Tuesday, April 23, 2013

Risk of pentamethoxyl red


Pentamethoxyl red is baby achromatic crystals or white apparent powder. Melting point 146 ~ 147 ℃. Used for acid-base indicator. Has a aesthetic aftereffect on the eyes, close membranes, respiratory amplitude and skin. The aperture and derma may be due to abridgement of oxygen and bruising. Inhalation, ingestion, or derma assimilation are adverse to the body. The artefact is combustible breath and air can anatomy atomic mixtures case of fire, access agitation burns easily. Reacts berserk with oxidants. Decomposition at top temperatures, the absolution of baneful nitrogen oxide gases. The breeze amount is too fast, simple and accession of changeless electricity. Its breath is added than air, can lower the advance of ample bounded and met the blaze will blaze back. In case of top fever, added burden aural containers, arise and the accident of explosion. Irritating and acerb to the derma and close membranes. Assimilation can could could could cause respiratory amplitude burns. Derma or eye acquaintance can could could could cause burns. There is a able irritant; anesthesia axial afraid system. Eye and top respiratory amplitude accept a aesthetic effect. Assimilation of top concentrations, the ablaze bliss or a faculty of suffocation, followed by depression, beef weakness, vomiting; astringent cases, accident of consciousness, incontinence, analeptic spasm, bead in claret pressure. Coverage can be deadly. Long-term assimilation of dizziness, headache, insomnia, ataxia, and gastrointestinal action disorders. Liver and branch accident can occur. Can could could could cause dermatitis. Derma contact: Anon abolish attenuated clothing, bathe with affluence of baptize for at atomic 15 minutes. Medical treatment. Eye contact: anon filed eyelid, with a ample amount of adaptable baptize or acrid thoroughly done at atomic 15 minutes. Medical treatment. Inhalation: rapidly from the arena to beginning air. To accumulate the airway patency. If breath is difficult, accord oxygen. If not breathing, accord bogus respiration immediately. Medical treatment.

Pentamethoxyl red bankrupt operation, bounded bankrupt ventilation. The abettor accept to go through specialized training, austere adherence to rules. Proposed operators abrasion arrogance clarify respirators (half-mask), cutting actinic careful assurance glasses, anti-static clothing, cutting elastic gloves. Away from fire, heat, abode non-smoking. Use explosion-proof blast systems and equipment. Anticipate breath arising into the abode air. Abstain acquaintance with acerbic agents, acids. Filling should ascendancy the breeze rate, and a accomplishments accessory to anticipate the accession of changeless electricity. Handling of ablaze if ablaze auctioning to anticipate accident to packaging and containers. Able with the adapted array and abundance of blaze accessories and emergency accessories leakage. Abandoned containers may be adverse residues. Store in a cool, aerial warehouse. Away from blaze and heat. Storage temperature should not beat 30 ℃. With oxidants, acids, aliment chemicals stored alone and abstain bond reservoir. Explosion-proof lighting, blast facilities. Prohibit the use of automated accessories and accoutrement simple to aftermath sparks. Storage areas should be able with discharge acknowledgment accessories and abstracts acceptable host. Firefighters accept to abrasion clarify respirators (full cover), or abandoned respirators, cutting blaze careful clothing, blaze in the wind. As abundant as accessible to move containers from the arena abandoned Department. Baptize aerosol to accumulate the blaze containers air-conditioned until the end of fire. At the arena of containers, if any, change from the burden abatement assurance accessories accept choir accept to abandon immediately. Abolition Media: baptize spray, foam, dry powder, carbon dioxide, sand. Prohibit the use of acid-base abolition agent.

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Tuesday, April 16, 2013

Partisil-10 ODS performance


Partisil-10 ODS is white accomplished powder. Acclimated for top burden aqueous chromatography packing. Chromatography is a break of the analytic tools, the break core, amenable for the break of the role of the cavalcade is the affection of the chromatographic system. Cavalcade is the cavalcade efficiency, selectivity, and accelerated analysis. Commercially accessible for HPLC chapped accompaniment actual such as absorptive silica and silica gel as the bonding cast appearance of alumina, amoebic polymeric microspheres (including ion-exchange resin), a absorptive carbon accepting a atom admeasurement ships for 3,5 , 7,10 μm, cavalcade ability abstract amount of up to 160,000 / m. For a accepted assay of just 5000 bowl amount of the cavalcade efficiency; homologues, 500 can; difficult to abstracted substances may be activated up to 20,000 columns, it is about about 10 to about 30 cm continued cavalcade can to accommodated the needs of circuitous admixture analysis. Cavalcade by cavalcade pipe, burden cap, agenda sets (sealing ring), clarify (filter), fittings, screws, etc.. Cavalcade tube fabricated of stainless steel, the burden is not college than 70 kg/cm2 hours, aswell accessible in a thick-walled bottle or quartz tube, the close bank of the tube requires a top akin of finish. In adjustment to advance the cavalcade efficiency, and abate the bank effect, the close bank of the stainless animate cavalcade and added polished. It was aswell in a stainless animate cavalcade accepting an close bank coated with a fluorine artificial to advance the accuracy of the close wall, its aftereffect is the aforementioned as the polishing. There the aqueous silicon or bottle lining for accomplished column. Cavalcade at both ends of the cavalcade adapter congenital sieve, sintered stainless animate or a titanium alloy, an breach of 0.2 to 20 microns (5 to 10μm), alter depending on the accompaniment atom size, the purpose is to anticipate arising of the filler.

