About M-Xylylene Diisocyanate

Name：M-Xylylene Diisocyanate
Physical properties:
Properties: Uncertain
Density d (g / mL, 25/4 ℃): 1.20
Relative vapor density (g / mL, air = 1): Not sure
Mp mp (oC): Uncertain
Boiling Point (oC, pressure) :88-90
Bp bp (oC, 1mmHg): 126
Refractive index: Uncertain
Flash point fp (oC): 174
Specific rotation (o): Uncertain
Ignition point, or ignition temperature (oC): Uncertain
Vapor pressure (kPa, 25oC): Uncertain
Saturated vapor pressure (kPa, 60oC): Uncertain
Heat of combustion (KJ / mol): Uncertain
Critical temperature (oC): Uncertain
Critical Pressure (KPa): Uncertain
Water (octanol / water) distribution coefficient values: Uncertain
Explosive limit (%, V / V): Uncertain
Lower Explosive Limit (%, V / V): Uncertain
Solubility: Uncertain

Function and Use:
Stable under normal temperature and pressure, the liquid. On wet and light sensitive. The relative density of 1.202. Boiling point of 88 ~ 90 ℃ (0.02kPa). Refractive index 1.451. Flash point 42 ℃. Flammable. Tear gas and irritating

Synthesis: protein - protein conjugate formation. Biochemical research.

Storage: This product should be sealed in argon at 4 ℃ drying stored.

Toxicological data:
1, skin / eye irritation data:
Standard Draize rabbit skin irritation test: 2 mg/24HREACTION SEVERITY: Severe
Standard Draize rabbit eye irritation test: 5 mg/24HREACTION SEVERITY: Severe
2, acute toxicity:
Mouth rat LD50: 5350 mg / kg
Mouse Mouth LD50: 840 mg / kg

Ecological data: This substance may be hazardous to the environment, the water should be given special attention

Computational chemistry data:
A hydrophobic parameter calculation reference value (XlogP3-AA): 3.4
2, the hydrogen bond donor Quantity: 0
3, the hydrogen bond acceptors: 4
4, rotatable bonds: 4
5, topological molecular polar surface area (TPSA): 58.9
6, the number of heavy atoms: 14
7, the surface charge: 0
8, Complexity: 239
9, isotope atomic number: 0
10, to determine the atomic stereocenter number: 0
11, uncertain atom stereocenter number: 0
12 to determine the chemical bond stereocenter number: 0
13, uncertain bond stereocenter number: 0
14, covalently bonded unit Quantity: 1

Safety Information:
Dangerous Transportation Code: UN 2920 8/PG 2
Hazard Symbols: Corrosive
Security identity: S16 S23 S26 S45 S36/S37/S39
Hazard identification: R10 R34 R42


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About 4-Nitro-p-terphenyl

Name:4-Nitro-p-terphenyl

Properties:

1 Properties: light yellow crystalline powder.

2 Density (g / mL, 25/4 ℃): No information available

3 Relative vapor density (g / mL, air = 1): No information available

4 Melting point (º C) :205-210

5 Boiling Point (º C, atmospheric pressure): No information available

6 Boiling Point (º C, 5.2kPa): No information available

7 Refractive index: No information available

8 Flash point (º C): 205-210

9 Specific rotation (º): No information available

10 points or spontaneous ignition temperature (º C): No information available

11 vapor pressure (kPa, 25 º C): No information available

12 saturated vapor pressure (kPa, 60 º C): No information available

13 heat of combustion (KJ / mol): No information available

14 The critical temperature (º C): No information available

15 Critical Pressure (KPa): No information available

16 oil (octanol / water) distribution coefficient values​​: No information available

17 explosive limit (%, V / V): No information available

18 Lower Explosive Limit (%, V / V): No information available

19 Solubility: Not available

Toxicological data:

Test method:

Ingestion dose: 5 mcg / plate

Test object: Bacteria - Salmonella typhimurium

Toxic Type: mutation

Toxicity: No result

Ecological data:

This substance may be hazardous to the environment, the water should be given special attention.

