Thursday, July 4, 2013

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


More about:M-Xylylene Diisocyanate suppliers for sale
From:Chemical raw material

Tuesday, July 2, 2013

About 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.