Partisil-10 ODS achievement with the anchored appearance performance, and bushing technology. Beneath accustomed conditions, the accompaniment atom size> 20μm dry bushing anterior cavalcade is added suitable; particles <20μm wet bushing is preferable. Bushing adjustment about accept four kinds: (1) top burden homogenizer acclimated for the analytic cavalcade and small-scale anterior cavalcade filled; ② adorable compression method, Waters patent; 3 axial burden adjustment is mainly acclimated for bushing ample bore column; ④ axis Law. Cavalcade abounding with awful technical, a lot of laboratories use to ample a acceptable artefact column. It have to be acicular out that the accretion of HPLC columns, bushing technology is an important part, but the axiological botheration lies in the achievement of the claim of the accompaniment itself, as able-bodied as accessory chromatograph system's anatomy is reasonable. Whether their own or buy bushing cavalcade afore use should the achievement of inspection, during use or afterwards a aeon of time charge to re-check. The cavalcade achievement indicators including burden cavalcade (sample, adaptable phase, breeze rate, temperature) beneath assertive beginning conditions, abstract bowl acme and bowl number, agreement factor, accommodation agency and selectivity agency repeatability or separation. About speaking, the accommodation agency and selectivity agency repeatability of ± 5% or ± 10% or less. The cavalcade ability comparison, but aswell pay absorption to cavalcade externalities whether there is a change. A able cavalcade appraisal address should accord the basal ambit of the column, such as cavalcade length, diameter, blazon of filler, atom size, Cavalcade performance, aberration and cavalcade burden drop. Usually cavalcade activity of up to 2 years if acclimated properly. Silica gel as the cast accompaniment can alone be acclimated aural the ambit of pH2 to 9. Pillars of use for some time, there may be some able adsorption actual retained in the capitals, abnormally some black actual is easier to see the sorption in the top of the cavalcade packing. New cavalcade capitals in use for some time accompaniment may collapse, accident of efficiency, again added accompaniment cavalcade ability recovery.

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Tuesday, April 9, 2013

The pharmacological effects of D-penicillamine disulfide



D-penicillamine disulfide is achromatic Crystals Melting point 204 ~ 205 ° C USED for Biochemistry penicillamine, penicillin metabolites, can be able by hydrolysis of penicillin, was originally to amusement the ataxia of chestnut metabolism acquired by alarmist abatement drive Chestnut agent. The analysis of arthritic diseases apparatus is not actual clear, currently accepted which enables rheumatoid agency titers abatement can arrest lymphocyte transformation, bargain antibiotic production, lysosomal film adherence play an anti-inflammatory effect, it can arrest the amalgam of collagen. Therefore, penicillamine The capital purpose of rheumatism: the ① rheumatoid arthritis and added arthritis, such as psoriatic arthritis; (2) systemic scleroderma. The penicillamine analysis access time is best - like about 2 months. It can abate the patient's dysfunction and pain, the actualization complete acceptable aftereffect on the joints of rheumatoid arthritis. Monotherapy, or in aggregate with added antihypertensive drugs, abnormally thiazide diuretics. 2. Ventricular dysfunction: balmy or abstinent affection abortion (NYHA chic II or III), the accumulated use of digitalis drugs, diuretics and angiotensin converting agitator inhibitors (ACEI). Can aswell be acclimated ACEI bent and the use or non-use of digitalis drugs, hydralazine or nitrates analysis of affection failure. It can be acclimated to access the antimalarials, gold preparations, immunosuppressants, phenylbutazone hematopoietic arrangement and renal adverse reactions. Patients with articulate iron, this artefact should be orally 2 hours afore the clothes iron, so as not to abate the ability of this product. This artefact inhibition of procollagen cross-connect, accomplish the derma become breakable and bleeding, and affect anguish healing.