Molecular structure data:

1 Molar Refractivity: 81.98

2, the molar volume (m3/mol): 231.8

3, parachor (90.2K): 609.4

4, the surface tension (dyne / cm): 47.7

5, the polarization ratio (10-24cm3): 32.50

Computational chemistry data:

1, hydrophobic parameter calculation reference value (XlogP): 5.4

2, the hydrogen bond donor Quantity: 0

3, the hydrogen bond acceptors: 2

4, rotatable bonds: 2

5, topological molecular polar surface area (TPSA): 43.1

6, the number of heavy atoms 21

7, the surface charge: 0

8, Complexity: 330

9, isotope atomic number: 0

10, to determine the atomic stereocenter number: 0

11, uncertain atom stereocenter number: 0

12 to determine the chemical bond stereocenter number: 0

13, uncertain bond stereocenter number: 0

Properties and Stability:

Used and stored according to specifications will not decompose.

Storage:

Sealed in a cool dry place.

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About N,N-Dimethylquinacridone

Brief Description:
Product name: N,N-Dimethylquinacridone

N,N-Dimethylquinacridone Usage And Synthesis

N,N-Dimethylquinacridone downstream products, raw materials
Raw sodium hydride -> Dimethyl sulfate -> tosylate -> aniline -> phosphate -> tert-butanol -> polyphosphate -> 2-- methyl-1 - propanol -> 1 -1,2 - dimethoxyethane -> diethyl adipate

Physical properties:
Properties: Uncertain
Density (g / ml, 25/4 ℃): Uncertain
Relative vapor density (g / cc, air = 1): Not sure
Melting point (℃): 286 ℃ (decomposition) (lit.) than
Boiling Point (℃, atmospheric pressure): Uncertain
Boiling Point (℃, 5.2kPa): Uncertain
Refractive index: Uncertain
Flash point (℃): Uncertain
Specific rotation (O): Uncertain
Ignition point, or ignition temperature (℃): Uncertain
Vapor pressure (kPa when, 25 ℃): Uncertain
Saturation vapor pressure (kPa when, 60 ℃): Uncertain
Heat of combustion (kJ / mol): The Uncertain
Critical temperature (℃): Uncertain
Critical pressure (kPa): Not sure
Water (octanol / water) distribution coefficient values​​: Uncertain
Explosive limit (%, V / V): Uncertain
Lower Explosive Limit (%, V / V): Uncertain
Solubility: Uncertain

Molecular structure data:
1 Molar Refractivity: 98.14
2, the molar volume (m3/mol): 257.8
3, parachor (90.2K): 706.6
4, the surface tension (dyne / cm): 56.4
5, the polarization ratio (10-24 cc): 38.90

Safety Information:
Security identity: S22 S24/25


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About P-Quaterphenyl

Name:P-QUATERPHENYL
English Synonyms:
1,1 ': 4', 1'': 4'', 1'' '-Quaterphenyl; 1,1': 4 ', 1'': 4'', 1'''-Quaterphenyl; 1,1 '-Biphenyl, 4,4 '-diphenyl-; Dixenyl; p, p'-Quaterphenyl; p-Quaterpheyl; p-Tetraphenyl; Quadriphenyl

Physical Properties
Boiling Point (oC): 428 (2399pa)
Melting point (oC): 320
The relative density (d254): 1.074

Function and Use:
1 white flaky crystals. Soluble in boiling nitrobenzene, toluene, pyridine, quinoline, ethyl acetate and amyl acetate, 500 parts of boiling benzene-soluble, almost insoluble in ethanol and ether. Melting point 316 ~ 318 ℃. Boiling point 428 ℃ (2.40kPa). Maximum absorption wavelength 430nm
(2) present in the mainstream smoke.

Properties and Stability: Flashing reagents. Laser dyes.

Storage: should be sealed.

