90+ | | Density,kg/L,1% solution | 1.0012 | | 5%solution | 1.0117 | | 10%solution | 1.0245 | | Refractive index | 1.336 | | Specific volume of given concentration,mL/g | 0.717~0.767 | | Surface tension,,25℃,mN/m | 44~56 | | Interfacial tension(in paraffin oil),25℃,mN/m | 18~30 | | Fel temperature,℃ | 54~70 | | Relative density | 1.29 | | Area factor(0.0025mm),m2/kg | 36.7 | | water steam,37℃,90%~100%,rh | 520 | | oxygen,24℃ | 560 | | Tensile strength,24℃,50%rh,MPa | 58.6~61 | | Elongation rate,24℃,50%rh,% | 5-10 | | UV stability,500rh | excellent | | Oil resistance | excellent | | UV light transmittance,400nm% | 82 | | 290nm% | 34 | | 210nm% | 6 | | Refractive index | - | | Softening point, ℃ | 240 | | Melting point℃ | 260 | | Carbonification temperature,℃ | 270 | | Properties White microdot powder with luster, melting point at 622℃, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca2+, Mg2+, can soften hard water, change suspension into solution, alkalescent, without causticity. Uses
Used as main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, and dispersant of suspension such as paint, kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyzer, and used in epuration of petroleum product, gum latex storage, as dispersant, solvent in metal industry and pharmaceutical industry, also widely used in gum synthesis, foodstuff industry, and poultry process.
| ITEMS | STANDARDs | | Assay (%) (Na5P3O10) | 94%MIN | | Appearance | WHITE GRANULAR | | P2O5 (%) | 57.0 MIN | | Bulk density | 0.4~0.6 | | Iron | 0.15%MAX | | Temperature rise | 8~10 | | Polyphosphate | 0.5 MAX | | PH value(%) | 9.2 - 10.0 | | Ignition loss | 1.0% MAX | | 20mesh through | >90% | | Propylene glycol alginate or PGA is an additive used mainly as a thickening agent in certain types of food. It is made from the kelp plant or from certain kinds of algae, which is processed and transformed into a yellowish, grainy chemical powder. The powder is then added to foods that require thickening. Propylene glycol alginate has been used for many years as a food preservative. Many food manufacturing companies use it in the most common household food items. Most types of gel-like foods, including yogurt, jellies and jams, ice cream, and salad dressing contain propylene glycol alginate. Certain condiments and chewing gum also contain this chemical. Some kinds of cosmetics used on the skin use this chemical as an ingredient to thicken or preserve a make-up product.
| ITEMS | STANDARD | | Appearance | White to off-white powder | | Viscosity (1%, mPa.s) | As per need | | Particle size | 95% pass 80 mesh | | Degree of esterification (%) | >= 80 | | Loss on drying (105℃, 4h, %) | =<15 | | pH (1%) | 3.0- 4.5 | | Total propylene glycol (%) | 15- 45 | | Free propylene glycol (%) | =<15 | | Ash insolubles (%) | =<1 | | Arsenic (As) | =<3 mg/kg | | Lead (Pb) | =<5 mg/kg | | Mercury (Hg) | =<1 mg/kg | | Cadmium(Cd) | =<1 mg/kg | | Heavy metals (as Pb) | =<20 mg/kg | | Total plate count (cfu/g) | =< 5000 | | Yeast & mould (cfu/g) | =< 500 | | Salmonella spp./ 10g | Negative | | E. Coli/ 5g | Negative | | 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.
Used in food, beverage industries as acidulous agent, flavoring Used in food, beverage industries as acidulous agent, flavoring agent, and preservative, also used in detergent, electric plating, and chemical industries as oxidation inhibitor, plasticizer etc.
Citric acid is an organic acid found a variety of fruits and Acidity regulators vegetables, but it is most concentrated in lemons and limes. It is a natural preservative and is also used to add an acidic (sour) taste to foods and soft drinks. In biochemistry, it is important as an intermediate in the citric acid cycle or Krebs cycle (see last paragraph) and therefore occurs in the metabolism of almost all living things. Excess citric acid is readily metabolized and eliminated from the body. Citric acid is an antioxidant. It is also used as an environmentally friendly cleaning agent.
| ITEMS | STANDARD | | Characteristic | White Crystal Powder | | Identification | Pass test | | Clarity & color of solution | Pass test | | Moisture | ≤1.0% | | Heavy Mentals | ≤10ppm | | Oxalate | ≤360PPM | | Readily carbonisable substances | Pass test | | Sulphated Ash | ≤0.1% | | Sulphate | ≤150PPM | | Purity | 99.5-100.5% | | Bactreial Endotoxin | ≤0.5 IU/MG | | Aluminium | ≤0.2PPM | | Mesh size | 30-100MESH/10-40MESH |
| 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 | |
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