Batch NO.:CHT-260605 Deacetylation Degree(D.D):15~25% Loss on Drying:≤8.0% Residue on Ignition:≤2.5% Protein Residue:≤0.8% Heavy Metal(Pb＜10ppm, As＜2ppm) Microbe Limit:No Salmonella/E.coli, total aerobic count controlled within food-grade standard

This natural marine-derived polysaccharide extracted from crustacean shell is multi-functional bio-based raw material applied across food, cosmetic, pharmaceutical and environmental industry, non-direct edible food ingredient. In pharma field, it is raw precursor to produce chitosan after alkaline deacetylation; chitin itself is used for biodegradable wound dressing auxiliary material and sustained-release drug carrier skeleton for tablet formulations. Cosmetic industry adds refined chitin into facial mask, soothing cream and scalp care products to improve moisture retention and alleviate mild skin inflammation. Food processing applies food-grade chitin as clarifying flocculant for fruit juice, wine and edible beverage to adsorb residual protein impurities and improve liquid clarity. Environmental protection field uses chitin as bio-adsorbent to capture heavy metal ions and residual dyes from industrial wastewater. Lab analytical grade serves as biological experiment substrate for microbial culture and polysaccharide structure research in biochemistry laboratories.

GHS low-toxic raw material with mild irritant property, hazard statements H315(Skin irritation), H319(Eye irritation), H335(respiratory discomfort from excessive dust inhalation). Operators wear dust-proof nitrile gloves, splash goggles and dust-resistant lab coat during pulverizing and weighing under ventilated workspace to avoid fine powder inhalation. After skin contact, rinse contaminated area with plenty of running soapy water for over 15 minutes; continuous clean water eye irrigation more than 15 min once ocular splashing happens and seek medical help for persistent irritation. Small accidental oral intake is basically harmless to human body; excessive consumption may cause transient bloating and indigestion needing symptomatic care. Waste chitin residues belong to biodegradable general solid waste following environmental rules, prohibited random sewer dumping. Store separately from strong concentrated acid and strong oxidizing agents to prevent acidic hydrolysis and polymer chain breakdown.