HEXAMINE mainly used plastic resin and a curing agent , a catalyst and a blowing agent aminoplast , rubber vulcanization accelerator ( accelerator H), shrink and the like textile .
HEXAMINE organic synthesis of raw materials for the production of chloramphenicol in the pharmaceutical industry .
HEXAMINE used as a disinfectant of the urinary system , which itself has no antibacterial effect on Gram-negative bacteria effectively . 20% of its solution for the treatment of underarm odor , sweaty feet , tinea and so on. It is mixed with sodium hydroxide and sodium phenoxide , the masks do phosgene absorber.
Used in the manufacture of pesticides . HEXAMINE with fuming nitric acid , can be obtained highly explosive RDX , referred to as RDX.
HEXAMINE also as determination of bismuth , indium , manganese , cobalt , thorium , platinum, magnesium production, lithium, copper , uranium , beryllium , tellurium , bromide, iodide, etc. reagents and chromatography reagents.
Military fuel is used .
As a curing agent for resins and plastics , rubber vulcanization accelerator ( accelerator H), textiles shrink agent , and the system for fungicides, explosives. When medicinal, acidic urine after oral administration in case of decomposition of formaldehyde into sterilization , used for mild urinary tract infection ; outside used to treat ringworm, antiperspirant , cure underarm odor . Mixed with caustic soda and sodium phenol for gas masks as phosgene absorber.
BHT (2,6-Di-tert-butyl-4-methylphenol)
BHT (2,6-Di-tert-butyl-4-methylphenol)
GB 1900-80 This standard applies to p-cresol – isobutanol as raw materials and concentrated sulfuric acid as a catalyst, alumina as a dehydrating agent, the reaction of a di-2.6 butyl-p-cresol. Used as an antioxidant in food processing.
Structure:
MF: C15H24O MW: 220.36 (in 1977 the international atomic weight)
First, the technical requirements
1 Appearance: white crystal or crystalline powder.
2 2,6 – tert-butyl-p-cresol should meet the following requirements:
Index Name Index
Melting point, ℃ 69.0 ~ 70.0
Moisture,% ≤ 0.1
Burning residue,% ≤ 0.01
Sulfate (SO4 dollars),% ≤ 0.002
Heavy metals (as Pb),% ≤ 0.0004
Arsenic (As),% ≤ 0.0001
Free phenol (of p-cresol,)% ≤ 0.02
Azodicarbonamide Use
Different countries have different requirements on it in the United States , are ” generally recognized as safe ” food additives , flour maximum use level is 45ppm; in the UK, it is considered to cause respiratory sensitive , that its presence in the workplace may induced asthma ; in China , but also as a flour treatment agent limited use . World Health Organization believes that the limited animal experiments show that azodicarbonamide after being inhaled or ingested animal , most are not absorbed and rapidly through the feces is discharged , low acute toxicity in experimental animals , not on skin , eye and respiratory tract irritation. There is not enough research to prove azodicarbonamide on animal or human carcinogens or reproductive toxicity. But there is ample evidence that azodicarbonamide can induce asthma and other respiratory symptoms occur , may also make the skin sensitive to workers exposed to azodicarbonamide in their harmful to other systems are no studies .
However, this chemical is easier accused in three aspects affect human : including the destruction of flour vitamins, calcium absorption and impact damage to the body’s vital organs and induce cancer. Therefore , the United Kingdom , the European Union , Australia, New Zealand, Singapore and Japan have banned the use of azodicarbonamide in food .
2-Phosphonobutane -1,2,4-Tricarboxylic Acid (PBTCA) MSDS
Properties:
HEDPis an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.It can dissolve the oxidized materials on these metals’ surfaces.HEDPshows excellent scale and corrosion inhibition effects under temperature 250℃.HEDPhas good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt).HEDPcan react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore,HEDPhas good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.