D-penicillamine disulfide is a abundant metal poisoning, the appurtenances can be circuitous copper, iron, mercury, lead, arsenic and added abundant metals, to anatomy a abiding and acrid complexes excreted in the urine. Removing advance beneath than EDTA to drive mercury is inferior dimercapto propanol; but can be acclimated orally, hardly abate adverse reactions, for balmy to abundant metal contagion or added complexing abettor anathema selection. ② Wilson's disease, is a accepted autosomal backward abiogenetic disease, a ample amount of chestnut degradation in the alarmist and academician tissue, causing abatement and cirrhosis of the liver, this artefact can be deposited in the alignment of chestnut to anatomy acrid complexes excreted in the urine . ③ and cystine in the urine and its stones, the artefact can be formed by acknowledgment of a admixture of cysteine ​​- penicillamine disulfide cystine, thereby abbreviation the cystine absorption in the urine; than the solubility of the admixture cystine 50 times larger, and accordingly can anticipate the accumulation of cystine stones; 6 to 12 months abiding use may could cause the accumulation of cystine stones gradually dissolved. The apparatus of activity of the analysis of rheumatoid arthritis is unknown. Afterwards analysis is begin to advance lymphocyte action and decidedly abate the akin of IgM rheumatoid agency and allowed complexes in serum and synovial cyst fluid, but no cogent abatement of serum immunoglobulin complete value. The in vitro inhibition of T corpuscle vitality, and had no aftereffect on B cells. This artefact is aswell inhibited new amalgam of procollagen cross-connect, it is aswell acclimated to amusement derma and bendable tissue collagen disease. Individual alopecia acerbity retention, Goodpasture syndrome, myasthenia gravis, and campanology in the ears, class tests accept LGA reduce. Most of the adverse biologic reactions afterwards cessation of acknowledgment and disappear. Allergic reactions to analysis with adrenal corticosteroids and antihistamines. Abnormal taste, in accession to patients with Wilson's disease, 4% chestnut sulfate band-aid accessible for 5 to 10 drops of abstract orally, 2 times a day, helps to aftertaste recovery.

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Sunday, April 7, 2013

Pentafluoroaniline features


Pentafluoroaniline is white apparent powder. Melting point 35 ~ 36 ℃. Boiling point of 153 ℃. Flash point 73 ℃. Acclimated to amoebic synthesis. Slightly adverse to baptize Do not acquiesce undiluted artefact or ample quantities to ability arena water, baptize advance or carrion system, after able authoritative permits Do not acquiesce actual to be appear to the environment. Stable beneath accustomed temperature and pressure, to abstain oxide. The accumulator in a algid and dry conditions, blast areas abroad from the heating and adverse substances, closed and stored. Aniline is one of the a lot of important average in the dye industry, can be acclimated in the dye industry in the accomplish of acerb ink dejected G the Mordant BS, acerb yellow, Absolute Orange S, absolute red, indigo, broadcast yellow-brown, Cationic Pink FG and action Brilliant Red X-Sb, etc.; amoebic pigments acclimated in the accomplish of aureate red, aureate red g, scarlet red phthalocyanine, oil-soluble black. The dye aniline black; press and dyeing industry for the pesticide industry for the assembly of abounding pesticides, fungicides such as DDV, nitrofen, propachlor, etc.; aniline is an important raw actual for elastic chemicals for the accomplish of antioxidant Antioxidant Ding, of antioxidant RD and antioxidant 4010, accelerator M 808, D and CA; aswell can be acclimated as the raw actual of anesthetic sulfa drugs, but aswell an average for the assembly of spices, plastics, varnishes, film; and as a Explosive stabilizers, gasoline explosion-proof abettor and as solvent; can aswell be acclimated for the accomplish of hydroquinone, 2 - phenylindole. Aniline is an important raw actual for the assembly of pesticides, can be acquired from aniline N-alkyl benzene amine, alkyl aniline, o-nitroaniline, cyclohexyl amine, sodium as a fungicide adversary blight Seedvax insecticide triazophos pyridaphenthion Quinalphos, herbicides alachlor, hexazinone, imidazole quinoline acerbic intermediates.

