Tetramethylguanidine

Zouping Jinxing Chemical Co., Ltd. yog ib qho ntawm cov ua lag luam thiab cov muag khoom ntawm tetramethylguanidine hauv Suav teb. Yog tias koj yuav mus rau cov lag luam wholesale bulk tetramethylguanidine ua nyob rau hauv Suav teb, txais tos kom tau txais cov qauv dawb los ntawm peb lub hoobkas. Tag nrho cov khoom customized yog nrog cov khoom zoo thiab tus nqi qis.

Cov tsos mob: Tsis muaj xim rau cov kua roj daj me ntsis (APHA Tsawg dua lossis sib npaug li 150)
Melting point: Tsawg dua los yog sib npaug rau -30 degree
Kub taw tes: 160-162℃(kem cua siab), 52-54℃/ 1.47 kPa (11 mmHg)
Qhov ceev: 0.916-0.918 g / cm³ (20 degree)
Refractive index: n²⁰ᴅ ≈ 1.469
Flash point: 60-65℃(kaw khob, approx . 140 ℉); Flammable kua (GHS Qeb 3)
Vapor siab: kwv yees li . 0.2 mmHg (0.27 hPa) ntawm 20 degree; tsawg volatility
Solubility: Ua tiav miscible nrog dej; miscible nrog methanol, ethanol, acetone, toluene, DMF, thiab DMSO; LogP ≈ -0.49
pKa: kwv yees pKa hauv dej 15.2 ± 0.7, feem ntau suav tias tus nqi 13.6 (siab dua hauv DMSO); pH ntawm 0.5% aqueous tov ≈ 12.7
Dielectric qhov tsis tu ncua: Kwv yees . 23.1

Pharmaceutical synthesis: Solubilizer / carboxyl tiv thaiv tus neeg sawv cev rau cephalosporins (xws li cefradine, cephalexin, cefoperazone); dissolves 7-ADCA, 7-ACA, thiab 6-APA; enables hlau-dawb catalytic condensation (hloov hlau puag)
PU catalyst: Catalyzes isocyanate-hydroxyl / dej tshuaj tiv thaiv nyob rau hauv hloov pauv thiab nruj polyurethane foams; muab qhov sib npaug zoo ntawm gelation thiab tshuab, nrog cov ntxhiab tsw qis dua tertiary amines
General -Lub hom phiaj lub hauv paus rau cov organic synthesis: Michael ntxiv, esterification/transesterification, amidation, dehydrohalogenation, glycosylation (nyob rau hauv carbohydrate chemistry), thiab benzoylation ntawm alcohols (siab selectivity)
Epoxy curing accelerator, textile leveling agent (nylon/wool), ionic kua precursor

Toxicity: Tsawg rau nruab nrab toxicity; Qhov ncauj LD₅₀ (rat) ≈ 1.6 g/kg (H302: Teeb meem yog nqos).
Corrosivity: Daim tawv nqaij / Qhov muag Qeb 1A corrosive (H314); kev sib cuag ntawm daim tawv nqaij ua rau kub hnyiab, qhov muag qhov muag yuav ua rau muaj kev puas tsuaj mus tas li; tej zaum yuav corrosive rau hlau (H290).
GHS: Kev phom sij; H226 (Flammable), H290 (Corrosive to metals), H302 (Ham phom yog nqos), H314 (Ua rau tawv nqaij kub hnyiab thiab qhov muag puas).
Cia thiab Thauj: UN 2920, Chav Kawm 8 (PG II); khaws cia hauv qab daim pam nitrogen hauv qhov txias, zoo- qhov chaw cua (tsawg dua lossis sib npaug li 30 degree), cais tawm ntawm cov kua qaub muaj zog, muaj zog oxidizers, thiab CO₂; hnav alkali- hnab looj tes tiv thaiv thiab tsom iav kev nyab xeeb.

Cim npe nrov: Tuam Tshoj tetramethylguanidine manufacturers, lwm tus neeg, Hoobkas