The solid state ofHEDPis crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals.[1]
13Specification:
items index
Appearance Clear, Colorless to pale yellow aqueous solution White crystal powder
Active content (HEDP)% 58.0-62.0 90.0 min
Active content (HEDP·H2O)% - 98.0 min
Phosphorous acid (as PO3% 1.0 max 0.8 max
Phosphoric acid (asPO4)% 0.6 max 0.5 max
Chloride (as Cl) ppm 100.0 max 50.0max
pH (1% solution) 2.0 max 2.0 max
Density (20℃)g/cm 1.43-1.47 -
Fe，mg/L 10.0 max 5.0 max
Colour APHA (Hazen) 30.0 max -
Acetic acid % 0.5 max
Ca sequestration (mg CaCO3/g) 500.0 min
14Usage:
HEDPis used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry,HEDPis used as detergent for metal and nonmetal. In dyeing industry,HEDPis used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating,HEDPis used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually,HEDPis used together with polycarboxylic acid.[1]
15Package and Storage:
HEDPliquid: 200L plastic drum,IBC(1000L),customers’ requirement.
HEDPsolid: 25kg/bag,customers’ requirement.
Storage for ten months in room shady and dry place.
16Safety Protection:
Acidity, Avoid contact with eye and skin, once contacted, flush with water.
17Synonyms:
HEDP;HEDP(A);ETIDRONIC ACID;1-Hydroxy Ethylidene-1,1-Diphosphonic Acid; Hydroxyethylidene-1,1-diphosphonicacid(HEDP);1-HYDROXYETHYLIDENEDIPHOSPHONIC ACID;Hydroxyethylidene Diphosphonic acid(HEDP);1-hydroxy-1,1-Ethanediyl ester
Keywords:HEDP
Related Products:1-Hydroxy Ethylidene-1,1-Diphosphonic Acid(HEDP)
Monosodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid(HEDP·Na)
Potassium salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid(HEDP·Kx)
2-Hydroxyphosphonocarboxylic Acid (HPAA) Details
2-Hydroxyphosphonocarboxylic Acid (HPAA) Details
Chinese name: 2 – hydroxy phosphono acetic acid
Chinese alias: HPAA; hexyl phosphoric acid
Name :2-Hydroxyphosphonoacetic Acid
English Name: Hydroxyphosphono-acetic acid; HPA; N-HEXYLPHOSPHONIC ACID; LABOTEST-BB LT00408920; hpaa; n-Hexylphosphonicacid, min.97%; 2-Hydroxyphosphonocarboxylic Acid; 2-Hydroxy Phosphonoacetic Acid; 2-Hydroxy Phosphonic Acetic AcidStructure
CAS RN :4721-24-8
Molecular formula: C2H5O6P
Molecular Weight: 156.03
Physical and chemical properties:
Density of 1.37 (50% aq.)
Usage:
Widely used in iron and steel, petrochemical, power, pharmaceutical and other industries in the circulating cooling water system scale, corrosion, suitable for low hardness water in southern China; HPAA circulating cooling water system can be widely used in iron and steel, petrochemical, power, pharmaceutical and other industries scale, corrosion, usually paired with the zinc complex inhibitor, for low hardness water in southern China, and has a scale effect.
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) Usage
HEDP Usage
【1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) Usage】 boilers and heat exchangers scale inhibitor and corrosion inhibitor, non-cyanide plating complexing agent , soap chelating agents, metal and non-metallic cleaning agent.
[ EPA ] used as boiler water , recycled water, oil field injection water treatment scale inhibitor. Chang and poly hydroxy acids DISPERSOR complex . But also for non-cyanide plating complexing agent , dyeing industry, fixing agent, hydrogen peroxide stabilizers.
[ ] This product uses three non-cyanide plating Ingredients . Formulated into a non-cyanide copper plating solution , sodium iron on direct copper plating layer with good strength . Coating smooth , good color . Usually the amount of 60% content of 100 ~ 120 ml / L. Copper sulfate in an amount of 15 ~ 20 g / L. Also, before plating the plating immersed in 1% to 2 % solution of this product , making plating into active form , and then plating can enhance the effect.