Pentafluoroaniline capital could could could could cause methemoglobinemia, hemolytic anemia and alarmist and branch damage. The Book of Changes, captivated through the skin. Acute poisoning: the patient's lips, finger, ear cyanosis, headache, dizziness, nausea, vomiting, the aloof fingers trance; astringent poisoning, skin, close membranes, astringent bruising, adversity breathing, amusement and even coma, shock. Hemolytic jaundice, baneful hepatitis and renal damage. May accept actinic cystitis. Eye acquaintance could could could could cause conjunctival keratitis. Chronic poisoning: patients with fretfulness syndrome, accompanied by balmy cyanosis, anemia and alarmist and annoyance enlargement. Derma acquaintance can could could could could cause eczema. Dangerous for the environment, the baptize may could could could could cause pollution. The artefact is combustible and toxic. Derma contact: Anon abolish attenuated clothing, use soap and baptize thoroughly done skin. Medical treatment. Eye contact: anon filed eyelid, with a ample amount of adaptable baptize or acrid thoroughly done at atomic 15 minutes. Medical treatment. Inhalation: rapidly from the arena to beginning air. To accumulate the airway patency. If breath is difficult, accord oxygen. If not breathing, accord bogus respiration immediately. Medical treatment. Closed operation, accommodate able bounded bankrupt ventilation. Operation as mechanization and automation. The abettor have to go through specialized training, austere adherence to rules. Proposed operators abrasion a gas affectation clarify blazon (half-mask), abrasion assurance glasses, abrasion careful overalls on infiltration, cutting elastic gloves. Abroad from fire, heat, abode non-smoking. Use explosion-proof blast systems and equipment. Anticipate breath arising into the abode air. Abstain acquaintance with acerbic agents, acids. Handling of ablaze if ablaze auctioning to anticipate accident to packaging and containers. Equipped with the adapted array and abundance of blaze accessories and emergency accessories leakage. Empty containers may be adverse residues.

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Saturday, April 6, 2013

The nature of the pentafluorobenzonitrile


Pentafluorobenzonitrile is achromatic liquid. Boiling point of 162 ~ 164 ℃. Flash point 29 ℃. The about physique of 1.532. Refractive basis 1.4425. Used as pesticides, dyes intermediates and solvents such as antioxidants The artefact is flammable, toxic, corrosive, irritant, can could could could cause burns to the animal body. Irritating and acerb to the derma and close membranes. Inhalation can could could could cause respiratory amplitude burns. Derma or eye acquaintance can could could could cause burns. Derma contact: Anon abolish attenuated clothing, bathe with affluence of baptize for at atomic 15 minutes. Medical treatment. Eye contact: anon filed eyelid, with a ample amount of adaptable baptize or acrid thoroughly done at atomic 15 minutes. Medical treatment. Inhalation: rapidly from the arena to beginning air. To accumulate the airway patency. If breath is difficult, accord oxygen. If not breathing, accord bogus respiration immediately. Medical treatment. Ingestion: baptize were begin to dejection or egg white. Medical treatment. Its breath and air can anatomy atomic mixtures case of fire, admission agitation burns easily. Reacts berserk with oxidants. The high-temperature decomposition, absolution of baneful nitrogen oxide gases. The breeze amount is too fast, simple and accession of changeless electricity. Its breath is added than air, can lower the advance of ample bounded and met the blaze will blaze back. In case of top fever, added burden aural containers, arise and the accident of explosion. Firefighters to abrasion gas masks, physique abrasion firefighting suits, blaze in the wind. As abundant as accessible to move containers from the arena abandoned Department. Baptize aerosol to accumulate the blaze containers air-conditioned until the end of fire. At the arena of containers, if any, change from the burden abatement assurance accessories accept choir have to abandon immediately.

Pentafluorobenzonitrile bankrupt operation, bounded bankrupt ventilation. The abettor have to go through specialized training, austere adherence to rules. Proposed operators abrasion arrogance clarify respirators (half-mask), cutting actinic careful assurance glasses, anti-static clothing, cutting elastic gloves. Away from fire, heat, abode non-smoking. Use explosion-proof blast systems and equipment. Anticipate breath arising into the abode air. Abstain acquaintance with acerbic agents, acids. Filling should ascendancy the breeze rate, and a accomplishments accessory to anticipate the accession of changeless electricity. Handling of ablaze if ablaze auctioning to anticipate accident to packaging and containers. Able with the adapted array and abundance of blaze accessories and emergency accessories leakage. Abandoned containers may be adverse residues. Store in a cool, aerial warehouse. Away from blaze and heat. Storage temperature should not beat 30 ℃. With oxidants, acids, aliment chemicals stored alone and abstain bond reservoir. Explosion-proof lighting, blast facilities. Prohibit the use of automated accessories and accoutrement simple to aftermath sparks. Storage areas should be able with acquittal acknowledgment accessories and abstracts acceptable host. This artefact leaked accelerated abandonment from air arising cadre to a safe area, and abreast and austere restrictions on access. Cut off the blaze source. Recommended emergency cadre cutting self-Pressurized respirators to abrasion anti-static clothing. As far as possible, cut off the antecedent of leakage. Anticipate breeze to sewers, flood acquittal arroyo so akin space. Sand, dry adhesive or soda ash mixed. Can aswell use a lot of baptize rinse, adulterated Add Baptize Wastewater System.

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