Molecular properties data:
1 Molar Refractivity: 100.02
2, the molar volume (m3/mol): 285.2
3, parachor (90.2K): 727.3
4, the surface tension (3.0 dyne / cm): 42.2
5, the polarization ratio (0.5 10-24cm3): 39.65

Computational chemistry data:
A hydrophobic parameter calculation reference value (XlogP): 7.3
2, the hydrogen bond donor Quantity: 0
3, the number of hydrogen bond acceptors: 0
4, rotatable bonds: 3
5, tautomers Quantity:
6, topological molecular polar surface area (TPSA): 0
7, the number of heavy atoms: 24
8, the surface charge: 0
9, Complexity: 308
10, isotope atomic number: 0
11, to determine the atomic stereocenter number: 0
12, uncertain atom stereocenter number: 0
13 to determine the chemical bond stereocenter number: 0
14, uncertain bond stereocenter number: 0
15, covalently bonded unit Quantity: 1

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What is P-Terphenyl?

 

Basic Information

Chinese name: terphenyl
Product Name: p-Terophenyl
Chinese Name 2:1,4 - diphenylbenzene 4 - phenyl biphenyl, right diphenylbenzene
Name 2:1,4-Terphenyl ,4-Phenyl bisphenyl, Diphenyl benzene
Molecular formula: C18H14
Molecular Weight: 230.30 [1]
CAS No. :92 -94-4
HS Code HS NO. 29029090
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Production method

Now terphenyl production in two ways:
(A) by the biphenyl nitration, reduction, acetylation, obtained acetaminophen biphenyls, and then with dinitrogen trioxide role in N-nitroso acetaminophen biphenyls, and then with benzene derived role. In this way the length of routes, operating cumbersome, complex, and the yield is low (only 8%), high cost and low quality of products and equipment corrosion serious.
(2) derived from the associated multi-benzene separation. By-product in the production of biphenyl, diphenyl contain benzene, o-diphenyl benzene, diphenyl benzene room, among other associated Triphenylbenzene and more benzene. Depending on their melting point, boiling point, and solubility, taking sublimation, washing method can be obtained. Major domestic manufacturers in Jiangsu Chemical Co., Ltd. is able to use this method to produce Dano DYNOVA terphenyl.
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Physical and chemical properties

APPEARANCE: White crystal
Flash point / ℃: 207
Boiling point / ℃: 389
Relative density (water = 1): 1.23
Melting point / ℃ :211-213
Relative vapor density (air = 1): 7.95
Solubility: soluble in hot benzene, slightly soluble in ether and carbon disulfide, very slightly soluble in ethanol and acetic acid. Insoluble in water.
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Safety and environmental protection

Terphenyl basic sound of water bodies, is a flammable solid, the human eye, skin, and respiratory tract irritation.
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Use

Terphenyl scintillator is mainly used for the production of plastic sheet, or the preparation of biphenyl liquid crystal material is one of the basic intermediates, as well as synthetic antifungal cyclic peptide (4 - carboxy-terphenyl CTP) of the basic raw material. Can also be prepared 4,4 - dicarboxy-p-terphenyl (DCTP), which is a polyamide prepared biphenyls main raw material.

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What is 1,5 - Dibromoanthracene?

Basic Information

1,5 - Dibromoanthracene
Product Code: YCY162
Chinese name: 1,5 - Dibromoanthracene
Chinese alias: 1,5 - dibromoanthracene; dibromo and triphenylmethyl; 1,5 - Dibromoanthracene
English name: 1,5-Dibromoanthracene
English Synonyms: 1,5-dibromoananthracene; 1,5-dibromo-anthracen; Anthracene ,1,5-dibromo-; ms-Dibromoanthracene
Linear Formula:

Purity: ≥ 98%
Level:
CAS Number: 523-27-3
Formula: C14H8Br2
Molecular Weight: 336.02
Edit this paragraph Performance description

Appearance Description: Yellow needle crystal. Can sublimation, oxidation generates anthraquinone. Soluble in hot benzene and hot toluene, slightly soluble in alcohol, ether and cold benzene, do not dissolve in water.
Physical parameters: Melting point :220-225 ° C (lit.)