[ Four] uses the goods for the new chlorine-free plating complexing agent , using cooling water system is doing water stable master agent from corrosion and scale effect. The product is no more than one organic phosphonate water foliation agent, the domestic production of such products as well as some of his radical species, such as amino trimethylene phosphonic acid (ATMP): [CH2PO (OH) 2] 3N and B diamine tetra methylene phosphonic acid (EDTMP) and the like. Multiple organic acid developed in the late 1960s was , after 70 years of being recognized a class of water treatment agent, occurrence of such water treatment agent foliation technology took a big step forward . Compared with the machine polyphosphates, no more acid organic chemical stability medicine aunt , not hydrolysis , resist high temperature and a small dose of both mitigate erosion and fouling performance characteristics. Is a kind of cathodic corrosion inhibitor , is a class of non- chemical equivalent inhibitors. And when other water treatment chemicals, it shows good synergistic effects. For many metal ions such as calcium, magnesium, copper , zinc and the like can chelate with excellent services and even inorganic salts of these metals , such as CaSO4, CaCO3, MgSiO3 , etc. to have a good activation , thus widely used in water treatment technology. The product is of low toxicity , LD50 for mice subcutaneously 486.4mg/kg.
[Use ] for five commonly used inhibitor concentration 1 ~ 10mg / L, as a general inhibitor concentration 10 ~ 50mg / L; generally used as cleaning agent concentration 1000 ~ 2000mg / L; usually associated with polycarboxylate type scale with the use of dispersants
Amitraz use
1 Amitraz can be used for fruit, tea leaf mite mite control of apple, citrus red mite, citrus rust mites, fleas, mites EC 1000-1500 with 20% times spray.
2 tea tea mite prevention Prevention half Tarsonemidae with amitraz effective concentration 150-200mg/kg liquid spray.
3 mite prevention vegetables eggplant, beans spider, 1000-2000 times with 20% EC amitraz liquid spray. Watermelon, melon red spider, with 20% EC 2000-3000 times spray.
4 Cotton mite prevention control of cotton spider mite, 1000-2000 with 20% EC times spray. While the cotton bollworm, pink bollworm rid of a certain role.
5 ticks and mites and other livestock in vitro mite prevention of cattle, sheep and other livestock ticks and mites processing chemicals 50-1000mg/kg. Cattle scabies 250-500mg/kg body rubbed with liquid, rinse. Environment mite 4000-5000 with 20% EC times spray. Environmental mites with 20% EC 1000 times spray.
Magnesium sulfate main purpose
Medicine
( 1 ) magnesium inhibit the central nervous system , skeletal muscle relaxation , a sedative , antispasmodic and reduce intracranial pressure and so on. Commonly used to treat seizures, eclampsia, uremia , such as tetanus and hypertensive encephalopathy . More in 10 ml of 10% magnesium deep intramuscular or diluted with 5 % glucose 2% to 2.5% of a solution of the slow drip . It should be noted direct intravenous or intramuscular injection of large doses of magnesium is very dangerous , usually a maximum of 25% magnesium sulfate with 15 ml can. Should be used to observe the patient’s breathing and blood pressure , slow knee reflex is an important sign of a sufficient amount of magnesium ions .
( 2 ) Magnesium has an extremely important role in the metabolism of sugar and a protein . Child growth and development period of time if there is indigestion and vitamin D, magnesium salt should be added .
( 3 ) having a plurality of magnesium potassium similar physiological functions. Due to the lack of clinical manifestations of magnesium and potassium similar, so magnesium deficiency is often easily overlooked. When potassium and when potassium after no improvement of symptoms , you should first take into account the possibility of magnesium deficiency , so in order to make timely corrective hypomagnesemia . Thus , long-term infusion of the patient , at the same time pay attention to the potassium magnesium supplementation . Plus 1 g daily infusion of magnesium sulfate to prevent the occurrence of hypomagnesemia .
