Quartz manufacturers and suppliers in india

Quartz

Properties

Melting point:: 1610 °C(lit.)

Boiling point:: 2230 °C

Density: 2.6 g/mL at 25 °C(lit.)

refractive index: n20/D 1.544(lit.)

storage temp.: no restrictions.

solubility: insoluble in H2O, acid solutions; soluble in HF

form: powder

color: white

Specific Gravity: 2.2-2.6

PH: 5-8 (400g/l, H2O, 20℃)(slurry)

Water Solubility: insoluble

Dielectric constant: 4.2（0.0℃）

Exposure limits: ACGIH: TWA 0.025 mg/m3
OSHA: TWA 50 μg/m3
NIOSH: IDLH 50 mg/m3; TWA 0.05 mg/m3

Stability:: Stable.

InChIKey: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Safety Information

Symbol(GHS): GHS08

Signal word: Danger

Hazard statements: H372

Precautionary statements: P260-P264-P270-P314-P501

Hazard Codes: Xn

Risk Statements: 36/37/38-48/20

Safety Statements: 26-24/25-22

OEB: D

OEL: TWA: 0.05 mg/m3

WGK Germany: 3

RTECS: ZG6800000

TSCA: Yes

HS Code: 25061000

Toxicity: LDLo intravenous in dog: 20mg/kg

IDLA: 25 mg/m3

Use

Formulators may select silicon dioxide (solum diaomeae) as an alternative to diatomaceous earth or clay, particularly when developing mineral make-up, pressed or loose powders. Silicon dioxide has abrasive, absorbent, and anti-caking properties, and can also reduce the transparency of a formulation. Silicon dioxide is the u.S. name for what is known as solum diatomeae.