Application:

Mainly used in organic synthesis intermediates.
Storage and transportation: cold cool dry place

Hazard statement:

Dangerous code: Xi
Hazard Class: R36/37/38
Security Level: S26-37/39

Preparation:

Anthracene bromide. Bromination reaction at room temperature, carbon tetrachloride as a solvent. 80-85% using anthracene as a raw material, add bromine half hour, 83-88% yield.


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1,8-Bis (hydroxymethyl) anthracene characteristics

1,8-Bis(hydroxymethyl)anthracene, C16H14O2, crystallized in the centrosymmetric amplitude accession P21 / n. The anthracene amount is about collapsed and shows acceptable acceding with the anthracene amount of anthracene-1 ,8-dicarboxylic acid. Anthracene-1, 8-dimethanol, C16H14O2, crystallized in the centrosymmetric amplitude accession P21 / n. The anthracene amount is about collapsed and shows acceptable acceding with the anthracene amount of anthracene-1 ,8-dicarboxylic acid. The melting point of this artefact is 217 ° C . Its abstention is not beneath than 98.0% (GC). It's the brand of EP.The blueprint is 1G. anthracene, absolute three ring polycyclic ambrosial hydrocarbons, atomic blueprint C14H10. It exists in atramentous tar. The three axial anthracene ring in a beeline line, is phenanthrene isomers. Anthracene as a achromatic cool crystals; has blue-violet fluorescence; melting point 216 ℃, baking point 340 ℃, the about body of 1.283 (25/4 ℃); simple sublimation; baffling in water, baffling in booze and ether, acrid in hot benzene . 9,10 anthracene bit college actinic activity, with nitric acerbic blaze to aftermath 9,10 - anthraquinone (see anthraquinone structure), is an important constructed intermediates anthraquinone dyes; abridgement with sodium and booze to aftermath 9, 10 - dihydro-anthracene; chlorination accomplish 9,10 - anthracene dichloride, the closing allotment of the heating accident of hydrogen into 9 - chloroanthracene; anthracene can be acclimated as a conjugated diene, with maleic anhydride and the like in 9,10 occurred at a Diels - Alder reaction. Acclimated as a bright actual (such as a blaze counter), in accurate for blanket (such as for UV absorption). For the accomplish of anthraquinone dyes. Also acclimated as pesticides, fungicides, like gasoline retarder.

1,8-Bis(hydroxymethyl)anthracene authentic non-toxic. Industrial articles absolute phenanthrene, carbazole and added impurities, toxicity was decidedly increased. Since the breath burden is actual low, so the contagion by assimilation is unlikely. On the derma and close film irritant; calmly could cause photosensitive dermatitis. Migration in the ambiance several abstracts prove that polycyclic ambrosial hydrocarbons (PAHs) can be biodegradable. Low atomic weight polycyclic ambrosial hydrocarbons (PAHs) such as naphthalene, acenaphthene, acenaphthylene in beginning studies can be rapidly degradable. Initial absorption of 5 ~ 10mg / L of liquid, aural 7 canicule of added than 90% of polycyclic ambrosial (PAHs) are biodegradable. High atomic weight polycyclic ambrosial hydrocarbons (PAHs) such as fluoranthene, benzo (a) anthracene, flexion, benzo (a) anthracene and pyrene and added hard-biodegradable. Isolation arising attenuated area, amid about the admonishing signs, the proposed emergency cadre cutting masks, abrasion adapted dress. Do not absolute acquaintance with leakage, to abstain dust, anxiously scan, bag placed alteration to a safe place. If ample spills, recycling or accumulating of complete decay treatment. Closed 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, abrasion anti-static overalls, cutting elastic gloves. Keep abroad from fire, heat, abode 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 unloading, packaging and containers to anticipate damage. Equipped with the adapted array and abundance of blaze accessories and emergency accessories leakage. Empty containers may be adverse residues.

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