( 4 ) patients with cardiac dysfunction when using digitalis drugs may be appropriate to supplement magnesium, low magnesium aggravated prevent digitalis toxicity . Treatment with magnesium tachycardia often effective clinically .
( 5 ) Oral magnesium little absorption in the intestine , so none of the above purposes. But there is good oral magnesium sulfate catharsis function, so called magnesium sulfate Epsom salts . Reaches the intestine after oral administration of aqueous magnesium sulfate solution , a certain osmotic pressure, so that water is not absorbed by the intestinal wall . Enteral retain large amounts of water , able to stimulate intestinal peristalsis and defecation. Thus magnesium sulfate for the treatment of constipation, intestinal abnormal fermentation ; with insect repellent and use, intestinal worms can easily eliminated . Can each be 5 to 20 grams of magnesium sulfate dissolved in 100 to 400 ml of warm water in the morning orally once . High concentration difficult , preferably 5% , otherwise the delay defecation .
( 6 ) magnesium can stimulate the duodenal mucosa , bile duct caused by reflex sphincter relaxation , cholecystokinin , thereby promoting gallbladder emptying, choleretic effect. For the treatment of cholecystitis and cholelithiasis , each 2 to 5 grams , 3- times daily, before meals or food orally. 50% to 33% of magnesium sulfate dilution (high concentration ), 5ml Tid.
( 7 ) magnesium sulfate can be used as gastrointestinal contrast
( 8 ) anti-inflammatory to the swelling of the goods 50% topical solution heat affected area , remove swelling anti-inflammatory effect.
Topical magnesium powder can be swelling, swelling after treatment for physical trauma, to help improve rough skin and so on.
Magnesium
Magnesium
magnesium sulfate soluble in water, not orally absorbed, aqueous solution of magnesium ions and sulfate ions are not easily absorbed by the intestinal wall , so that intestinal osmotic pressure, the water body fluids move to the intestine , so that the intestine volume increase , wall expansion , thereby stimulating intestinal afferent nerve endings caused by reflex increases peristalsis catharsis , its role in the entire bowel , so fast and strong . As a cathartic agent and duodenal drainage agent.
Intravenous and intramuscular magnesium sulfate is mainly used anticonvulsant, it can cause blood vessels to dilate , causing blood pressure to drop , due to the central inhibition and skeletal muscle relaxant effect of magnesium sulfate , antihypertensive effect, mainly used in clinical remission eclampsia, tetanus such as seizures , but also for the treatment of hypertensive crisis . Also used as a drug solution of barium salts.
Industry
For tanning , explosives , fertilizers , paper , porcelain, printing dyes, lead-acid battery industry. Magnesium and other potassium , calcium, amino acid salts , minerals such as silicates , bath salts can be used .
Agriculture
Fertilizer: In agriculture and gardening , magnesium sulfate is used to improve soil magnesium (magnesium is an essential element of the chlorophyll molecule ) , the most commonly used for potted plants , or magnesium crops, such as potatoes, roses, tomatoes, peppers and marijuana. Administration of magnesium sulfate advantage over other magnesium magnesium soil amendments ( such as dolomitic lime ) is its high solubility.
Feed: feed grade magnesium as magnesium supplement feed processing . Magnesium is involved in osteoblast animal body and muscle contraction process indispensable factor is the animal in vivo activator of many enzymes , the body of the animal ‘s metabolism and nerve function plays an extremely important role. If the animal body magnesium deficiency , metabolism and can cause neurological disorders, feeding disorders, affect animal growth and development, and even lead to death
Use of hydrogen peroxide
The use of hydrogen peroxide for medical , military and industrial use are three daily disinfection of the medical hydrogen peroxide, hydrogen peroxide can kill intestinal bacteria of medical , pyogenic bacteria, pathogenic yeasts , generally used for surface disinfection . Oxidation with hydrogen peroxide , but the medical hydrogen peroxide concentration equal to or less than 3% , wiping the wound surface , there will be a burning sensation , the surface is oxidized to white and fizzy , wash with water can, over 3-5 minutes restore the original color .
Chemical industry for the production of sodium perborate , sodium percarbonate, peracetic acid , sodium chlorite, sulfur dioxide and other materials urea , tartaric acid , vitamins and other oxidants. The pharmaceutical industry as a bactericide , disinfectant, and the production of pesticides and 40l thiram antimicrobial oxidants . Cotton fabric dyeing industry as a bleaching agent , restore hair color after dyeing agent . For removing iron and other heavy metal salts , or the production of other compounds . Also used in electroplating solution, inorganic impurities can be removed to improve plating quality. Also used wool, silk , fur , feathers, ivory , bristles , pulp , fat bleaching . High concentrations of hydrogen peroxide can be used as rocket fuel power .
Civil : Handle Kitchen sewer smell,
To the pharmacy to buy hydrogen peroxide plus water plus detergent down the drain , can decontamination, disinfection, sterilization ;
3% hydrogen peroxide ( medical grade ) available wound disinfectant ;
[ 5 ] In the laboratory preparation of hydrogen peroxide can be used for production of oxygen , fast and convenient , but the high cost , the preparation should not be used in industrial or large scale preparation .
The main purpose of Sodium sulfite anhydrous
1 , the chemical industry for the manufacture of sodium sulfide sodium silicate and other chemical products .
2, the paper industry for the manufacture of kraft pulp cooking when agents .
3 , made of soda glass industry to replace the co- solvent.
4 , the textile industry for the deployment of Vinylon spinning coagulant.
5, for the non-ferrous metallurgy , leather and so on.
6 ,Sodium sulfite anhydrous used for making sodium sulfide , pulp , glass, water glass , enamel , also used as laxatives and barium salt poisoning antidotes . Is a byproduct of the manufacture of hydrochloric acid and sulfuric acid with salt when . For the manufacture of sodium sulfide , sodium silicate on the chemical . Laboratory for wash barium salt . Preparation for the industry to take NaOH and H ₂ SO ₄ raw materials , but also for paper, glass , printing and dyeing , synthetic fiber , leather and so on. Sodium in an organic synthesis laboratory of the most commonly used treatment desiccant.
7 Sodium sulfite anhydrous mainly used as synthetic detergent filler. Paper industry for cooking agent when manufacturing kraft pulp . Glass industry to replace soda . The chemical industry for the manufacture of sodium sulfide , sodium silicate raw materials and other chemical products . The textile industry for the deployment of Vinylon coagulating bath . The pharmaceutical industry as laxatives . Also used in non-ferrous metallurgy , leather and so on.
8 , so that the hydration products sulphoaluminate generate faster , thereby speeding up the rate of cement hydration and hardening . Sodium content of cement quality is generally 0.5 % to 2% , can improve the early strength of concrete by 50% to 100%, 28 days to improve the strength and sometimes , sometimes lower , increase rate of about 10% , with the type of cement , curing conditions its content varies . Also used as synthetic detergent filler , but also for the paper industry , glass industry, chemical industry, textile industry and pharmaceutical industry.
9 , Sodium sulfite anhydrous used as analytical reagents, such as dehydration, digestive catalyst fixed nitrogen , atomic absorption spectroscopy interference inhibitors. Also used in the pharmaceutical industry .
10 , for the chemical, paper and glass , dyes, printing and pharmaceutical industry, in the manufacture of synthetic fibers , leather , non-ferrous metallurgy , enamel , etc. There are also applications , also used as an additive in detergents and soaps .
11 , Sodium sulfite anhydrous can be used as a buffer to stabilize the sulfate zinc ph value of the bath .